RU2480904C1 - Method for combined filtering and differential pulse-code modulation/demodulation of signals - Google Patents

Method for combined filtering and differential pulse-code modulation/demodulation of signals Download PDF

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Publication number
RU2480904C1
RU2480904C1 RU2012122670/08A RU2012122670A RU2480904C1 RU 2480904 C1 RU2480904 C1 RU 2480904C1 RU 2012122670/08 A RU2012122670/08 A RU 2012122670/08A RU 2012122670 A RU2012122670 A RU 2012122670A RU 2480904 C1 RU2480904 C1 RU 2480904C1
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Russia
Prior art keywords
estimate
information
time interval
extrapolated
information process
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RU2012122670/08A
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Russian (ru)
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Анна Валерьевна Хуторцева
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Анна Валерьевна Хуторцева
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Abstract

FIELD: information technology.
SUBSTANCE: error signal is generated as a result of averaging on each time interval the difference between an input signal and an extrapolated estimate of the information signal; error signals are quantised, encoded and restored after transmission thereof in a channel; for each time interval on the specified estimate of the information process, which corresponds to the beginning of said interval, an extrapolated estimate of the information process is generated, which varies in accordance with a law defined by the matriciant of that process; the extrapolated estimate of the information signal, which is a first component of the extrapolated estimate of the information process, is subtracted from the input signal; error signals are used for specification at the end of each time interval of the extrapolated estimate of the information process; at the receiving side for each time interval based on the specified estimate of the restored information process, which corresponds to the beginning of that interval, an extrapolated estimate of the restored information process is generated.
EFFECT: high noise-immunity.
5 dwg

Description

Текст описания приведен в факсимильном виде.

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Claims (1)

Способ совместной фильтрации и дифференциальной импульсно-кодовой модуляции-демодуляции сигналов, заключающийся в формировании сигналов ошибки как результата усреднения на каждом интервале времени [ti, ti+1], ti+1>ti, i=0, 1, 2, … разности между входным сигналом и экстраполируемой оценкой информационного сигнала, квантовании сигналов ошибки, их кодировании и восстановлении квантованных сигналов ошибки после передачи в канале, отличающийся тем, что для каждого интервала времени [ti, ti+1], ti+1>ti, i=0, 1, 2, … по уточненной оценке информационного процесса, соответствующей началу этого интервала, генерируют экстраполируемую оценку информационного процесса, меняющуюся в соответствии с законом, определяемым матрицантом этого процесса, экстраполируемую оценку информационного сигнала, представляющего из себя первую компоненту экстраполированной оценки информационного процесса, вычитают из входного сигнала, сигналы ошибки используют для уточнения в конце каждого интервала времени экстраполированной оценки информационного процесса, на приемной стороне для каждого интервала времени [ti, ti+1], i=0, 1, 2, … по уточненной оценке восстанавливаемого информационного процесса, соответствующей началу этого интервала, генерируют экстраполируемую оценку восстанавливаемого информационного процесса, меняющуюся в соответствии с законом, определяемым матрицантом этого процесса, в конце каждого интервала времени проводят уточнение этой оценки по восстановленным квантованным сигналам ошибки, оценка первой компоненты восстанавливаемого информационного процесса представляет из себя восстанавливаемый информационный сигнал. A method for joint filtering and differential pulse-code modulation-demodulation of signals, which consists in generating error signals as a result of averaging over each time interval [t i , t i + 1 ], t i + 1 > t i , i = 0, 1, 2 , ... the difference between the input signal and the extrapolated estimate of the information signal, quantization of error signals, their coding and restoration of quantized error signals after transmission in the channel, characterized in that for each time interval [t i , t i + 1 ], t i + 1 > t i, i = 0, 1, 2, ... for n refined estimation information The process corresponding to the beginning of this interval generates an extrapolated estimate of the information process, changing in accordance with the law determined by the matrix of this process, an extrapolated estimate of the information signal, which is the first component of the extrapolated estimate of the information process, is subtracted from the input signal, error signals are used to refine end of each time interval of the extrapolated evaluation of the information process, at the receiving side for each time interval ени [t i , t i + 1 ], i = 0, 1, 2, ... according to the updated estimate of the restored information process corresponding to the beginning of this interval, an extrapolated estimate of the restored information process is generated, changing in accordance with the law determined by the matrix of this process, at the end of each time interval, this estimate is refined using the reconstructed quantized error signals; the estimation of the first component of the reconstructed information process is a reconstructed information signal.
RU2012122670/08A 2012-06-01 2012-06-01 Method for combined filtering and differential pulse-code modulation/demodulation of signals RU2480904C1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2129737C1 (en) * 1994-02-17 1999-04-27 Моторола, Инк. Method for group signal encoding and device which implements said method
US20100052945A1 (en) * 1997-10-22 2010-03-04 Intelligent Technologies International, Inc. Vehicular Communication Arrangement and Method
RU2419171C2 (en) * 2005-07-22 2011-05-20 Франс Телеком Method to switch speed of bits transfer during audio coding with scaling of bit transfer speed and scaling of bandwidth
RU2446558C1 (en) * 2011-01-31 2012-03-27 Анна Валерьевна Хуторцева Method of differential pulse-code modulation-demodulation of signals

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2129737C1 (en) * 1994-02-17 1999-04-27 Моторола, Инк. Method for group signal encoding and device which implements said method
US20100052945A1 (en) * 1997-10-22 2010-03-04 Intelligent Technologies International, Inc. Vehicular Communication Arrangement and Method
RU2419171C2 (en) * 2005-07-22 2011-05-20 Франс Телеком Method to switch speed of bits transfer during audio coding with scaling of bit transfer speed and scaling of bandwidth
RU2446558C1 (en) * 2011-01-31 2012-03-27 Анна Валерьевна Хуторцева Method of differential pulse-code modulation-demodulation of signals

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