151 research outputs found
Autodyne sensor signals with amplitude-frequency modulation of radiation
A mathematical model of an autodyne oscillator with a combined amplitude-frequency modulation, which is under the influence of its own radiation reflected from the target, is developed. The main relations are obtained for analyzing the autodyne response of a single-circuit oscillator depending on the delay time of the radiation reflected from the target with an arbitrary law of simultaneous amplitude and frequency modulation. The characteristics of the amplitude selection of signals, as well as their temporal and spectral characteristics, are calculated for harmonic amplitude-frequency modulation. The features of signal formation are established for various values of the amplitude and frequency modulation parameters and the feedback parameter of the βoscillatorβtargetβ autoparametric system. The results of experimental studies, performed on a Tigel-0.8M hybrid-integrated Ka-band oscillator module with a Gann mesa-planar diode, confirmed the findings of the theoretical analysis. Β© 2020 by the authors. Licensee MDPI, Basel, Switzerland.This research was funded by the Ministry of Science and Higher Education of the Russian Federation (agreement no. 075-11-2019-052 of 13 December 2019)
ΠΠ΅ΡΠΎΠ΄ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ ΡΠ°Π·ΡΠ΅ΡΠ°ΡΡΠ΅ΠΉ ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ ΠΏΠΎ Π΄Π°Π»ΡΠ½ΠΎΡΡΠΈ ΡΠ°Π΄ΠΈΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΡΡ Π΄Π°ΡΡΠΈΠΊΠΎΠ² ΡΠΈΡΡΠ΅ΠΌ Π±Π»ΠΈΠΆΠ½Π΅ΠΉ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΈ
The description of a new method for increasing the resolution of radio pulse sensors (RPS) designed for short- range radar systems (SRRS) for detecting and measuring motion parameters of location objects is presented. The essence of the method is that the controlled area of space with the targets located in it is periodically irradiated with probing radio pulses, and during their radiation, radio pulses reflected from the targets are simultaneously received and divided into two quadrature channels. Next, they are mixed with probing radio pulses, and the time-overlapping parts of these radio pulses are converted into the region of low Doppler frequencies in the form of two quadrature video pulses. Then, the quadrature video pulses received in these channels are sampled by amplitude, stored at multiple points in time and digitally processed according to the proposed algorithm. The method is implemented in the RPS made on the basis of a horn-lens antenna, a Doppler receiving and transmitting module with quadrature outputs of converted signals, a synchronization and pulse generation unit, as well as a digital signal processing unit. The RPS can be used in onboard (for example, automotive) SRRS designed to detect moving targets, measure the distance to them, as well as determine the speed and direction of movement. The results of experimental studies have been obtained on the example of the 8-mm autodyne RPS made on the basis of the oscillator on a planar Gann-diode.Β Bogatyrev E. V., Vishnyakov D. S., Ignatkov K. A., Noskov V. Ya. Method of increasing the range resolution of radio pulse sensors of short-r ange radar systems. Ural Radio Engineering Journal. 2023;7(2):166β190. (In Russ.) DOI: 10.15826/urej.2023.7.2.005.ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ ΠΎΠΏΠΈΡΠ°Π½ΠΈΠ΅ Π½ΠΎΠ²ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄Π° ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ ΡΠ°Π·ΡΠ΅ΡΠ°ΡΡΠ΅ΠΉ ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ ΡΠ°Π΄ΠΈΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΡΡ
Π΄Π°ΡΡΠΈΠΊΠΎΠ² (Π ΠΠ), ΠΏΡΠ΅Π΄Π½Π°Π·Π½Π°ΡΠ΅Π½Π½ΡΡ
Π΄Π»Ρ ΡΠΈΡΡΠ΅ΠΌ Π±Π»ΠΈΠΆΠ½Π΅ΠΉ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΈ (Π‘ΠΠ Π) ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ ΠΈ ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² Π΄Π²ΠΈΠΆΠ΅Π½ΠΈΡ ΠΎΠ±ΡΠ΅ΠΊΡΠΎΠ² Π»ΠΎΠΊΠ°ΡΠΈΠΈ. Π‘ΡΡΡ ΠΌΠ΅ΡΠΎΠ΄Π° ΡΠΎΡΡΠΎΠΈΡ Π² ΡΠΎΠΌ, ΡΡΠΎ ΠΊΠΎΠ½ΡΡΠΎΠ»ΠΈΡΡΠ΅ΠΌΡΡ ΠΎΠ±Π»Π°ΡΡΡ ΠΏΡΠΎΡΡΡΠ°Π½ΡΡΠ²Π° Ρ Π½Π°Ρ
ΠΎΠ΄ΡΡΠΈΠΌΠΈΡΡ Π² Π½Π΅ΠΉ ΡΠ΅Π»ΡΠΌΠΈ ΠΏΠ΅ΡΠΈΠΎΠ΄ΠΈΡΠ΅ΡΠΊΠΈ ΠΎΠ±Π»ΡΡΠ°ΡΡ Π·ΠΎΠ½Π΄ΠΈΡΡΡΡΠΈΠΌΠΈ ΡΠ°Π΄ΠΈΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ°ΠΌΠΈ, ΠΏΡΠΈΡΠ΅ΠΌ Π²ΠΎ Π²ΡΠ΅ΠΌΡ ΠΈΡ
ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ ΠΎΠ΄Π½ΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎ ΠΏΡΠΈΠ½ΠΈΠΌΠ°ΡΡ ΠΎΡΡΠ°ΠΆΠ΅Π½Π½ΡΠ΅ ΠΎΡ ΡΠ΅Π»Π΅ΠΉ ΡΠ°Π΄ΠΈΠΎΠΈΠΌΠΏΡΠ»ΡΡΡ ΠΈ ΡΠ°Π·Π΄Π΅Π»ΡΡΡ ΠΈΡ
Π½Π° Π΄Π²Π° ΠΊΠ²Π°Π΄ΡΠ°ΡΡΡΠ½ΡΡ
ΠΊΠ°Π½Π°Π»Π°. ΠΠ°Π»Π΅Π΅ ΡΠΌΠ΅ΡΠΈΠ²Π°ΡΡ ΠΈΡ
Ρ Π·ΠΎΠ½Π΄ΠΈΡΡΡΡΠΈΠΌΠΈ ΡΠ°Π΄ΠΈΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ°ΠΌΠΈ, ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΡΡΡ ΠΏΠ΅ΡΠ΅ΠΊΡΡΠ²Π°ΡΡΠΈΠ΅ΡΡ ΠΏΠΎ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΡΠ°ΡΡΠΈ ΡΡΠΈΡ
ΡΠ°Π΄ΠΈΠΎΠΈΠΌΠΏΡΠ»ΡΡΠΎΠ² Π² ΠΎΠ±Π»Π°ΡΡΡ Π½ΠΈΠ·ΠΊΠΈΡ
Π΄ΠΎΠΏΠ»Π΅ΡΠΎΠ²ΡΠΊΠΈΡ
ΡΠ°ΡΡΠΎΡ Π² Π²ΠΈΠ΄Π΅ Π΄Π²ΡΡ
ΠΊΠ²Π°Π΄ΡΠ°ΡΡΡΠ½ΡΡ
Π²ΠΈΠ΄Π΅ΠΎΠΈΠΌΠΏΡΠ»ΡΡΠΎΠ². ΠΠ°ΡΠ΅ΠΌ ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ Π² ΡΡΠΈΡ
ΠΊΠ°Π½Π°Π»Π°Ρ
ΠΊΠ²Π°Π΄ΡΠ°ΡΡΡΠ½ΡΠ΅ Π²ΠΈΠ΄Π΅ΠΎΠΈΠΌΠΏΡΠ»ΡΡΡ Π΄ΠΈΡΠΊΡΠ΅ΡΠΈΠ·ΠΈΡΡΡΡ ΠΏΠΎ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄Π΅, Π·Π°ΠΏΠΎΠΌΠΈΠ½Π°ΡΡ Π²ΠΎ ΠΌΠ½ΠΎΠΆΠ΅ΡΡΠ²Π΅ ΠΌΠΎΠΌΠ΅Π½ΡΠΎΠ² Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΠΈ ΠΏΠΎΠ΄Π²Π΅ΡΠ³Π°ΡΡ ΡΠΈΡΡΠΎΠ²ΠΎΠΉ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠ΅ ΠΏΠΎ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΠΎΠΌΡ Π°Π»Π³ΠΎΡΠΈΡΠΌΡ. ΠΠ΅ΡΠΎΠ΄ ΡΠ΅Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½ Π² Π ΠΠ, Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠΌ Π½Π° Π±Π°Π·Π΅ ΡΡΠΏΠΎΡΠ½ΠΎ-Π»ΠΈΠ½Π·ΠΎΠ²ΠΎΠΉ Π°Π½ΡΠ΅Π½Π½Ρ, Π΄ΠΎΠΏΠ»Π΅ΡΠΎΠ²ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠΈΠ΅ΠΌΠΎΠΏΠ΅ΡΠ΅Π΄Π°ΡΡΠ΅Π³ΠΎ ΠΌΠΎΠ΄ΡΠ»Ρ Ρ ΠΊΠ²Π°Π΄ΡΠ°ΡΡΡΠ½ΡΠΌΠΈ Π²ΡΡ
ΠΎΠ΄Π°ΠΌΠΈ ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½Π½ΡΡ
ΡΠΈΠ³Π½Π°Π»ΠΎΠ², Π±Π»ΠΎΠΊΠ° ΡΠΈΠ½Ρ
ΡΠΎΠ½ΠΈΠ·Π°ΡΠΈΠΈ ΠΈ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈΠΌΠΏΡΠ»ΡΡΠΎΠ², Π° ΡΠ°ΠΊΠΆΠ΅ Π±Π»ΠΎΠΊΠ° ΡΠΈΡΡΠΎΠ²ΠΎΠΉ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΠΈΠ³Π½Π°Π»ΠΎΠ². Π ΠΠ ΠΌΠΎΠΆΠ΅Ρ Π½Π°ΠΉΡΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ Π² Π±ΠΎΡΡΠΎΠ²ΡΡ
