47 research outputs found
NEW TYPE OF NEARLY MONOTONIC PASSBAND FILTERS WITH SHARP CUTOFF
New type of nearly monotonic rational function with one pair of zeros on imaginary axis has been proposed. By using these new functions with zeros as a parameter, it is possible to make tradeoff between minimum stopband attenuation and selectivity of the amplitude characteristic. In order to present efficiency of the proposed filter, comparison with allpole filter monotonic in the passband and inverse Chebyshev filter is presented. Also, design example for the seventh order new type lowpass filter is given
Chained-Function Filter Synthesis Based on the Modified Jacobi Polynomials
A new class of filter functions with pass-band ripple which derives its origin from a method of determining the chained function lowpass filters described by Guglielmi and Connor is introduced. The closed form expressions of the characteristic functions of these filters are derived by using orthogonal Jacobi polynomial. Since the Jacobi polynomials can not be used directly as filtering function, these polynomials have been adapted by using the parity relation for Jacobi polynomials in order to be used as a filter approximating function. The obtained magnitude response of these filters is more general than the magnitude response of published Chebyshev and Legendre chained function filter, because two additional parameters of modified Jacobi polynomials as two additional degrees of freedom are available. It is shown that proposed modified Jacobi chained function filters approximation also includes the Chebyshev chained function filters, the Legendre chained function filter, and many other types of filter approximations, as its special cases
A Comparison of Papoulis and Chebyshev Filters in the Continuous Time Domain
The subject of this paper is the revisit of the Chebyshev (equiripple) and Papoulis (monotonic or staircase) low-pass filter in order to compare. It can be stated the fair comparison of Papoulis and Chebyshev filters cannot be found in the available literature. At the beginning, it is shown that ripple parameter may be used in order the Chebyshev filter to obtain a magnitude response having less passband ripple than the standard Chebyshev response. At the same time, the passband edge frequency is preserved at 3 dB. Further, the unified approach to design odd and even degree Papoulis filters is explained. For the purpose of comparison, the Chebyshev filter as a counterpart of the Papoulis filter is introduced. Thus obtained Chebyshev filter has the same stop band insertion loss, group delay and transient response as Papoulis filter. However, its passband performance is much better. It is shown that Chebyshev filter counterpart offers a better solution than Papoulis filter in all applications, except in ones applications where is required that passband attenuation to have a staircase shape
An RC active filter design handbook
The design of filters is described. Emphasis is placed on simplified procedures that can be used by the reader who has minimum knowledge about circuit design and little acquaintance with filter theory. The handbook has three main parts. The first part is a review of some information that is essential for work with filters. The second part includes design information for specific types of filter circuitry and describes simple procedures for obtaining the component values for a filter that will have a desired set of characteristics. Pertinent information relating to actual performance is given. The third part (appendix) is a review of certain topics in filter theory and is intended to provide some basic understanding of how filters are designed
Nove klase funkcija za sintezu dvokanalne hibridne banke filtara
This PhD discusses the research related to the approximation and implementation of the twochannel
hybrid filter banks. Special attention is paid to the analogue part, i.e. analysis part of
the hybrid filter banks.
Two approximations of the filter bank pair for analysis have been proposed. The first approximation
of the transfer function of the low-pass filter is based on the simple adaptation
of the orthogonal Jacobi polynomials in order to obtain the Pseudo-Jacobian polynomials. In
relation to other known approximations, the Pseudo-Jacobian polynomial one has two prime
parameters, which can adjust the characteristics of the filter in wide ranges. This approximation
can be successfully applied for the realization of a complementary bank of filters.
It is known that recursive double-complementary digital filter banks can be implemented
with all-pass filters, and research has shown that double-complementary filter banks can also
be realized in the analogue domain. The realization of the proposed filter bank has been done
in two steps. In the first step, with the complementary decomposition, the prototype transfer
function is obtained by two all-pass filters, while in the second step, by their addition or subtraction,
transfer functions of lowpass and highpass filters are obtained. The advantage of such
a system is that the same hardware can be used for realization of both low frequency and high
frequency transfer functions.
Monte Carlo simulation of the realization of a double complementary analog filter pair
based on a parallel connection of two analogue all-pass filters showed that all-pass realization
is characterized by a small sensitivity of the attenuation characteristics to the component
tolerances in the filter pass-band, while the sensitivity in the stop-band is substantially higher
compared to the case of a standard cascade realization of the low-pass filter and the high-pass
filter.
By a suitable selection of the analysis filter bank and the synthesis filter bank, a condition
for suppressing the effects arising from the overlapping of the spectrum in banks for analysis
and synthesis can be fulfilled. The all-pass complementarity of an analogue filter bank points to
the fact that amplitude distortion, which is introduced by the analog bank of the analysis filters,
can be completely suppressed, so that the non-linearity of the group delay characteristics is the
predominant distortion.
