14 research outputs found
Simultaneous determine of Doppler shift and group delay time using amplitude modulated chirp-signal
New method of the simultaneous measurement of the frequency dependencies of Doppler shift and group delay time of separate ionosphere modes by means of amplitude modulated chirp signal is presented in this paper. The algorithms of data processing are presented.ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΎ Π½ΠΎΠ²ΠΈΠΉ ΠΌΠ΅ΡΠΎΠ΄ ΠΎΠ΄Π½ΠΎΡΠ°ΡΠ½ΠΎΠ³ΠΎ Π²ΠΈΠΌΡΡΡΠ²Π°Π½Π½Ρ ΡΠ°ΡΡΠΎΡΠ½ΠΈΡ
Π·Π°Π»Π΅ΠΆΠ½ΠΎΡΡΠ΅ΠΉ Π΄ΠΎΠΏΠΏΠ»Π΅ΡΡΠ²ΡΡΠΊΠΎΠ³ΠΎ Π·ΡΡΠ²Ρ Ρ ΡΠ°ΡΡ Π³ΡΡΠΏΠΎΠ²ΠΎΡ Π·Π°ΡΡΠΈΠΌΠΊΠΈ ΠΎΠΊΡΠ΅ΠΌΠΈΡ
ΡΠΎΠ½ΠΎΡΡΠ΅ΡΠ½ΠΈΡ
ΠΌΠΎΠ΄ Π· Π²ΠΈΠΊΠΎΡΠΈΡΡΠ°Π½Π½ΡΠΌ Π±Π΅Π·ΠΏΠ΅ΡΠ΅ΡΠ²Π½ΠΎΠ³ΠΎ ΠΠ§Π ΡΠΈΠ³Π½Π°Π»Ρ Π· Π°ΠΌΠΏΠ»ΡΡΡΠ΄Π½ΠΎΡ ΠΌΠΎΠ΄ΡΠ»ΡΡΡΡΡ. ΠΠ°Π²Π΅Π΄Π΅Π½ΠΎ ΠΏΠΎΡΡΠ΄ΠΎΠΊ ΠΎΠ±ΡΠΎΠ±ΠΊΠΈ Π΄Π°Π½ΠΈΡ
ΠΏΡΠ΄ ΡΠ°Ρ Π²ΠΈΠΌΡΡΡΠ²Π°Π½Π½Ρ
Gaussian fluctuations in an ideal bose-gas -- a simple model
Based on the canonical ensemble, we suggested the simple scheme for taking
into account Gaussian fluctuations in a finite system of ideal boson gas.
Within framework of scheme we investigated the influence of fluctuations on the
particle distribution in Bose -gas for two cases - with taking into account the
number of particles in the ground state and without this assumption. The
temperature and fluctuation parameter dependences of the modified Bose-
Einstein distribution have been determined. Also the dependence of the
condensation temperature on the fluctuation distribution parameter has been
obtained.Comment: arXiv admin note: text overlap with arXiv:cond-mat/040859
Application of model of mixture of probabilistic distributions for definition of the signals of radiophysical probing
The article describes a model representation of radar probing data in form of a mixture of background and target samples, which is the sum of two random variables with very different parameters. For model development we research the behavior of the central moments of the distribution mix without assuming the distribution law form. An example it is described the detection of the signal at the output of compression system of chirp ionosonde
Simultaneous measuring of Doppler frequency shift and group delay time by means of amplitude-modulated LFM-signal
New method of the simultaneous measurement of the frequency dependencies of Doppler shift and group delay time of separate ionosphere modes by means of amplitude modulated chirp signal is presented in this paper. The algorithms for data processing are presented
Application of techniques for separating anomalous samples during the processing of SW LFM signal
The paper deals with the processing of linear frequency modulated signal of decameter waveband based on statistical approach of separating anomalous samples in experimental observations. Techniques for the rejection of narrow-band interferences and separation of desired signal have been developed on the basis of model proposed by the authors for a mixture of distributions. The specified techniques were simulated and experimentally evaluated
Application of model of mixture of probabilistic distributions for definition of the signals of radiophysical probing
ΠΠΎΠ»Π½ΡΠΉ ΡΠ΅ΠΊΡΡ Π΄ΠΎΡΡΡΠΏΠ΅Π½ Π½Π° ΡΠ°ΠΉΡΠ΅ ΠΈΠ·Π΄Π°Π½ΠΈΡ ΠΏΠΎ ΠΏΠΎΠ΄ΠΏΠΈΡΠΊΠ΅: http://radio.kpi.ua/article/view/S0021347016080057The article describes a model representation of radar probing data in form of a mixture of background and target samples, which is the sum of two random variables with very different parameters. For model development we research the behavior of the central moments of the distribution mix without assuming the distribution law form. An example it is described the detection of the signal at the output of compression system of chirp ionosonde.Π ΡΡΠ°ΡΡΠ΅ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π° ΠΌΠΎΠ΄Π΅Π»Ρ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½ΠΈΡ Π΄Π°Π½Π½ΡΡ
ΡΠ°Π΄ΠΈΠΎΠ»ΠΎΠΊΠ°ΡΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ Π·ΠΎΠ½Π΄ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π² Π²ΠΈΠ΄Π΅ ΡΠΌΠ΅ΡΠΈ ΡΠΎΠ½ΠΎΠ²ΡΡ
ΠΈ ΡΠ΅Π»Π΅Π²ΡΡ
ΠΎΡΡΡΠ΅ΡΠΎΠ², ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΡΡΠ°Ρ ΡΠΎΠ±ΠΎΠΉ ΡΡΠΌΠΌΡ Π΄Π²ΡΡ
ΡΠ»ΡΡΠ°ΠΉΠ½ΡΡ
Π²Π΅Π»ΠΈΡΠΈΠ½ Ρ ΡΠΈΠ»ΡΠ½ΠΎ ΡΠ°Π·Π»ΠΈΡΠ°ΡΡΠΈΠΌΠΈΡΡ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ°ΠΌΠΈ. ΠΠ»Ρ ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΈΠ·ΡΡΠ΅Π½ΠΎ ΠΏΠΎΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ ΡΠ΅Π½ΡΡΠ°Π»ΡΠ½ΡΡ
ΠΌΠΎΠΌΠ΅Π½ΡΠΎΠ² Π±Π΅Π· ΠΏΡΠ΅Π΄ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΡ ΠΎ Π²ΠΈΠ΄Π΅ Π·Π°ΠΊΠΎΠ½Π° ΡΠ°ΡΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ ΡΠΌΠ΅ΡΠΈ. ΠΡΠΈΠ²Π΅Π΄Π΅Π½ ΠΏΡΠΈΠΌΠ΅Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΡ Π΄Π»Ρ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½ΠΈΡ ΡΠΈΠ³Π½Π°Π»Π° Π½Π° Π²ΡΡ
ΠΎΠ΄Π΅ ΡΠΈΡΡΠ΅ΠΌΡ ΡΠΆΠ°ΡΠΈΡ ΠΠ§Π ΠΈΠΎΠ½ΠΎΠ·ΠΎΠ½Π΄Π°