Π‘ΠΠ Π (Π½Π°ΠΏΡΠΈΠΌΠ΅Ρ, Π°Π²ΡΠΎΠΌΠΎΠ±ΠΈΠ»ΡΠ½ΡΡ
), ΠΏΡΠ΅Π΄Π½Π°Π·Π½Π°ΡΠ΅Π½Π½ΡΡ
Π΄Π»Ρ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ Π΄Π²ΠΈΠΆΡΡΠΈΡ
ΡΡ ΡΠ΅Π»Π΅ΠΉ, ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΡ Π΄ΠΎ Π½ΠΈΡ
, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΈ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π΄Π²ΠΈΠΆΠ΅Π½ΠΈΡ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ Π½Π° ΠΏΡΠΈΠΌΠ΅ΡΠ΅ Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠ³ΠΎ Π ΠΠ 8-ΠΌΠΌ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π°, Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠ³ΠΎ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ° Π½Π° ΠΏΠ»Π°Π½Π°ΡΠ½ΠΎΠΌ Π΄ΠΈΠΎΠ΄Π΅ ΠΠ°Π½Π½Π°.Β ΠΠΎΠ³Π°ΡΡΡΠ΅Π² Π. Π., ΠΠΈΡΠ½ΡΠΊΠΎΠ² Π. Π‘., ΠΠ³Π½Π°ΡΠΊΠΎΠ² Π. Π., ΠΠΎΡΠΊΠΎΠ² Π. Π―. ΠΠ΅ΡΠΎΠ΄ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ ΡΠ°Π·ΡΠ΅ΡΠ°ΡΡΠ΅ΠΉ ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ ΠΏΠΎ Π΄Π°Π»ΡΠ½ΠΎΡΡΠΈ ΡΠ°Π΄ΠΈΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΡΡ
Π΄Π°ΡΡΠΈΠΊΠΎΠ² ΡΠΈΡΡΠ΅ΠΌ Π±Π»ΠΈΠΆΠ½Π΅ΠΉ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΈ. Ural Radio Engineering Journal. 2023;7(2):166β190. DOI: 10.15826/urej.2023.7.2.005
ΠΡΠΈΠ½ΡΠΈΠΏ Π΄Π΅ΠΉΡΡΠ²ΠΈΡ Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠ³ΠΎ ΠΎΠΏΡΠΎΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΏΡΠΈΠ΅ΠΌΠΎΠΏΠ΅ΡΠ΅Π΄Π°ΡΡΠΈΠΊΠ° Π΄Π»Ρ ΡΠΈΡΡΠ΅ΠΌ Π±Π»ΠΈΠΆΠ½Π΅ΠΉ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΈ
The description of the device and the principle of operation of a new type of autodyne transceiver of short-range radar systems (SRRS), made on the basis of an optoelectronic oscillator (OEO), is presented. The antenna is connected to the OEO through a dividing-decoupling device (DDD), which provides, on the one hand, conditions for generating self-oscillations in the system and, on the other hand, transmitting and receiving radio signals with minimal losses. The scheme of the DDD and the method of calculating their parameters are considered. A mathematical model of the autodyne system based on the OEO has been developed, and the basic relations for determining its parameters and characteristics have been obtained. It is demonstrated that the use of OEO provides a significant increase in the equivalent Q-factor of the oscillator system and the reduction in its own noise. The improvement of these parameters of the autodyne SRRS will significantly increase the range of operation, expand the range of operating frequencies and the scope of their application. The prospects of using autodynes based on OEO in the creation of detection systems of objects with a small effective scattering area, such as unmanned aerial vehicles, for protection against which the use of conventional (distant) radars is ineffective, are noted.Β Noskov V. Ya., Bogatyrev E. V., Galeev R. G., Ignatkov K. A., Shaidurov K. D. The principle of operation of an autodyne optoelectronic transceiver of short-range radar systems. Ural Radio Engineering Journal. 2022;6(3):269β295. (In Russ.) DOI: 10.15826/urej.2022.6.3.003.Β ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ ΠΎΠΏΠΈΡΠ°Π½ΠΈΠ΅ ΡΡΡΡΠΎΠΉΡΡΠ²Π° ΠΈ ΠΏΡΠΈΠ½ΡΠΈΠΏΠ° Π΄Π΅ΠΉΡΡΠ²ΠΈΡ Π½ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΈΠΏΠ° Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠ³ΠΎ ΠΏΡΠΈΠ΅ΠΌΠΎΠΏΠ΅ΡΠ΅Π΄Π°ΡΡΠΈΠΊΠ° Π΄Π»Ρ ΡΠΈΡΡΠ΅ΠΌ Π±Π»ΠΈΠΆΠ½Π΅ΠΉ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΈ (Π‘ΠΠ Π), Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠ³ΠΎ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΎΠΏΡΠΎΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠ³ΠΎ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ° (ΠΠΠ). ΠΠΎΠ΄ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅ Π°Π½ΡΠ΅Π½Π½Ρ ΠΊ ΠΠΠ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠ΅ΡΠ΅Π· Π΄Π΅Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎ-ΡΠ°Π·Π²ΡΠ·ΡΠ²Π°ΡΡΠ΅Π΅ ΡΡΡΡΠΎΠΉΡΡΠ²ΠΎ (ΠΠ Π£), ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°ΡΡΠ΅Π΅, Ρ ΠΎΠ΄Π½ΠΎΠΉ ΡΡΠΎΡΠΎΠ½Ρ, ΡΡΠ»ΠΎΠ²ΠΈΡ Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠΈ Π°Π²ΡΠΎΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ Π² ΡΠΈΡΡΠ΅ΠΌΠ΅ ΠΈ Ρ Π΄ΡΡΠ³ΠΎΠΉ β ΠΏΠ΅ΡΠ΅Π΄Π°ΡΡ ΠΈ ΠΏΡΠΈΠ΅ΠΌ ΡΠ°Π΄ΠΈΠΎΡΠΈΠ³Π½Π°Π»ΠΎΠ² Ρ ΠΌΠΈΠ½ΠΈΠΌΠ°Π»ΡΠ½ΡΠΌΠΈ ΠΏΠΎΡΠ΅ΡΡΠΌΠΈ. Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ Π²Π°ΡΠΈΠ°Π½ΡΡ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΡ ΠΠ Π£ ΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΡΠ°ΡΡΠ΅ΡΠ° ΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ². Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π° ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΌΠΎΠ΄Π΅Π»Ρ Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΠΠ, ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ ΠΎΡΠ½ΠΎΠ²Π½ΡΠ΅ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΡ Π΄Π»Ρ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ Π΅Π΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΠΈ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΠΠΠ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅Ρ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ΅ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ ΡΠΊΠ²ΠΈΠ²Π°Π»Π΅Π½ΡΠ½ΠΎΠΉ Π΄ΠΎΠ±ΡΠΎΡΠ½ΠΎΡΡΠΈ ΠΊΠΎΠ»Π΅Π±Π°ΡΠ΅Π»ΡΠ½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ° ΠΈ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΠ΅ Π΅Π³ΠΎ ΡΠΎΠ±ΡΡΠ²Π΅Π½Π½ΡΡ
ΡΡΠΌΠΎΠ². Π£Π»ΡΡΡΠ΅Π½ΠΈΠ΅ Π΄Π°Π½Π½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΡΡ
Π‘ΠΠ Π ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΡ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ²Π΅Π»ΠΈΡΠΈΡΡ Π΄Π°Π»ΡΠ½ΠΎΡΡΡ Π΄Π΅ΠΉΡΡΠ²ΠΈΡ, ΡΠ°ΡΡΠΈΡΠΈΡΡ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½ ΡΠ°Π±ΠΎΡΠΈΡ
ΡΠ°ΡΡΠΎΡ ΠΈ ΠΎΠ±Π»Π°ΡΡΡ ΠΈΡ
ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ. ΠΡΠΌΠ΅ΡΠ΅Π½Ρ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ Π°Π²ΡΠΎΠ΄ΠΈΠ½ΠΎΠ² Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΠΠ Π² ΡΠΎΠ·Π΄Π°Π½ΠΈΠΈ ΡΠΈΡΡΠ΅ΠΌ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ ΠΎΠ±ΡΠ΅ΠΊΡΠΎΠ² Ρ ΠΌΠ°Π»ΠΎΠΉ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠΉ ΠΏΠ»ΠΎΡΠ°Π΄ΡΡ ΡΠ°ΡΡΠ΅ΡΠ½ΠΈΡ, ΡΠ°ΠΊΠΈΡ