In order to achieve a near perfect reconstruction of the signal, a new realization of the
group delay corrector was proposed, which makes it possible for the group delay to be constant
in a flat sense, i.e. with a number of flatness at the origin. An analysis of the sensitivity has
shown that the sensitivity of the correction of the group waveform in the filter pass-band that is
proportional to the square of the Q -factor of the pole. In other words, the group delay corrector
is very sensitive to the component tolerances
New Class of Functions for the Synthesis of Chain Filters
ΠΠΏΡΠΎΠΊΡΠΈΠΌΠ°ΡΠΈΡΠ° ΠΈ ΠΈΠΌΠΏΠ΅ΠΌΠ΅Π½ΡΠ°ΡΠΈΡΠ° Π»Π°Π½ΡΠ°Π½ΠΈΡ
ΡΠΈΠ»ΡΠ°ΡΠ° ΡΠ΅ ΠΏΡΠ΅Π΄ΠΌΠ΅Ρ Π°Π½Π°Π»ΠΈΠ·Π΅ ΠΈΡΡΡΠ°ΠΆΠΈΠ²Π°ΡΠ° ΠΏΡΠ΅Π·Π΅Π½ΡΠΎΠ²Π°Π½ΠΈΡ
Ρ Π΄ΠΈΡΠ΅ΡΡΠ°ΡΠΈΡΠΈ. ΠΠ°ΡΠ²Π°ΠΆΠ½ΠΈΡΠΈ ΡΠ΅Π·ΡΠ»ΡΠ°ΡΠΈ ΠΈΡΡΡΠ°ΠΆΠΈΠ²Π°ΡΠ° ΡΡ ΠΏΡΠΈΠΊΠ°Π·Π°Π½ΠΈ Ρ ΡΠ΅ΡΠΈΡΠΈ ΠΏΠΎΠ³Π»Π°Π²ΡΠ°: Π‘ΠΈΠ½ΡΠ΅Π·Π° ΡΠΈΠ»ΡΠ°ΡΡΠΊΠΈΡ
ΡΡΠ½ΠΊΡΠΈΡΠ° Jacobi-jeΠ²ΠΈΠΌ ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠΈΠΌΠ°, ΠΠΎΠ΄ΠΈΡΠΈΠΊΠΎΠ²Π°Π½Π° JacobijeΠ΅Π²Π° Π»Π°Π½ΡΠ°Π½Π° ΡΡΠ½ΠΊΡΠΈΡΠ°, Π‘ΠΈΠ½ΡΠ΅Π·Π° ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΡΠΊΠΈΡ
Π»Π°Π½ΡΠ°Π½ΠΈΡ
ΡΠΈΠ»ΡΠ°ΡΠ° ΠΈ Π Π΅Π°Π»ΠΈΠ·Π°ΡΠΈΡΠ°. Π£ ΠΠ°ΠΊΡΡΡΠΊΡ ΡΡ ΡΡΠΌΠΈΡΠ°Π½ΠΈ Π½Π°ΡΠ²Π°ΠΆΠ½ΠΈΡΠΈ Π½Π°ΡΡΠ½ΠΈ Π΄ΠΎΠΏΡΠΈΠ½ΠΎΡΠΈ ΠΈ ΠΏΡΠ°Π²ΡΠΈ Π±ΡΠ΄ΡΡΠΈΡ
ΠΈΡΡΡΠ°ΠΆΠΈΠ²Π°ΡΠ°.
ΠΠ»Π°Π²Π½ΠΈ Π΄Π΅ΠΎ ΠΏΡΠ΅Π΄ΡΡΠ°Π²ΡΠ΅Π½Π΅ Π΄ΠΈΡΠ΅ΡΡΠ°ΡΠΈΡΠ΅ ΠΏΠΎΠ΄Π΅ΡΠ΅Π½ ΡΠ΅ Ρ ΠΏΠ΅Ρ ΠΏΠΎΠ³Π»Π°Π²ΡΠ°. Π£ Π΄ΡΡΠ³ΠΎΠΌ ΠΏΠΎΠ³Π»Π°Π²ΡΡ, Π½Π°ΠΊΠΎΠ½ ΡΠ²ΠΎΠ΄Π°, ΠΏΠΎΡΠ°ΠΌ Π°ΠΏΡΠΎΠΊΡΠΈΠΌΠ°ΡΠΈΡΠ΅ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄ΡΠΊΠ΅ ΠΊΠ°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠ΅ ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΡΠΊΠΈΡ
ΡΠΈΠ»ΡΠ°ΡΠ° ΠΎΡΡΠΎΠ³ΠΎΠ½Π°Π»Π½ΠΈΠΌ ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠΈΠΌΠ° ΡΠ΅ ΠΏΡΠΎΡΠΈΡΠ΅Π½ ΠΈ Π½Π° ΠΏΡΠΈΠΌΠ΅Π½Ρ ΠΎΡΡΠΎΠ³ΠΎΠ½Π°Π»Π½ΠΈΡ
JacobijeΠ²ΠΈΡ
ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠ°. ΠΠ΅Π΄Π½ΠΎΡΡΠ°Π²Π½ΠΎΠΌ ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΈΡΠΎΠΌ ΠΎΡΡΠΎΠ³ΠΎΠ½Π°Π»Π½ΠΈΡ
Jacobi-jΠ΅Π²ΠΈΡ
ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠ° Π΄ΠΎΠ±ΠΈΡΠ΅Π½ΠΈ ΡΡ ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠΈ Π½Π°Π·Π²Π°Π½ΠΈ ΠΠΎΠ΄ΠΈΡΠΈΠΊΠΎΠ²Π°Π½ΠΈ-Jacobi-jΠ΅Π²ΠΈ ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠΈ, ΠΏΠΎΠ³ΠΎΠ΄Π½ΠΈ Π·Π° Π°ΠΏΡΠΎΠΊΡΠΈΠΌΠ°ΡΠΈΡΡ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄ΡΠΊΠ΅ ΠΊΠ°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠ΅ Π°Π½Π°Π»ΠΎΠ³Π½ΠΈΡ
ΡΠΈΠ»ΡΠ°ΡΠ° ΠΏΡΠΎΠΏΡΡΠ½ΠΈΠΊΠ° Π½ΠΈΡΠΊΠΈΡ
ΡΡΠ΅ΠΊΠ²Π΅Π½ΡΠΈΡΠ°. Π’ΡΠ΅Π±Π° Π½Π°ΠΏΠΎΠΌΠ΅Π½ΡΡΠΈ Π΄Π°
ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠΎΠ²Π°Π½ΠΈ JacobijeΠ²ΠΈ ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠΈ Π½ΠΈΡΡ ΠΎΡΡΠΎΠ³ΠΎΠ½Π°Π»Π½ΠΈ. ΠΠΊΠΎ ΡΠ΅ ΡΡΠ΅ΠΏΠ΅Π½ ΡΠΈΠ»ΡΠ°ΡΠ° Π·Π°Π΄Π°Ρ, ΠΎΠ±Π° ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ° JacobijΠ΅Π²ΠΎΠ³ ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠ° (Ξ± ΠΈ Ξ²) ΡΡ ΡΠ»ΠΎΠ±ΠΎΠ΄Π½ΠΈ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈ ΠΊΠΎΡΠΈ ΡΠ΅ ΠΌΠΎΠ³Ρ ΠΊΠΎΡΠΈΡΡΠΈΡΠΈ Π·Π° ΠΊΠΎΠ½ΡΠΈΠ½ΡΠΈΡΠ°Π½ΠΎ ΠΏΠΎΠ΄Π΅ΡΠ°Π²Π°ΡΠ΅ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄ΡΠΊΠ΅ ΠΈΠ»ΠΈ ΡΠ°Π·Π½Π΅ ΠΊΠ°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠ΅ ΡΠΈΠ»ΡΡΠ°. Π’ΠΎ ΡΠΈΠ½ΠΈ Π΄Π° ΡΡ Π΄ΠΎΠ±ΠΈΡΠ΅Π½Π΅ ΡΡΠ΅ΠΊΠ²Π΅Π½ΡΠΈΡΡΠΊΠ΅ ΠΊΠ°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠ΅ ΡΠ»Π΅ΠΊΡΠΈΠ±ΠΈΠ»Π½ΠΈΡΠ΅ ΠΎΠ΄ Π°ΠΏΡΠΎΠΊΡΠΈΠΌΠ°ΡΠΈΡΠ° ΡΡΠ°Π½Π΄Π°ΡΠ΄Π½ΠΈΠΌ ΠΎΡΡΠΎΠ³ΠΎΠ½Π°Π»Π½ΠΈΠΌ ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠΈΠΌΠ° ΠΊΠ°ΠΎ ΡΡΠΎ ΡΡ Π°ΠΏΡΠΎΠΊΡΠΈΠΌΠ°ΡΠΈΡΠ΅ ΡΠ° ChebysheveΠ²ΠΈΠΌ ΠΈΠ»ΠΈ LegendrΠΎΠ² ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠΈΠΌΠ°. Π’ΡΠ΅Π±Π° Π½Π°ΠΏΠΎΠΌΠ΅Π½ΡΡΠΈ Π΄Π° ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π° Π°ΠΏΡΠΎΠΊΡΠΈΠΌΠ°ΡΠΈΡΠ° ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠΎΠ²Π°Π½ΠΈΠΌ-JacobijeΠ²ΠΈΠΌ
ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠΈΠΌΠ°, ΠΏΠΎΠ³ΠΎΠ΄Π½ΠΈΠΌ ΠΈΠ·Π±ΠΎΡΠΎΠΌ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΠ°ΡΠ° JacobijeΠ²ΠΈΡ
ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠ°, Π³Π΅Π½Π΅ΡΠΈΡΠ΅ ΠΌΠ½ΠΎΠ³Π΅ Π½Π°ΠΏΡΠ΅Π΄ ΠΏΠΎΠΌΠ΅Π½ΡΡΠ΅ Π°ΠΏΡΠΎΠΊΡΠΈΠΌΠ°ΡΠΈΡΠ΅ ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΡΠΊΠΈΡ
ΡΠΈΠ»ΡΠ°ΡΠ°, ΠΊΠ°ΠΎ Π½Π° ΠΏΡΠΈΠΌΠ΅Ρ: Butterworth-ΠΎΠ², Chebyshevev, Chebysh-Π΅Π²Π΅Π², Legendr-ΠΎΠ² ΠΈ ΡΠΈΡ
ΠΎΠ²Π΅ Π΄Π΅ΡΠΈΠ²Π°ΡΠ΅ ΠΊΠΎΡΠ΅ ΡΡ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠΈΠ»ΠΈ Ku ΠΈ Drubin, ΠΈΡΠ΄.
ΠΠΏΠΈΡΠ°Π½Π° ΡΠ΅Ρ
Π½ΠΈΠΊΠ° ΡΠΈΠ½ΡΠ΅Π·Π΅ Π°Π½Π»ΠΎΠ³Π½ΠΈΡ
ΡΠΈΠ»ΡΠ°ΡΠ° ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠΎΠ²Π°Π½ΠΈΠΌ JacobijeΠ²ΠΈΠΌ ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠΈΠΌΠ°, ΡΡΠΈΡΠ΅Π½Π° ΡΠ΅ ΡΠΎΡ Π΅ΡΠΈΠΊΠ°ΡΠ½ΠΈΡΠΎΠΌ Π΄ΠΎΠ΄Π°Π²ΡΠ΅ΠΌ ΠΊΠΎΠ½Π°ΡΠ½ΠΈΡ
Π½ΡΠ»Π° ΠΏΡΠ΅Π½ΠΎΡΠ° Ρ ΠΏΡΠ΅Π½ΠΎΡΠ½Ρ ΡΡΠ½ΠΊΡΠΈΡΡ ΡΠΈΠ»ΡΡΠ°. ΠΠ°ΠΎ ΡΡΠΎ ΡΠ΅ Π΄ΠΎΠ±ΡΠΎ ΠΏΠΎΠ·Π½Π°ΡΠΎ, ΠΊΠΎΠ½Π°ΡΠ½Π΅ Π½ΡΠ»Π΅ ΠΏΡΠ΅Π½ΠΎΡΠ° Π½Π° ΡΠ΅Π°Π»Π½ΠΈΠΌ ΡΡΠ΅ΠΊΠ²Π΅Π½ΡΠΈΡΠ°ΠΌΠ°, ΡΡ. Π½Π° ΠΈΠΌΠ°Π³ΠΈΠ½Π°ΡΠ½ΠΎΡ ΠΎΡΠΈ, Π½Π΅ΠΌΠ°ΡΡ ΡΡΠΈΡΠ°ΡΠ° Π½Π° ΡΠ°Π·Π½Ρ ΠΊΠ°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΡ ΡΠΈΠ»ΡΡΠ°. ΠΠ΅ΡΡΡΠΈΠΌ ΠΎΠ½Π΅ ΡΠ΅ ΠΌΠΎΠ³Ρ ΡΠ°ΠΊΠΎ ΠΎΠ΄ΡΠ΅Π΄ΠΈΡΠΈ Π΄Π° ΠΊΠ°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠ° ΡΠ»Π°Π±ΡΠ΅ΡΠ° ΠΈΠΌΠ° ChebyshΠ΅Π²Π΅Π² ΠΊΠ°ΡΠ°ΠΊΡΠ΅Ρ Ρ Π½Π΅ΠΏΡΠΎΠΏΡΡΠ½ΠΎΠΌ ΠΎΠΏΡΠ΅Π³Ρ.
ΠΠ°Π²Π΅Π΄Π΅Π½ΠΈ ΡΡ ΠΏΠΎΠ΄Π°ΡΠΈ ΠΎ ΠΏΠΎΠ»ΠΎΠΆΠ°ΡΡ ΠΏΠΎΠ»ΠΎΠ²Π° ΠΎΠ²Π΅ ΠΊΠ»Π°ΡΠ΅ ΡΠΈΠ»ΡΠ°ΡΠ° Ρ s-ΡΠ°Π²Π½ΠΈ Π·Π° ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΠ°Ρ JacobijeΠ² ΠΈΡ
ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠ°, ΠΊΠΎΡΠΈ Π΄Π°ΡΡ ΠΏΡΠΈΠ±Π»ΠΈΠΆΠ½ΠΎ ΠΌΠΎΠ½ΠΎΡΠΎΠ½Ρ Π°ΠΌΠΏΠ»ΠΈΡΡΠ΄ΡΠΊΡ ΠΊΠ°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΡ Π·Π° ΡΡΠ΅ΠΏΠ΅Π½ ΡΠΈΠ»ΡΡΠ° ΠΎΠ΄ ΡΡΠΈ Π΄ΠΎ Π΄Π΅ΡΠ΅Ρ. ΠΠ·Π²ΡΡΠ΅Π½ΠΎ ΡΠ΅ Π΄Π΅ΡΠ°ΡΠ½ΠΎ ΠΏΠΎΡΡΠ΅ΡΠ΅ Π΄ΠΎΠ±ΠΈΡΠ΅Π½ΠΈΡ
ΡΠ΅Π·ΡΠ»ΡΠ°ΡΠ° ΡΠ° ΠΏΠΎΠ·Π½Π°ΡΠΈΠΌ ΠΊΡΠΈΡΠΈΡΠ½ΠΎ ΠΌΠΎΠ½ΠΎΡΠΎΠ½ΠΈΠΌ ΠΏΡΠ΅Π½ΠΎΡΠ½ΠΈΠΌ ΡΡΠ½ΠΊΡΠΈΡΠ°ΠΌΠ°, ΠΈ ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ ΡΠ΅ Π΄Π° ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π° ΠΊΠ»Π°ΡΠ° ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠ° Π½ΡΠ΄ΠΈ ΠΈ Π±ΠΎΡΠ° ΡΠ΅ΡΠ΅ΡΠ° ΠΎΠ΄ ΡΡΠ°Π½Π΄Π°ΡΠ΄Π½ΠΈΡ
Π°ΠΏΡΠΎΠΊΡΠΈΠΌΠ°ΡΠΈΡΠ°.