ΠΊΠ°ΠΊ Π±Π΅ΡΠΏΠΈΠ»ΠΎΡΠ½ΡΡ
Π»Π΅ΡΠ°ΡΡΠΈΡ
Π°ΠΏΠΏΠ°ΡΠ°ΡΠΎΠ², Π΄Π»Ρ Π·Π°ΡΠΈΡΡ ΠΎΡ ΠΊΠΎΡΠΎΡΡΡ
ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΠΎΠ±ΡΡΠ½ΡΡ
(Π΄Π°Π»ΡΠ½ΠΈΡ
) ΡΠ°Π΄Π°ΡΠΎΠ² ΠΌΠ°Π»ΠΎΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎ.Β Β Β ΠΠΎΡΠΊΠΎΠ² Π. Π―., ΠΠΎΠ³Π°ΡΡΡΠ΅Π² Π. Π., ΠΠ°Π»Π΅Π΅Π² Π . Π., ΠΠ³Π½Π°ΡΠΊΠΎΠ² Π. Π., Π¨Π°ΠΉΠ΄ΡΡΠΎΠ² Π. Π. ΠΡΠΈΠ½ΡΠΈΠΏ Π΄Π΅ΠΉΡΡΠ²ΠΈΡ Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠ³ΠΎ ΠΎΠΏΡΠΎΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΏΡΠΈΠ΅ΠΌΠΎΠΏΠ΅ΡΠ΅Π΄Π°ΡΡΠΈΠΊΠ° Π΄Π»Ρ ΡΠΈΡΡΠ΅ΠΌ Π±Π»ΠΈΠΆΠ½Π΅ΠΉ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΈ. Ural Radio Engineering Journal. 2022;6(3):269β295. DOI: 10.15826/urej.2022.6.3.003.
ΠΠ΅ΡΠΎΠ΄ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ ΠΏΠΎΠΌΠ΅Ρ ΠΎΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΠΈ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΎΠ½Π½ΡΡ Π΄Π°ΡΡΠΈΠΊΠΎΠ² Ρ ΠΏΠ΅ΡΠ΅ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΠ°ΡΡΠΎΡΡ
The description of a new method of signal generation and processing which provides an increase in the noise immunity of radar sensors (RS) with frequency switching (FS) radiation is presented. The principle of method is in the use of a set of time intervals when measuring the phase difference of signals at different radiation frequencies and, accordingly, a set of the Doppler frequency values in the signal spectrum when determining the average value of the Doppler frequency, as well as the use of forward and reverse IF sequences. This method allows averaging the results of calculating individual implementations and, thereby, increase the accuracy of determining the target speed and distance to it. At the same time, the stability of the RS with FS also increases to the effects of signals from third-party radio sources and interference from the underlying surface. The results of experimental studies of the method are obtained on the example of the autodyne RS with the 8-mm frequency range, made on the basis of the Gann diode generator with frequency control by varicap. The method may be used in on-board (for example, automotive) radar sensors designed to detect moving targets, measure the distance to them, as well as determine the speed and direction of movement.Β ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ ΠΎΠΏΠΈΡΠ°Π½ΠΈΠ΅ Π½ΠΎΠ²ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄Π° ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΠΈΠ³Π½Π°Π»ΠΎΠ², ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°ΡΡΠ΅Π³ΠΎ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ ΠΏΠΎΠΌΠ΅Ρ
ΠΎΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΠΈ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ Π΄Π°ΡΡΠΈΠΊΠ° (Π ΠΠ) Ρ ΠΏΠ΅ΡΠ΅ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΠ°ΡΡΠΎΡΡ (ΠΠ§) ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ. Π‘ΡΡΡ ΠΌΠ΅ΡΠΎΠ΄Π° ΡΠΎΡΡΠΎΠΈΡ Π² ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠΈ ΠΌΠ½ΠΎΠΆΠ΅ΡΡΠ²Π° Π²ΡΠ΅ΠΌΠ΅Π½Π½ΡΡ
ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»ΠΎΠ² ΠΏΡΠΈ ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΠΈ ΡΠ°Π·Π½ΠΎΡΡΠΈ ΡΠ°Π· ΡΠΈΠ³Π½Π°Π»ΠΎΠ² Π½Π° ΡΠ°Π·Π½ΡΡ
ΡΠ°ΡΡΠΎΡΠ°Ρ
ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ ΠΈ, ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²Π΅Π½Π½ΠΎ, ΠΌΠ½ΠΎΠΆΠ΅ΡΡΠ²Π° Π·Π½Π°ΡΠ΅Π½ΠΈΠΉ Π΄ΠΎΠΏΠ»Π΅ΡΠΎΠ²ΡΠΊΠΈΡ
ΡΠ°ΡΡΠΎΡ Π² ΡΠΏΠ΅ΠΊΡΡΠ΅ ΡΠΈΠ³Π½Π°Π»Π° ΠΏΡΠΈ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ ΡΡΠ΅Π΄Π½Π΅Π³ΠΎ Π·Π½Π°ΡΠ΅Π½ΠΈΡ Π΄ΠΎΠΏΠ»Π΅ΡΠΎΠ²ΡΠΊΠΎΠΉ ΡΠ°ΡΡΠΎΡΡ, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΏΡΡΠΌΠΎΠΉ ΠΈ ΠΎΠ±ΡΠ°ΡΠ½ΠΎΠΉ ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΠΎΡΡΠ΅ΠΉ ΠΠ§. ΠΠ°Π½Π½ΡΠΉ ΠΌΠ΅ΡΠΎΠ΄ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΡΡΡΠ΅Π΄Π½ΠΈΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ Π²ΡΡΠΈΡΠ»Π΅Π½ΠΈΡ ΠΎΡΠ΄Π΅Π»ΡΠ½ΡΡ
ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΠΉ ΠΈ, ΡΠ΅ΠΌ ΡΠ°ΠΌΡΠΌ, ΠΏΠΎΠ²ΡΡΠΈΡΡ ΡΠΎΡΠ½ΠΎΡΡΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠΊΠΎΡΠΎΡΡΠΈ ΡΠ΅Π»ΠΈ ΠΈ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΡ Π΄ΠΎ Π½Π΅Π΅. ΠΡΠΈ ΡΡΠΎΠΌ ΡΠ°ΠΊΠΆΠ΅ ΠΏΠΎΠ²ΡΡΠ°Π΅ΡΡΡ ΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΡ Π ΠΠ Ρ ΠΠ§ ΠΊ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡΠ²ΠΈΡ ΡΠΈΠ³Π½Π°Π»ΠΎΠ² ΠΎΡ ΡΡΠΎΡΠΎΠ½Π½ΠΈΡ
ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠΎΠ² ΡΠ°Π΄ΠΈΠΎΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ ΠΈ ΠΏΠΎΠΌΠ΅Ρ
ΠΎΡ ΠΏΠΎΠ΄ΡΡΠΈΠ»Π°ΡΡΠ΅ΠΉ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΌΠ΅ΡΠΎΠ΄Π° ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ Π½Π° ΠΏΡΠΈΠΌΠ΅ΡΠ΅ Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠ³ΠΎ Π ΠΠ Ρ ΠΠ§ 8-ΠΌΠΌ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π°, Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠ³ΠΎ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ° Π½Π° Π΄ΠΈΠΎΠ΄Π΅ ΠΠ°Π½Π½Π° Ρ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ ΡΠ°ΡΡΠΎΡΡ Π²Π°ΡΠΈΠΊΠ°ΠΏΠΎΠΌ. ΠΠ΅ΡΠΎΠ΄ ΠΌΠΎΠΆΠ΅Ρ Π½Π°ΠΉΡΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ Π² Π±ΠΎΡΡΠΎΠ²ΡΡ
(Π½Π°ΠΏΡΠΈΠΌΠ΅Ρ, Π°Π²ΡΠΎΠΌΠΎΠ±ΠΈΠ»ΡΠ½ΡΡ
) ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΎΠ½Π½ΡΡ
Π΄Π°ΡΡΠΈΠΊΠ°Ρ
, ΠΏΡΠ΅Π΄Π½Π°Π·Π½Π°ΡΠ΅Π½Π½ΡΡ
Π΄Π»Ρ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ Π΄Π²ΠΈΠΆΡΡΠΈΡ
ΡΡ ΡΠ΅Π»Π΅ΠΉ, ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΡ Π΄ΠΎ Π½ΠΈΡ
, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΈ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π΄Π²ΠΈΠΆΠ΅Π½ΠΈΡ.ΠΠΎΡΠΊΠΎΠ² Π. Π―., ΠΠΎΠ³Π°ΡΡΡΠ΅Π² Π. Π., ΠΠ³Π½Π°ΡΠΊΠΎΠ² Π. Π., Π§Π΅ΡΠ½ΡΡ
Π. Π., Π¨Π°ΠΉΠ΄ΡΡΠΎΠ² Π. Π. ΠΠ΅ΡΠΎΠ΄ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ ΠΏΠΎΠΌΠ΅Ρ
ΠΎΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΠΈ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΎΠ½Π½ΡΡ
Π΄Π°ΡΡΠΈΠΊΠΎΠ² Ρ ΠΏΠ΅ΡΠ΅ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΠ°ΡΡΠΎΡΡ. Ural Radio Engineering Journal. 2021;5(3):284β304. DOI: 10.15826/urej.2021.5.3.006.