ΠΠ° ΠΊΡΠ°ΡΡ ΠΎΠ²Π΅ Π³Π»Π°Π²Π΅ ΠΈΠ·Π²ΡΡΠ΅Π½ΠΎ ΡΠ΅ ΠΈ ΠΏΠΎΡΠ΅ΡΠ΅ΡΠ΅ Π½ΠΎΠ²Π΅ ΠΊΠ»Π°ΡΠ΅ ΡΠΈΠ»ΡΠ°ΡΠ° ΡΠ° ΠΊΠΎΠ½Π°ΡΠ½ΠΈΠΌ Π½ΡΠ»Π°ΠΌΠ° ΠΏΡΠ΅Π½ΠΎΡΠ° ΠΈ ΠΈΠ½Π²Π΅ΡΠ·Π½ΠΎΠ³ Chebyshevev ΡΠΈΠ»ΡΡΠ°. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ ΡΠ΅ Π΄Π° ΡΠΈΠ½ΡΠ΅Π·Π° ΡΠΈΠ»ΡΠ°ΡΠ° ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠΎΠ²Π°Π½ΠΈΠΌ JacobijeΠ²ΠΈΠΌ ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠΈΠΌΠ° ΡΠ° ΠΊΠΎΠ½Π°ΡΠ½ΠΈΠΌ Π½ΡΠ»Π°ΠΌΠ° ΠΏΡΠ΅Π½ΠΎΡΠ° Π½ΡΠ΄ΠΈ Π±ΠΎΡΠ΅ ΠΏΠ΅ΡΡΠΎΡΠΌΠ°Π½ΡΠ΅ ΠΎΠ΄ ΠΈΠ½Π²Π΅ΡΠ·Π½ΠΈΡ
Chebyshevevih ΡΠΈΠ»ΡΠ°ΡΠ°.
Π£ ΡΡΠ΅ΡΠ΅ΠΌ ΠΏΠΎΠ³Π»Π°Π²ΡΡ ΠΎΠΏΠΈΡΠ°Π½Π° ΡΠ΅ Π½ΠΎΠ²Π° ΠΊΠ»Π°ΡΠ° ΠΏΡΠ΅Π½ΠΎΡΠ½ΠΈΡ
ΡΡΠ½ΠΊΡΠΈΡΠ° Π·Π° ΡΠΈΠ½ΡΠ΅Π·Ρ Π»Π°Π½ΡΠ°Π½ΠΈΡ
ΡΠΈΠ»ΡΠ°ΡΠ°. ΠΠ²Π΅ Π»Π°Π½ΡΠ°Π½Π΅ ΡΡΠ½ΠΊΡΠΈΡΠ΅, Π½Π°Π·Π²Π°Π½Π΅ ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠΎΠ²Π°Π½Π΅ Jacobijeve Π»Π°Π½ΡΠ°Π½Π΅ ΡΠΈΠ½ΠΊΡΠΈΡΠ΅ (mJCF),Π΄ΠΎΠ±ΠΈΡΠ΅Π½Π΅ ΡΡ ΠΊΠ°ΠΎ ΠΏΡΠΎΠΈΠ·Π²ΠΎΠ΄ ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠΎΠ²Π°Π½ΠΈΡ
JacobijevΠΈΡ
ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠ° Π½ΠΈΠΆΠ΅Π³ ΡΡΠ΅ΠΏΠ΅Π½Π°, Π½Π°Π·Π²Π°Π½Π΅ seed ΡΡΠ½ΠΊΡΠΈΡΠ΅. ΠΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΡΠ° ΠΏΡΠ΅Π½ΠΎΡΠ½Π΅ ΡΡΠ½ΠΊΡΠΈΡΠ΅ ΡΠ΅ ΠΌΠΎΠΆΠ΅ Π·Π°Π²ΡΡΠΈΡΠΈ ΡΠ°ΠΊΠΎ Π΄Π° ΡΠ²Π΅ seed ΡΡΠ½ΠΊΡΠΈΡΠ΅ Π±ΡΠ΄Ρ ΡΠ° ΠΈΡΡΠΈΠΌ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈΠΌΠ°. Π£ ΡΠΎΠΌ ΡΠ»ΡΡΠ°ΡΡ Ρ Chebysheveve Π»Π°Π½ΡΠ°Π½Π΅ ΡΡΠ½ΠΊΡΠΈΡΠ΅ (CCF) ΠΈ LegendrΠΎΠ²e Π»Π°Π½ΡΠ°Π½Π΅ ΡΡΠ½ΠΊΠΈΡΠ΅ (LCF) ΡΡ ΡΠΏΠ΅ΡΠΈΡΠ°Π»Π½ΠΈ ΡΠ»ΡΡΠ°ΡΠ΅Π²ΠΈ ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠΎΠ²Π°Π½ΠΈΡ
JacobijevΠΈx Π»Π°Π½ΡΠ°Π½ΠΈΡ