Soliton formation from a pulse passing the zero-dispersion point in a nonlinear Schr\"odinger equation
We consider in detail the self-trapping of a soliton from a wave pulse that
passes from a defocussing region into a focussing one in a spatially
inhomogeneous nonlinear waveguide, described by a nonlinear Schrodinger
equation in which the dispersion coefficient changes its sign from normal to
anomalous. The model has direct applications to dispersion-decreasing nonlinear
optical fibers, and to natural waveguides for internal waves in the ocean. It
is found that, depending on the (conserved) energy and (nonconserved) mass of
the initial pulse, four qualitatively different outcomes of the pulse
transformation are possible: decay into radiation; self-trapping into a single
soliton; formation of a breather; and formation of a pair of counterpropagating
solitons. A corresponding chart is drawn on a parametric plane, which
demonstrates some unexpected features. In particular, it is found that any kind
of soliton(s) (including the breather and counterpropagating pair) eventually
decays into pure radiation with the increase of the energy, the initial mass
being kept constant. It is also noteworthy that a virtually direct transition
from a single soliton into a pair of symmetric counterpropagating ones seems
possible. An explanation for these features is proposed. In two cases when
analytical approximations apply, viz., a simple perturbation theory for broad
initial pulses, or the variational approximation for narrow ones, comparison
with the direct simulations shows reasonable agreement.Comment: 18 pages, 10 figures, 1 table. Phys. Rev. E, in pres
The Influence of Concomitant AM on the Formation of FM Autodyne Radars Signals
ΠΠΎΡΡΡΠΏΠΈΠ»Π°: 21.06.2020. ΠΡΠΈΠ½ΡΡΠ° Π² ΠΏΠ΅ΡΠ°ΡΡ: 20.07.2020.Received: 21.06.2020. Accepted: 20.07.2020.ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠ΅ΠΉ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΠΈΠ³Π½Π°Π»ΠΎΠ² Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΡΡ
ΡΠΈΡΡΠ΅ΠΌ Π±Π»ΠΈΠΆΠ½Π΅ΠΉ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΈ Ρ ΠΊΠΎΠΌΠ±ΠΈΠ½ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΉ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄Π½ΠΎ-ΡΠ°ΡΡΠΎΡΠ½ΠΎΠΉ ΠΌΠΎΠ΄ΡΠ»ΡΡΠΈΠ΅ΠΉ. ΠΠΎΠ»ΡΡΠ΅Π½Ρ Π²ΡΡΠ°ΠΆΠ΅Π½ΠΈΡ Π΄Π»Ρ ΡΠ°ΡΡΠ΅ΡΠ° Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΡΡ
ΡΠΈΠ³Π½Π°Π»ΠΎΠ² ΠΎΠ΄Π½ΠΎΠΊΠΎΠ½ΡΡΡΠ½ΠΎΠ³ΠΎ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ° Ρ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ»ΡΠ½ΡΠΌ Π·Π°ΠΊΠΎΠ½ΠΎΠΌ ΠΎΠ΄Π½ΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎΠΉ ΠΌΠΎΠ΄ΡΠ»ΡΡΠΈΠΈ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄Ρ ΠΈ ΡΠ°ΡΡΠΎΡΡ Π² ΠΎΠ±ΡΠ΅ΠΌ ΡΠ»ΡΡΠ°Π΅ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ»ΡΠ½ΠΎΠ³ΠΎ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΡ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ Π·Π°ΠΏΠ°Π·Π΄ΡΠ²Π°Π½ΠΈΡ ΠΎΡΡΠ°ΠΆΠ΅Π½Π½ΠΎΠ³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ ΠΈ ΠΏΠ΅ΡΠΈΠΎΠ΄Π° ΠΌΠΎΠ΄ΡΠ»ΠΈΡΡΡΡΠ΅ΠΉ ΡΡΠ½ΠΊΡΠΈΠΈ. ΠΡΠΏΠΎΠ»Π½Π΅Π½Ρ ΡΠ°ΡΡΠ΅ΡΡ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄Π½ΠΎΠΉ ΡΠ΅Π»Π΅ΠΊΡΠΈΠΈ ΠΈ ΠΈΡ
ΡΠ΅ΡΠ΅Π½ΠΈΠΉ, Π° ΡΠ°ΠΊΠΆΠ΅ Π²ΡΠ΅ΠΌΠ΅Π½Π½ΡΡ
ΠΈ ΡΠΏΠ΅ΠΊΡΡΠ°Π»ΡΠ½ΡΡ
Π΄ΠΈΠ°Π³ΡΠ°ΠΌΠΌ Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΡΡ
ΡΠΈΠ³Π½Π°Π»ΠΎΠ² Π΄Π»Ρ ΡΠ»ΡΡΠ°Ρ ΠΌΠΎΠ΄ΡΠ»ΡΡΠΈΠΈ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄Ρ ΠΈ ΡΠ°ΡΡΠΎΡΡ ΠΏΠΎ Π³Π°ΡΠΌΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΎΠΌΡ Π·Π°ΠΊΠΎΠ½Ρ. ΠΡΠΈ ΡΡΠΎΠΌ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ ΡΠ»ΡΡΠ°ΠΈ, ΠΊΠΎΠ³Π΄Π° Π²ΡΠ΅ΠΌΡ Π·Π°ΠΏΠ°Π·Π΄ΡΠ²Π°Π½ΠΈΡ ΠΎΡΡΠ°ΠΆΠ΅Π½Π½ΠΎΠ³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΠΌΠ΅Π½ΡΡΠ΅ ΠΏΡΠΎΠ΄ΠΎΠ»ΠΆΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΠΈ ΠΏΠ΅ΡΠΈΠΎΠ΄Π° ΠΌΠΎΠ΄ΡΠ»ΡΡΠΈΠΈ, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΏΡΠΈ ΠΈΡ
ΡΠΎΠΈΠ·ΠΌΠ΅ΡΠΈΠΌΡΡ
Π·Π½Π°ΡΠ΅Π½ΠΈΡΡ
. ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π²ΡΠΏΠΎΠ»Π½Π΅Π½Ρ Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ° Π½Π° Π΄ΠΈΠΎΠ΄Π΅ ΠΠ°Π½Π½Π° 8-ΠΌΠΈΠ»Π»ΠΈΠΌΠ΅ΡΡΠΎΠ²ΠΎΠ³ΠΎ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π° Π΄Π»ΠΈΠ½ Π²ΠΎΠ»Π½. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ Π²Π°ΡΠΈΠ°Π½ΡΡ ΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ ΠΏΠΎ ΡΠ°ΡΡΠΎΡΠ΅ ΠΏΡΠΈ ΠΏΠΎΠΌΠΎΡΠΈ Π²Π°ΡΠΈΠΊΠ°ΠΏΠ° ΠΈ ΠΏΠΎ ΡΠ΅ΠΏΠΈ ΡΠΌΠ΅ΡΠ΅Π½ΠΈΡ Π΄ΠΈΠΎΠ΄Π° ΠΠ°Π½Π½Π°. ΠΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ½ΡΡ
ΠΌΠΎΠ΄ΡΠ»Π΅ΠΉ ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»ΠΈ ΡΡΠΎΡΠΌΡΠ»ΠΈΡΠΎΠ²Π°ΡΡ ΡΡΠ΅Π±ΠΎΠ²Π°Π½ΠΈΡ ΠΊ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ°ΠΌ ΠΈ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠ°ΠΌ ΡΠΎΠ·Π΄Π°Π²Π°Π΅ΠΌΡΡ
Π³ΠΈΠ±ΡΠΈΠ΄Π½ΠΎ-ΠΈΠ½ΡΠ΅Π³ΡΠ°Π»ΡΠ½ΡΡ
ΡΡ
Π΅ΠΌ ΠΈ ΠΌΠΎΠ΄ΡΠ»Π΅ΠΉ Ρ ΡΠ°ΡΡΠΎΡΠ½ΠΎΠΉ ΠΌΠΎΠ΄ΡΠ»ΡΡΠΈΠ΅ΠΉ ΠΈ Π½Π°ΠΌΠ΅ΡΠΈΡΡ ΠΏΡΡΠΈ ΠΈΡ