ΡΡΠ½ΠΊΡΠΈΡΠ°. ΠΠΎΡΠΈ ΡΠ΅Π·ΡΠ»ΡΠ°ΡΠΈ ΡΠ΅ ΠΌΠΎΠ³Ρ Π΄ΠΎΠ±ΠΈΡΠΈ Π°ΠΊΠΎ ΡΠ΅ Π·Π° Π·Π°Π΄Π°ΡΠΈ ΡΡΠ΅ΠΏΠ΅Π½ ΡΠΈΠ»ΡΡΠ°, ΠΏΠΎΡΠ΅Π΄ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΠΈΡΠ΅ Π±ΡΠΎΡΠ° seed ΡΡΠ½ΠΊΡΠΈΡΠ°, ΠΎΠΏΡΠΈΠΌΠΈΠ·ΠΈΡΠ° ΡΠ΅ ΠΈ ΡΠ²Π°ΠΊΠ° seed ΡΡΠ½ΠΊΡΠΈΡΠ° ΠΊΠΎΡΠ° ΠΌΠΎΠΆΠ΅ Π΄Π° ΠΈΠΌΠ° ΡΠ°Π·Π»ΠΈΡΠΈΡΠ΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ΅ JacobijevΠΈΡ
ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΠ°. Π£ ΡΠΎΠΌ ΡΠ»ΡΡΠ°ΡΡ ΡΠ΅ Π±ΡΠΎΡ ΠΌΠΎΠ³ΡΡΠΈΡ
ΠΊΠΎΠΌΠ±ΠΈΠ½Π°ΡΠΈΡΠ° Π²Π΅Π»ΠΈΠΊΠΈ ΠΏΠ° ΡΠ΅ ΠΏΠΎΠ³ΠΎΠ΄Π½ΠΎ Π½Π°ΡΠΏΡΠ΅ ΠΈΠ·Π²ΡΡΠΈΡΠΈ ΠΎΠΏΡΠΈΠΌΠΈΠ·Π°ΡΠΈΡΡ ΡΠ° ΠΈΡΡΠΈΠΌ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈΠΌΠ°, Π° Π·Π°ΡΠΈΠΌ ΠΎΠ΄Π°Π±ΡΠ°ΡΠΈ ΡΠ΅Π΄Π½Ρ seed ΡΡΠ½ΠΊΡΠΈΡΡ ΠΊΠΎΡΠΎΠΌ ΡΠ΅ ΡΠ΅ ΠΈΠ·Π²ΡΡΠΈΡΠΈ Π½Π°ΠΊΠ½Π°Π΄Π½ΠΎ ΠΏΠΎΠ΄Π΅ΡΠ°Π²Π°ΡΠ΅ Π½Π΅ΠΊΠ΅ ΠΎΠ΄ ΠΊΠ°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠ° Ρ ΡΡΡΠ°ΡΠ΅Π½ΠΎΠΌ ΠΈΠ»ΠΈ ΠΏΡΠ΅Π»Π°Π·Π½ΠΎΠΌ ΡΡΠ°ΡΡ. ΠΠ·Π»Π°Π³Π°ΡΠ° Ρ ΡΠ΅ΡΠ²ΡΡΠΎΠΌ ΠΏΠΎΠ³Π»Π°Π²ΡΡ ΠΎΠ΄Π½ΠΎΡΠ΅ ΡΠ΅ Π½Π° ΡΠΈΠ½ΡΠ΅Π·Ρ ΠΏΠΎΠ»ΠΈΠ½ΠΎΠΌΡΠΊΠΈΡ
Π»Π°ΡΠ°Π½ΠΈΡ
ΡΠΈΠ»ΡΠ°ΡΠ°. ΠΠΎΡΠ΅Π±Π½Π° ΠΏΠ°ΠΆΡΠ° ΡΠ΅ ΠΏΠΎΠΊΠ»ΠΎΡΠ΅Π½Π° Π»Π°Π½ΡΠ°Π½ΠΈΠΌ ΡΠΈΠ»ΡΡΠΈΠΌ ΡΠ° Π΄Π²Π΅ seed ΡΡΠ½ΠΊΠΈΡΠ΅.Π€Π°ΠΊΡΠΎΡ Π΄ΠΎΠ±ΡΠΎΡΠ΅ ΠΊΠΎΡΡΠ³ΠΎΠ²Π°Π½ΠΎ ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΠΎΠ³ ΠΏΠ°ΡΠ° ΠΏΠΎΠ»ΠΎΠ²Π°, ΡΠ°ΠΊΡΠΎΡ Π½Π°Π³ΠΈΠ±Π° ΠΈ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»Π½Π° Π²ΡΠ΅Π΄Π½ΠΎΡΡ ΠΏΠΎΠ²ΡΠ°ΡΠ½ΠΈΡ
Π³ΡΠ±ΠΈΡΠ°ΠΊΠ° ΡΡ ΠΊΠΎΡΠΈΡΡΠ΅Π½ΠΈ Π·Π° ΠΏΠΎΡΠ΅ΡΠ΅ΡΠ΅ ΠΏΡΠ΅Π½ΠΎΡΠ½ΠΈΡ
ΡΡΠ½ΠΊΡΠΈΡΠ°. Π€ΡΠ½ΠΊΡΠΈΡΠ΅ ΡΠΈΡΠ° ΡΡ ΠΏΠΎΠ²ΡΠ°ΡΠ½ΠΈ Π³ΡΠ±ΠΈΡΠΈ. ΠΠ° ΠΏΡΠΈΠΌΠ΅ΡΠΈΠΌΠ° ΠΏΡΠ΅Π½ΠΎΡΠ½ΠΈΡ