Π΄Π°Π»ΡΠ½Π΅ΠΉΡΠ΅Π³ΠΎ ΡΠΎΠ²Π΅ΡΡΠ΅Π½ΡΡΠ²ΠΎΠ²Π°Π½ΠΈΡ.The paper presents the results of studies of the features of the formation of signals from autodyne short-range radar systems with combined amplitude-frequency modulation. Expressions are obtained for calculating the autodyne signals of a single-loop oscillator with the arbitrary law of simultaneous amplitude and frequency modulation in the general case of the arbitrary ratio of the delay time of the reflected radiation and the period of the modulating function. The calculations of the characteristics of the amplitude selection and their cross sections, as well as the time and spectral diagrams of autodyne signals for the case of modulation of the amplitude and frequency according to the harmonic law, have been performed. In this situation, the cases are considered when the delay time of the reflected radiation is much shorter than the duration of the modulation period, as well as when their values are comparable. Experimental studies were carried out using an oscillator based on a Gunn diode in the 8-mm wavelength range. Variants of electrical frequency control using a varicap and a bias circuit of the Gunn diode are investigated. The obtained results of the research of the generator modules made it possible to formulate the requirements for the parameters and characteristics of the created hybrid-integrated circuits and frequency modulation modules and outline the ways for their further improvement.This article was prepared with the financial support of the Ministry of Science and Higher Education of the Russian Federation (Agreement No. 075-11-2019-052 of December 13, 2019).ΠΠ°ΡΡΠΎΡΡΠ°Ρ ΡΡΠ°ΡΡΡ ΠΏΠΎΠ΄Π³ΠΎΡΠΎΠ²Π»Π΅Π½Π° ΠΏΡΠΈ ΡΠΈΠ½Π°Π½ΡΠΎΠ²ΠΎΠΉ ΠΏΠΎΠ΄Π΄Π΅ΡΠΆΠΊΠ΅ ΠΠΈΠ½ΠΈΡΡΠ΅ΡΡΡΠ²Π° Π½Π°ΡΠΊΠΈ ΠΈ Π²ΡΡΡΠ΅Π³ΠΎ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ Π ΠΎΡΡΠΈΠΉΡΠΊΠΎΠΉ Π€Π΅Π΄Π΅ΡΠ°ΡΠΈΠΈ (ΡΠΎΠ³Π»Π°ΡΠ΅Π½ΠΈΠ΅ β 075-11-2019-052 ΠΎΡ 13 Π΄Π΅ΠΊΠ°Π±ΡΡ 2019)
Features of the Formation and Processing of Signals in an Autodyne Radar with Frequency Modulation Taking into Account the Nonlinearity of the Modulation Characteristic
ΠΠΎΡΡΡΠΏΠΈΠ»Π°: 09.06.2021. ΠΡΠΈΠ½ΡΡΠ° Π² ΠΏΠ΅ΡΠ°ΡΡ: 27.06.2021.Received: 09.06.2021. Accepted: 27.06.2021.The results of the study of the features of the formation and processing of signals of autodyne short-range radar systems (SRR) with frequency modulation (FM) involving non-linearity of the modulation characteristic are presented. The numerical simulation of the nonlinear influence of the modulation characteristic on the shape and spectrum of the autodyne signal is implemented on the basis of the mathematical model of the autodyne generator. We have established that even a small non-linearity of this characteristic causes a significant distortion of the shape and spectrum of the autodyne signal. A method of quasi-static correction of the law of frequency modulation of probing radiation using a digital signal processor is proposed, which does not require complication of the microwave part of the autodyne SRR with FM. The results of experimental studies of an 8-mm autodyne SRR made on the basis of a Gann diode oscillator with frequency control by varicap are presented.ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠ΅ΠΉ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΠΈΠ³Π½Π°Π»ΠΎΠ² Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΡΡ
ΡΠΈΡΡΠ΅ΠΌ Π±Π»ΠΈΠΆΠ½Π΅ΠΉ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΈ (Π‘ΠΠ Π) Ρ ΡΠ°ΡΡΠΎΡΠ½ΠΎΠΉ ΠΌΠΎΠ΄ΡΠ»ΡΡΠΈΠ΅ΠΉ (Π§Π) ΠΏΡΠΈ Π½Π°Π»ΠΈΡΠΈΠΈ Π½Π΅Π»ΠΈΠ½Π΅ΠΉΠ½ΠΎΡΡΠΈ ΠΌΠΎΠ΄ΡΠ»ΡΡΠΈΠΎΠ½Π½ΠΎΠΉ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ. ΠΠ° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»ΠΈ Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠ³ΠΎ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ° Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΎ ΡΠΈΡΠ»Π΅Π½Π½ΠΎΠ΅ ΠΌΠΎΠ΄Π΅Π»ΠΈΡΠΎΠ²Π°Π½ΠΈΠ΅ Π²Π»ΠΈΡΠ½ΠΈΡ Π½Π΅Π»ΠΈΠ½Π΅ΠΉΠ½ΠΎΡΡΠΈ ΠΌΠΎΠ΄ΡΠ»ΡΡΠΈΠΎΠ½Π½ΠΎΠΉ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ Π½Π° ΡΠΎΡΠΌΡ ΠΈ ΡΠΏΠ΅ΠΊΡΡ Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠ³ΠΎ ΡΠΈΠ³Π½Π°Π»Π°. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ Π΄Π°ΠΆΠ΅ ΠΌΠ°Π»Π°Ρ Π½Π΅Π»ΠΈΠ½Π΅ΠΉΠ½ΠΎΡΡΡ ΡΡΠΎΠΉ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ Π²ΡΠ·ΡΠ²Π°Π΅Ρ ΡΡΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠ΅ ΠΈΡΠΊΠ°ΠΆΠ΅Π½ΠΈΡ ΡΠΎΡΠΌΡ ΠΈ ΡΠΏΠ΅ΠΊΡΡΠ° Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠ³ΠΎ ΡΠΈΠ³Π½Π°Π»Π°. ΠΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½ ΠΌΠ΅ΡΠΎΠ΄ ΠΊΠ²Π°Π·ΠΈΡΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΊΠΎΡΡΠ΅ΠΊΡΠΈΠΈ Π·Π°ΠΊΠΎΠ½Π° ΡΠ°ΡΡΠΎΡΠ½ΠΎΠΉ ΠΌΠΎΠ΄ΡΠ»ΡΡΠΈΠΈ Π·ΠΎΠ½Π΄ΠΈΡΡΡΡΠ΅Π³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ΠΌ ΡΠΈΡΡΠΎΠ²ΠΎΠ³ΠΎ ΡΠΈΠ³Π½Π°Π»ΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠ΅ΡΡΠΎΡΠ°, Π½Π΅ ΡΡΠ΅Π±ΡΡΡΠΈΠΉ ΡΡΠ»ΠΎΠΆΠ½Π΅Π½ΠΈΡ Π‘ΠΠ§ ΡΠ°ΡΡΠΈ Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠΉ Π‘ΠΠ Π Ρ Π§Π. ΠΡΠΈΠ²Π΅Π΄Π΅Π½Ρ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠΉ Π‘ΠΠ Π 8-ΠΌΠΌ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π°, Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠΉ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ° Π½Π° Π΄ΠΈΠΎΠ΄Π΅ ΠΠ°Π½Π½Π° Ρ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ ΡΠ°ΡΡΠΎΡΡ Π²Π°ΡΠΈΠΊΠ°ΠΏΠΎΠΌ
Method of Increasing the Range Resolution of Radio Pulse Sensors of Short-Range Radar Systems
ΠΠΎΡΡΡΠΏΠΈΠ»Π°: 27.03.2023. ΠΡΠΈΠ½ΡΡΠ° Π² ΠΏΠ΅ΡΠ°ΡΡ: 16.05.2023.Received: 27.03.2023. Accepted: 16.05.2023.ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ ΠΎΠΏΠΈΡΠ°Π½ΠΈΠ΅ Π½ΠΎΠ²ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄Π° ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΡ ΡΠ°Π·ΡΠ΅ΡΠ°ΡΡΠ΅ΠΉ ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ ΡΠ°Π΄ΠΈΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ½ΡΡ
Π΄Π°ΡΡΠΈΠΊΠΎΠ² (Π ΠΠ), ΠΏΡΠ΅Π΄Π½Π°Π·Π½Π°ΡΠ΅Π½Π½ΡΡ
Π΄Π»Ρ ΡΠΈΡΡΠ΅ΠΌ Π±Π»ΠΈΠΆΠ½Π΅ΠΉ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΈ (Π‘ΠΠ Π) ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ ΠΈ ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² Π΄Π²ΠΈΠΆΠ΅Π½ΠΈΡ ΠΎΠ±ΡΠ΅ΠΊΡΠΎΠ² Π»ΠΎΠΊΠ°ΡΠΈΠΈ. Π‘ΡΡΡ ΠΌΠ΅ΡΠΎΠ΄Π° ΡΠΎΡΡΠΎΠΈΡ Π² ΡΠΎΠΌ, ΡΡΠΎ ΠΊΠΎΠ½ΡΡΠΎΠ»ΠΈΡΡΠ΅ΠΌΡΡ ΠΎΠ±Π»Π°ΡΡΡ ΠΏΡΠΎΡΡΡΠ°Π½ΡΡΠ²Π° Ρ Π½Π°Ρ
ΠΎΠ΄ΡΡΠΈΠΌΠΈΡΡ Π² Π½Π΅ΠΉ ΡΠ΅Π»ΡΠΌΠΈ ΠΏΠ΅ΡΠΈΠΎΠ΄ΠΈΡΠ΅ΡΠΊΠΈ ΠΎΠ±Π»ΡΡΠ°ΡΡ Π·ΠΎΠ½Π΄ΠΈΡΡΡΡΠΈΠΌΠΈ ΡΠ°Π΄ΠΈΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ°ΠΌΠΈ, ΠΏΡΠΈΡΠ΅ΠΌ Π²ΠΎ Π²ΡΠ΅ΠΌΡ ΠΈΡ
ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ ΠΎΠ΄Π½ΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎ ΠΏΡΠΈΠ½ΠΈΠΌΠ°ΡΡ ΠΎΡΡΠ°ΠΆΠ΅Π½Π½ΡΠ΅ ΠΎΡ ΡΠ΅Π»Π΅ΠΉ ΡΠ°Π΄ΠΈΠΎΠΈΠΌΠΏΡΠ»ΡΡΡ ΠΈ ΡΠ°Π·Π΄Π΅Π»ΡΡΡ ΠΈΡ
Π½Π° Π΄Π²Π° ΠΊΠ²Π°Π΄ΡΠ°ΡΡΡΠ½ΡΡ
ΠΊΠ°Π½Π°Π»Π°. ΠΠ°Π»Π΅Π΅ ΡΠΌΠ΅ΡΠΈΠ²Π°ΡΡ ΠΈΡ
Ρ Π·ΠΎΠ½Π΄ΠΈΡΡΡΡΠΈΠΌΠΈ ΡΠ°Π΄ΠΈΠΎΠΈΠΌΠΏΡΠ»ΡΡΠ°ΠΌΠΈ, ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΡΡΡ ΠΏΠ΅ΡΠ΅ΠΊΡΡΠ²Π°ΡΡΠΈΠ΅ΡΡ ΠΏΠΎ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΡΠ°ΡΡΠΈ ΡΡΠΈΡ
ΡΠ°Π΄ΠΈΠΎΠΈΠΌΠΏΡΠ»ΡΡΠΎΠ² Π² ΠΎΠ±Π»Π°ΡΡΡ Π½ΠΈΠ·ΠΊΠΈΡ
Π΄ΠΎΠΏΠ»Π΅ΡΠΎΠ²ΡΠΊΠΈΡ
ΡΠ°ΡΡΠΎΡ Π² Π²ΠΈΠ΄Π΅ Π΄Π²ΡΡ
ΠΊΠ²Π°Π΄ΡΠ°ΡΡΡΠ½ΡΡ
Π²ΠΈΠ΄Π΅ΠΎΠΈΠΌΠΏΡΠ»ΡΡΠΎΠ². ΠΠ°ΡΠ΅ΠΌ ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ Π² ΡΡΠΈΡ
ΠΊΠ°Π½Π°Π»Π°Ρ
ΠΊΠ²Π°Π΄ΡΠ°ΡΡΡΠ½ΡΠ΅ Π²ΠΈΠ΄Π΅ΠΎΠΈΠΌΠΏΡΠ»ΡΡΡ Π΄ΠΈΡΠΊΡΠ΅ΡΠΈΠ·ΠΈΡΡΡΡ ΠΏΠΎ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄Π΅, Π·Π°ΠΏΠΎΠΌΠΈΠ½Π°ΡΡ Π²ΠΎ ΠΌΠ½ΠΎΠΆΠ΅ΡΡΠ²Π΅ ΠΌΠΎΠΌΠ΅Π½ΡΠΎΠ² Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΠΈ ΠΏΠΎΠ΄Π²Π΅ΡΠ³Π°ΡΡ ΡΠΈΡΡΠΎΠ²ΠΎΠΉ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠ΅ ΠΏΠΎ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΠΎΠΌΡ Π°Π»Π³ΠΎΡΠΈΡΠΌΡ. ΠΠ΅ΡΠΎΠ΄ ΡΠ΅Π°Π»ΠΈΠ·ΠΎΠ²Π°Π½ Π² Π ΠΠ, Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠΌ Π½Π° Π±Π°Π·Π΅ ΡΡΠΏΠΎΡΠ½ΠΎ-Π»ΠΈΠ½Π·ΠΎΠ²ΠΎΠΉ Π°Π½ΡΠ΅Π½Π½Ρ, Π΄ΠΎΠΏΠ»Π΅ΡΠΎΠ²ΡΠΊΠΎΠ³ΠΎ ΠΏΡΠΈΠ΅ΠΌΠΎΠΏΠ΅ΡΠ΅Π΄Π°ΡΡΠ΅Π³ΠΎ ΠΌΠΎΠ΄ΡΠ»Ρ Ρ ΠΊΠ²Π°Π΄ΡΠ°ΡΡΡΠ½ΡΠΌΠΈ Π²ΡΡ
ΠΎΠ΄Π°ΠΌΠΈ ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½Π½ΡΡ
ΡΠΈΠ³Π½Π°Π»ΠΎΠ², Π±Π»ΠΎΠΊΠ° ΡΠΈΠ½Ρ
ΡΠΎΠ½ΠΈΠ·Π°ΡΠΈΠΈ ΠΈ ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈΠΌΠΏΡΠ»ΡΡΠΎΠ², Π° ΡΠ°ΠΊΠΆΠ΅ Π±Π»ΠΎΠΊΠ° ΡΠΈΡΡΠΎΠ²ΠΎΠΉ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΠΈΠ³Π½Π°Π»ΠΎΠ². Π ΠΠ ΠΌΠΎΠΆΠ΅Ρ Π½Π°ΠΉΡΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ Π² Π±ΠΎΡΡΠΎΠ²ΡΡ
Π‘ΠΠ Π (Π½Π°ΠΏΡΠΈΠΌΠ΅Ρ, Π°Π²ΡΠΎΠΌΠΎΠ±ΠΈΠ»ΡΠ½ΡΡ
), ΠΏΡΠ΅Π΄Π½Π°Π·Π½Π°ΡΠ΅Π½Π½ΡΡ
Π΄Π»Ρ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ Π΄Π²ΠΈΠΆΡΡΠΈΡ
ΡΡ ΡΠ΅Π»Π΅ΠΉ, ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΡ Π΄ΠΎ Π½ΠΈΡ
, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΈ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π΄Π²ΠΈΠΆΠ΅Π½ΠΈΡ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ Π½Π° ΠΏΡΠΈΠΌΠ΅ΡΠ΅ Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠ³ΠΎ Π ΠΠ 8βΠΌΠΌ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π°, Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠ³ΠΎ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ° Π½Π° ΠΏΠ»Π°Π½Π°ΡΠ½ΠΎΠΌ Π΄ΠΈΠΎΠ΄Π΅ ΠΠ°Π½Π½Π°.The description of a new method for increasing the resolution of radio pulse sensors (RPS) designed for short-range radar systems (SRRS) for detecting and measuring motion parameters of location objects is presented. The essence of the method is that the controlled area of space with the targets located in it is periodically irradiated with probing radio pulses, and during their radiation, radio pulses reflected from the targets are simultaneously received and divided into two quadrature channels. Next, they are mixed with probing radio pulses, and the time-overlapping parts of these radio pulses are converted into the region of low Doppler frequencies in the form of two quadrature video pulses. Then, the quadrature video pulses received in these channels are sampled by amplitude, stored at multiple points in time and digitally processed according to the proposed algorithm. The method is implemented in the RPS made on the basis of a horn-lens antenna, a Doppler receiving and transmitting module with quadrature outputs of converted signals, a synchronization and pulse generation unit, as well as a digital signal processing unit. The RPS can be used in onboard (for example, automotive) SRRS designed to detect moving targets, measure the distance to them, as well as determine the speed and direction of movement. The results of experimental studies have been obtained on the example of the 8βmm autodyne RPS made on the basis of the oscillator on a planar Gann-diode