ΡΡΠ½ΠΊΡΠΈΡΠ° ΡΠ΅Π΄ΠΌΠΎΠ³, ΠΎΡΠΌΠΎΠ³, Π΄Π΅Π²Π΅ΡΠΎΠ³ ΠΈ Π΄Π΅ΡΠ΅ΡΠΎΠ³ ΡΠ΅Π΄Π° Π°Π½Π°Π»ΠΈΠ·ΠΈΡΠ°Π½ΠΈ ΡΡ ΡΠ΅Π°Π·ΡΠ»ΡΠ°ΡΠΈ Π°ΠΏΡΠΎΠΊΡΠΈΠΌΠ°ΡΠΈΡΠ΅. ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ ΡΠ΅ Π΄Π° ΡΠ΅ ΡΠ΅Π΄ΡΠΊΡΠΈΡΠ° ΠΏΠΎΠ²ΡΠ°ΡΠ½ΠΎΠ³ ΡΠ»Π°Π±ΡΠ΅ΡΠ° ΠΌΠΎΠΆΠ΅ ΠΎΡΡΠ²Π°ΡΠΈΡΠΈ ΠΏΡΠ΅Π½ΠΎΡΠ½ΠΈΠΌ ΡΡΠ½ΠΊΡΠΈΡΠ°ΠΌΠ° Π²ΠΈΡΠ΅Π³ ΡΠ΅Π΄Π° Π±Π΅Π· Π²Π΅Π»ΠΈΠΊΠ΅ ΠΏΡΠΎΠΌΠ΅Π½Π΅ Q-ΡΠ°ΠΊΡΠΎΡΠ° ΠΏΠΎΠ»Π° ΠΈ ΠΊΠΎΠ΅ΡΠΈΡΠΈΡΠ΅Π½ΡΠ° Π½Π°Π³ΠΈΠ±Π°. ΠΠ²Π° ΡΠ΅Ρ
Π½ΠΈΠΊΠ° ΡΠ΅ ΠΏΡΠ²ΠΈ ΠΏΡΡ ΠΏΡΠΈΠΌΠ΅ΡΠ΅Π½Π° Π΄Π°Π²Π½Π΅ 1967 Π·Π° ΡΠ΅Π΄ΡΠΊΡΠΈΡΡ Q-ΡΠ°ΠΊΡΠΎΡΠ° ΠΊΡΠΈΡΠΈΡΠ½ΠΎΠ³ ΠΏΠ°ΡΠ° ΠΏΠΎΠ»ΠΎΠ²Π°. ΠΠΎΠ½Π°ΡΠ½ΠΎ, ΠΈΠ·Π»Π°Π³Π°ΡΠ° Ρ ΠΏΠ΅ΡΠΎΡ Π³Π»Π°Π²ΠΈ ΡΠ΅ ΠΎΠ΄Π½ΠΎΡΠ΅ Π½Π° ΠΏΠ°ΡΠΈΠ²Π½Ρ LC Π»Π΅ΡΠ²ΠΈΡΠ°ΡΡΡ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΡΡ Π»Π°Π½ΡΠ°Π½ΠΈΡ
ΡΠΈΠ»ΡΠ°ΡΠ°. ΠΠΎΡΠ»Π΅Π΄ΡΠΈ ΠΊΠΎΡΠ°ΠΊ Ρ ΠΏΡΠΎΡΠ΅ΠΊΡΠΎΠ²Π°ΡΡ ΡΠΈΠ»ΡΠ°ΡΠ° ΡΠ΅ΡΡΠ΅ ΡΠΎΡΠΌΠΈΡΠ°ΡΠ΅ ΠΏΡΠΎΡΠΎΡΠΈΠΏΠ° Π΅Π»Π΅ΠΊΡΡΠΈΡΠ½ΠΎΠ³ ΠΊΠΎΠ»Π° ΠΊΠΎΡΠ΅ ΡΠ»ΡΠΆΠΈ ΠΊΠ°ΠΎ ΠΎΡΠ½ΠΎΠ²Π° Π·Π° ΡΠΈΠ·ΠΈΡΠΊΡ ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΡΡ (ΠΈΠΌΠΏΠ»Π΅ΠΌΠ΅Π½ΡΠ°ΡΠΈΡΡ) ΡΠΈΠ»ΡΡΠ°. ΠΠ°ΠΈΠΌΠ΅, ΡΠ΅Π°Π»ΠΈΠ·Π°ΠΈΡΡΠ° Π½ΠΈΡΠΊΠΎΠΏΡΠΎΠΏΡΡΠ½ΠΈΡ
ΠΏΡΠΎΡΠΎΡΠΈΠΏΠΎΠ²Π° ΡΠΈΠ»ΡΠ°ΡΠ° Π·Π°ΡΠ½ΠΎΠ²Π½Π° ΡΠ΅ Π½Π° Π΅Π»Π΅ΠΌΠ΅Π½ΡΠΈΠΌΠ° ΡΠ° ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠΈΡΠ°Π½ΠΈΠΌ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈΠΌΠ° Π΄Π²ΠΎΠΏΡΠΈΡΡΡΠΏΠ½Π΅ ΠΏΠ°ΡΠΈΠ²Π½Π΅ Π»Π΅ΡΠ²ΠΈΡΠ°ΡΡΠ΅ LC ΠΌΡΠ΅ΠΆΠ΅. Π€ΠΈΠ»ΡΠ°Ρ ΡΠ΅ ΠΏΠΎΠ±ΡΡΡΡΠ΅ ΡΠ΅Π°Π»Π½ΠΈΠΌ Π³Π΅Π½Π΅ΡΠ°ΡΠΎΡΠΎΠΌ ΠΊΠΎΡΠΈ ΠΈΠΌΠ° ΡΠ½ΡΡΡΠ°ΡΡΡ ΠΎΡΠΏΠΎΡΠ½ΠΎΡΡ, Π° Π½Π° Π΄ΡΡΠ³ΠΎΠΌ ΠΏΡΠΈΡΡΡΠΏΡ Π·Π°ΡΠ²ΠΎΡΠ΅Π½ ΡΠ΅ ΠΎΡΠΏΠΎΡΠ½ΠΈΠΊΠΎΠΌ. Π£ΠΏΡΠ°Π²ΠΎ ΠΎΠ²Π΅ ΠΊΠΎΠ½ΡΠΈΠ³ΡΡΠ°ΡΠΈΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²ΡΠ°ΡΡ Π²Π΅Π·Ρ ΠΈΠ·ΠΌΠ΅ΡΡ ΡΠΈΠ»ΡΠ°ΡΡΠΊΠ΅ ΡΡΠ½ΠΊΡΠΈΡΠ΅ ΠΈ ΡΠΈΠ·ΠΈΡΠΊΠ΅ ΡΠ΅Π°Π»ΠΈΠ·Π°ΠΈΡΠ΅ ΡΠΈΠ»ΡΡΠ°.