Method for increasing noise resistance of radar sensors with frequency selection
ΠΠΎΡΡΡΠΏΠΈΠ»Π°: 09.09.2021. ΠΡΠΈΠ½ΡΡΠ° Π² ΠΏΠ΅ΡΠ°ΡΡ: 22.10.2021.Received: 09.09.2021. Accepted: 22.10.2021.ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ ΠΎΠΏΠΈΡΠ°Π½ΠΈΠ΅ Π½ΠΎΠ²ΠΎΠ³ΠΎ ΠΌΠ΅ΡΠΎΠ΄Π° ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΈ ΠΎΠ±ΡΠ°Π±ΠΎΡΠΊΠΈ ΡΠΈΠ³Π½Π°Π»ΠΎΠ², ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°ΡΡΠ΅Π³ΠΎ ΠΏΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ ΠΏΠΎΠΌΠ΅Ρ
ΠΎΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΠΈ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ Π΄Π°ΡΡΠΈΠΊΠ° (Π ΠΠ) Ρ ΠΏΠ΅ΡΠ΅ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅ΠΌ ΡΠ°ΡΡΠΎΡΡ (ΠΠ§) ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ. Π‘ΡΡΡ ΠΌΠ΅ΡΠΎΠ΄Π° ΡΠΎΡΡΠΎΠΈΡ Π² ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠΈ ΠΌΠ½ΠΎΠΆΠ΅ΡΡΠ²Π° Π²ΡΠ΅ΠΌΠ΅Π½Π½ΡΡ
ΠΈΠ½ΡΠ΅ΡΠ²Π°Π»ΠΎΠ² ΠΏΡΠΈ ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΠΈ ΡΠ°Π·Π½ΠΎΡΡΠΈ ΡΠ°Π· ΡΠΈΠ³Π½Π°Π»ΠΎΠ² Π½Π° ΡΠ°Π·Π½ΡΡ
ΡΠ°ΡΡΠΎΡΠ°Ρ
ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ ΠΈ, ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²Π΅Π½Π½ΠΎ, ΠΌΠ½ΠΎΠΆΠ΅ΡΡΠ²Π° Π·Π½Π°ΡΠ΅Π½ΠΈΠΉ Π΄ΠΎΠΏΠ»Π΅ΡΠΎΠ²ΡΠΊΠΈΡ
ΡΠ°ΡΡΠΎΡ Π² ΡΠΏΠ΅ΠΊΡΡΠ΅ ΡΠΈΠ³Π½Π°Π»Π° ΠΏΡΠΈ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ ΡΡΠ΅Π΄Π½Π΅Π³ΠΎ Π·Π½Π°ΡΠ΅Π½ΠΈΡ Π΄ΠΎΠΏΠ»Π΅ΡΠΎΠ²ΡΠΊΠΎΠΉ ΡΠ°ΡΡΠΎΡΡ, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΏΡΡΠΌΠΎΠΉ ΠΈ ΠΎΠ±ΡΠ°ΡΠ½ΠΎΠΉ ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΠΎΡΡΠ΅ΠΉ ΠΠ§. ΠΠ°Π½Π½ΡΠΉ ΠΌΠ΅ΡΠΎΠ΄ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΡΡΡΠ΅Π΄Π½ΠΈΡΡ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ Π²ΡΡΠΈΡΠ»Π΅Π½ΠΈΡ ΠΎΡΠ΄Π΅Π»ΡΠ½ΡΡ
ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΠΉ ΠΈ, ΡΠ΅ΠΌ ΡΠ°ΠΌΡΠΌ, ΠΏΠΎΠ²ΡΡΠΈΡΡ ΡΠΎΡΠ½ΠΎΡΡΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠΊΠΎΡΠΎΡΡΠΈ ΡΠ΅Π»ΠΈ ΠΈ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΡ Π΄ΠΎ Π½Π΅Π΅. ΠΡΠΈ ΡΡΠΎΠΌ ΡΠ°ΠΊΠΆΠ΅ ΠΏΠΎΠ²ΡΡΠ°Π΅ΡΡΡ ΡΡΡΠΎΠΉΡΠΈΠ²ΠΎΡΡΡ Π ΠΠ Ρ ΠΠ§ ΠΊ Π²ΠΎΠ·Π΄Π΅ΠΉΡΡΠ²ΠΈΡ ΡΠΈΠ³Π½Π°Π»ΠΎΠ² ΠΎΡ ΡΡΠΎΡΠΎΠ½Π½ΠΈΡ
ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠΎΠ² ΡΠ°Π΄ΠΈΠΎΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ ΠΈ ΠΏΠΎΠΌΠ΅Ρ
ΠΎΡ ΠΏΠΎΠ΄ΡΡΠΈΠ»Π°ΡΡΠ΅ΠΉ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ ΠΌΠ΅ΡΠΎΠ΄Π° ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ Π½Π° ΠΏΡΠΈΠΌΠ΅ΡΠ΅ Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠ³ΠΎ Π ΠΠ Ρ ΠΠ§ 8-ΠΌΠΌ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π°, Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠ³ΠΎ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ° Π½Π° Π΄ΠΈΠΎΠ΄Π΅ ΠΠ°Π½Π½Π° Ρ ΡΠΏΡΠ°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ ΡΠ°ΡΡΠΎΡΡ Π²Π°ΡΠΈΠΊΠ°ΠΏΠΎΠΌ. ΠΠ΅ΡΠΎΠ΄ ΠΌΠΎΠΆΠ΅Ρ Π½Π°ΠΉΡΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ Π² Π±ΠΎΡΡΠΎΠ²ΡΡ
(Π½Π°ΠΏΡΠΈΠΌΠ΅Ρ, Π°Π²ΡΠΎΠΌΠΎΠ±ΠΈΠ»ΡΠ½ΡΡ
) ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΎΠ½Π½ΡΡ
Π΄Π°ΡΡΠΈΠΊΠ°Ρ
, ΠΏΡΠ΅Π΄Π½Π°Π·Π½Π°ΡΠ΅Π½Π½ΡΡ
Π΄Π»Ρ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ Π΄Π²ΠΈΠΆΡΡΠΈΡ
ΡΡ ΡΠ΅Π»Π΅ΠΉ, ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΡΠ°ΡΡΡΠΎΡΠ½ΠΈΡ Π΄ΠΎ Π½ΠΈΡ
, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΈ Π½Π°ΠΏΡΠ°Π²Π»Π΅Π½ΠΈΡ Π΄Π²ΠΈΠΆΠ΅Π½ΠΈΡ.The description of a new method of signal generation and processing which provides an increase in the noise immunity of radar sensors (RS) with frequency switching (FS) radiation is presented. The principle of method is in the use of a set of time intervals when measuring the phase difference of signals at different radiation frequencies and, accordingly, a set of the Doppler frequency values in the signal spectrum when determining the average value of the Doppler frequency, as well as the use of forward and reverse IF sequences. This method allows averaging the results of calculating individual implementations and, thereby, increase the accuracy of determining the target speed and distance to it. At the same time, the stability of the RS with FS also increases to the effects of signals from third-party radio sources and interference from the underlying surface. The results of experimental studies of the method are obtained on the example of the autodyne RS with the 8-mm frequency range, made on the basis of the Gann diode generator with frequency control by varicap. The method may be used in on-board (for example, automotive) radar sensors designed to detect moving targets, measure the distance to them, as well as determine the speed and direction of movement
The Principle of Operation of an Autodyne Optoelectronic Transceiver of Short-Range Radar Systems
ΠΠΎΡΡΡΠΏΠΈΠ»Π°: 30.08.2022. ΠΡΠΈΠ½ΡΡΠ° Π² ΠΏΠ΅ΡΠ°ΡΡ: 22.09.2022Received: 30.08.2022. Accepted: 22.09.2022.ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ ΠΎΠΏΠΈΡΠ°Π½ΠΈΠ΅ ΡΡΡΡΠΎΠΉΡΡΠ²Π° ΠΈ ΠΏΡΠΈΠ½ΡΠΈΠΏΠ° Π΄Π΅ΠΉΡΡΠ²ΠΈΡ Π½ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΈΠΏΠ° Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠ³ΠΎ ΠΏΡΠΈΠ΅ΠΌΠΎΠΏΠ΅ΡΠ΅Π΄Π°ΡΡΠΈΠΊΠ° Π΄Π»Ρ ΡΠΈΡΡΠ΅ΠΌ Π±Π»ΠΈΠΆΠ½Π΅ΠΉ ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΈ (Π‘ΠΠ Π), Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠ³ΠΎ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΎΠΏΡΠΎΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠ³ΠΎ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ° (ΠΠΠ). ΠΠΎΠ΄ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅ Π°Π½ΡΠ΅Π½Π½Ρ ΠΊ ΠΠΠ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ΅ΡΡΡ ΡΠ΅ΡΠ΅Π· Π΄Π΅Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎ-ΡΠ°Π·Π²Ρ- Π·ΡΠ²Π°ΡΡΠ΅Π΅ ΡΡΡΡΠΎΠΉΡΡΠ²ΠΎ (ΠΠ Π£), ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°ΡΡΠ΅Π΅, Ρ ΠΎΠ΄Π½ΠΎΠΉ ΡΡΠΎΡΠΎΠ½Ρ, ΡΡΠ»ΠΎΠ²ΠΈΡ Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠΈ Π°Π²ΡΠΎΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ Π² ΡΠΈΡΡΠ΅ΠΌΠ΅ ΠΈ Ρ Π΄ΡΡΠ³ΠΎΠΉ - ΠΏΠ΅ΡΠ΅Π΄Π°ΡΡ ΠΈ ΠΏΡΠΈΠ΅ΠΌ ΡΠ°Π΄ΠΈΠΎΡΠΈΠ³Π½Π°Π»ΠΎΠ² Ρ ΠΌΠΈΠ½ΠΈΠΌΠ°Π»ΡΠ½ΡΠΌΠΈ ΠΏΠΎΡΠ΅ΡΡΠΌΠΈ. Π Π°ΡΡΠΌΠΎΡΡΠ΅Π½Ρ Π²Π°ΡΠΈΠ°Π½ΡΡ Π²ΡΠΏΠΎΠ»Π½Π΅Π½ΠΈΡ ΠΠ Π£ ΠΈ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΡΠ°ΡΡΠ΅ΡΠ° ΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ². Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π° ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΌΠΎΠ΄Π΅Π»Ρ Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΠΠ, ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ ΠΎΡΠ½ΠΎΠ²Π½ΡΠ΅ ΡΠΎΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΡ Π΄Π»Ρ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ Π΅Π΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΠΈ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΠΠΠ ΠΎΠ±Π΅ΡΠΏΠ΅ΡΠΈΠ²Π°Π΅Ρ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ΅ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΠ΅ ΡΠΊΠ²ΠΈΠ²Π°Π»Π΅Π½ΡΠ½ΠΎΠΉ Π΄ΠΎΠ±ΡΠΎΡΠ½ΠΎΡΡΠΈ ΠΊΠΎΠ»Π΅Π±Π°ΡΠ΅Π»ΡΠ½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠ° ΠΈ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΠ΅ Π΅Π³ΠΎ ΡΠΎΠ±ΡΡΠ²Π΅Π½Π½ΡΡ
ΡΡΠΌΠΎΠ². Π£Π»ΡΡΡΠ΅Π½ΠΈΠ΅ Π΄Π°Π½Π½ΡΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² Π°Π²ΡΠΎΠ΄ΠΈΠ½Π½ΡΡ
Π‘ΠΠ Π ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΡ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ²Π΅Π»ΠΈΡΠΈΡΡ Π΄Π°Π»ΡΠ½ΠΎΡΡΡ Π΄Π΅ΠΉΡΡΠ²ΠΈΡ, ΡΠ°ΡΡΠΈΡΠΈΡΡ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½ ΡΠ°Π±ΠΎΡΠΈΡ
ΡΠ°ΡΡΠΎΡ ΠΈ ΠΎΠ±Π»Π°ΡΡΡ ΠΈΡ
ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ. ΠΡΠΌΠ΅ΡΠ΅Π½Ρ ΠΏΠ΅ΡΡΠΏΠ΅ΠΊΡΠΈΠ²Ρ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ Π°Π²ΡΠΎΠ΄ΠΈΠ½ΠΎΠ² Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΠΠ Π² ΡΠΎΠ·Π΄Π°Π½ΠΈΠΈ ΡΠΈΡΡΠ΅ΠΌ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ ΠΎΠ±ΡΠ΅ΠΊΡΠΎΠ² Ρ ΠΌΠ°Π»ΠΎΠΉ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΠΉ ΠΏΠ»ΠΎΡΠ°Π΄ΡΡ ΡΠ°ΡΡΠ΅ΡΠ½ΠΈΡ, ΡΠ°ΠΊΠΈΡ
ΠΊΠ°ΠΊ Π±Π΅ΡΠΏΠΈΠ»ΠΎΡΠ½ΡΡ
Π»Π΅ΡΠ°ΡΡΠΈΡ
Π°ΠΏΠΏΠ°ΡΠ°ΡΠΎΠ², Π΄Π»Ρ Π·Π°ΡΠΈΡΡ ΠΎΡ ΠΊΠΎΡΠΎΡΡΡ
ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΠΎΠ±ΡΡΠ½ΡΡ
(Π΄Π°Π»ΡΠ½ΠΈΡ
) ΡΠ°Π΄Π°ΡΠΎΠ² ΠΌΠ°Π»ΠΎΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎ.The description of the device and the principle of operation of a new type of autodyne transceiver of short-range radar systems (SRRS), made on the basis of an optoelectronic oscillator (OEO), is presented. The antenna is connected to the OEO through a dividing-decoupling device (DDD), which provides, on the one hand, conditions for generating self-oscillations in the system and, on the other hand, transmitting and receiving radio signals with minimal losses. The scheme of the DDD and the method of calculating their parameters are considered. A mathematical model of the autodyne system based on the OEO has been developed, and the basic relations for determining its parameters and characteristics have been obtained. It is demonstrated that the use of OEO provides a significant increase in the equivalent Q-factor of the oscillator system and the reduction in its own noise. The improvement of these parameters of the autodyne SRRS will significantly increase the range of operation, expand the range of operating frequencies and the scope of their application. The prospects of using autodynes based on OEO in the creation of detection systems of objects with a small effective scattering area, such as unmanned aerial vehicles, for protection against which the use of conventional (distant) radars is ineffective, are noted
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