ΠΠΎΡΠΌΠ°ΡΡΠ°ΡΡ ΡΠ΅ ΠΏΡΠΎΡΠΎΡΠΈΠΏΡΠΊΠΈ ΡΠΈΠ»ΡΠ°Ρ ΠΏΡΠΎΠΏΡΡΠ½ΠΈΠΊ Π½ΠΈΡΠΊΠΈΡ
ΡΡΠ΅ΠΊΠ²Π΅Π½ΡΠΈΡΠ° ΠΈ ΡΠΈΠ»ΡΠ°Ρ ΠΏΡΠΎΠΏΡΡΠ½ΠΈΠΊ ΠΎΠΏΡΠ΅Π³Π° ΡΡΠ΅ΠΊΠ²Π΅Π½ΡΠΈΡΠ° ΠΈ ΡΠΈΡ
ΠΎΠ²Π° ΠΈΠΌΠΏΠ»Π΅ΠΌΠ΅Π½ΡΠ°ΡΡΠ° ΠΏΠΎΠΌΠΎΡΡ Π΅Π»Π΅ΠΌΠ΅Π½Π°ΡΠ° ΡΠ° ΠΊΠΎΠ½Π΅Π½ΡΡΠΈΡΠ°Π½ΠΈΠΌ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΠ°ΡΠΈΠΌΠ°. ΠΠΎΡΠ΅Π±Π½Π° ΠΏΠ°ΠΆΡΠ° ΡΠ΅ ΠΏΠΎΡΠ²Π΅ΡΠ΅Π½Π° ΡΠ΅Π°Π»ΠΈΠ·Π°ΡΠΈΡΠΈ Π»Π°Π½ΡΠ°Π½ΠΎΠ³ ΡΠΈΠ»ΡΡΠ° ΠΏΡΠΎΠΏΡΡΠ½ΠΈΠΊΠ° Π½ΠΈΡΠΊΠΈΡ
ΡΡΠ΅ΠΊΠ²Π΅Π½ΡΠΈΡΠ° Π·Π°ΡΠ½ΠΎΠ²Π°Π½ΠΎΠ³ Π½Π° ΠΊΠ°ΡΠΊΠ°Π΄ΠΈ ΡΠ΅ΠΊΡΠΈΡΠ° Π²ΠΎΠ΄ΠΎΠ²Π°
A Search for Cosmic Microwave Background Anisotropies on Arcminute Scales with Bolocam
We have surveyed two science fields totaling one square degree with Bolocam
at 2.1 mm to search for secondary CMB anisotropies caused by the Sunyaev-
Zel'dovich effect (SZE). The fields are in the Lynx and Subaru/XMM SDS1 fields.
Our survey is sensitive to angular scales with an effective angular multipole
of l_eff = 5700 with FWHM_l = 2800 and has an angular resolution of 60
arcseconds FWHM. Our data provide no evidence for anisotropy. We are able to
constrain the level of total astronomical anisotropy, modeled as a flat
bandpower in C_l, with frequentist 68%, 90%, and 95% CL upper limits of 590,
760, and 830 uKCMB^2. We statistically subtract the known contribution from
primary CMB anisotropy, including cosmic variance, to obtain constraints on the
SZE anisotropy contribution. Now including flux calibration uncertainty, our
frequentist 68%, 90% and 95% CL upper limits on a flat bandpower in C_l are
690, 960, and 1000 uKCMB^2. When we instead employ the analytic spectrum
suggested by Komatsu and Seljak (2002), and account for the non-Gaussianity of
the SZE anisotropy signal, we obtain upper limits on the average amplitude of
their spectrum weighted by our transfer function of 790, 1060, and 1080
uKCMB^2. We obtain a 90% CL upper limit on sigma8, which normalizes the power
spectrum of density fluctuations, of 1.57. These are the first constraints on
anisotropy and sigma8 from survey data at these angular scales at frequencies
near 150 GHz.Comment: 68 pages, 17 figures, 2 tables, accepted for publication in Ap