SU143435A1 - The method of suppressing impulse noise when receiving amplitude-modulated signals - Google Patents

The method of suppressing impulse noise when receiving amplitude-modulated signals

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Publication number
SU143435A1
SU143435A1 SU692305A SU692305A SU143435A1 SU 143435 A1 SU143435 A1 SU 143435A1 SU 692305 A SU692305 A SU 692305A SU 692305 A SU692305 A SU 692305A SU 143435 A1 SU143435 A1 SU 143435A1
Authority
SU
USSR - Soviet Union
Prior art keywords
impulse noise
modulated signals
amplitude
suppressing impulse
receiving amplitude
Prior art date
Application number
SU692305A
Other languages
Russian (ru)
Inventor
Д.В. Агеев
В.Ф. Рябков
бков В.Ф. Р
Original Assignee
Д.В. Агеев
бков В.Ф. Р
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Д.В. Агеев, бков В.Ф. Р filed Critical Д.В. Агеев
Priority to SU692305A priority Critical patent/SU143435A1/en
Application granted granted Critical
Publication of SU143435A1 publication Critical patent/SU143435A1/en

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Description

Известен компенсационный метод подавлени  OMnyvTbCHbix помех.The OMnyvTbCHbix interference cancellation compensation method is known.

Предлагаемый способ подавлени  импульсных помех при приеме амплитудно-модулированных сигналов отличаетс  тем, что дл  ловышени  эффективности подавлени  импульсной помехи входные высокочастотные контуры приемника расстраивают относительно частоты сигнала на половину полосы пропускани , а на выходе высокочастотной части сигнал и помеху складывают с гетеродинным напр жением, имеющим частоту, равную резонансной частоте контура. Суммы напр жени  сигнала и помехи и гетеродинного напр жени  подают на амплитудный и фазовый детекторы, выходные напр жени  которых дифференцируютс .The proposed method of suppressing impulse noise when receiving amplitude-modulated signals is characterized in that in order to catch the efficiency of suppressing impulse noise, the receiver high-frequency circuits frustrate the signal frequency by half of the passband, and at the output of the high-frequency part, the signal and noise are added to the heterodyne voltage having a frequency equal to the resonant frequency of the circuit. The sum of the signal voltage and noise and the heterodyne voltage are applied to amplitude and phase detectors, the output voltages of which are differentiated.

Полезный сигнал получают путем вычитани  напр жени , полученного перемножением выходного напр жени  амплитудного детектора на продифференцированное выходное напр жение фазового детектора , из напр жени , полученного перем«ожением выходного напр жени  фазового детектора на продифференцированное напр жение амплитудного детектора.A useful signal is obtained by subtracting the voltage obtained by multiplying the output voltage of the amplitude detector by the differentiated output voltage of the phase detector from the voltage obtained by overloading the output voltage of the phase detector by the differentiated voltage of the amplitude detector.

На чертеже показана функциональна  схема, по сн юща  описываемый способ.The drawing shows a functional diagram, explaining the described method.

По предлагаемому способу подавлени  импульсных помех при приеме телеграфных сигналов, модулированных по амплитуде, входной сигнал принимаетс  на приемник, высокочастотна  часть / которого расстроена относительно частотыпринимаемого сигнала на половину полосы пропускани  приемника. С выхода высокочастотной части приемника сигнал подаетс  на два канала, производ щих амплитудное и фазовое детектирование. Вследствие того, что высокочасто гный ,Ч1Г11ЯЛ проходит через контур, резонансна  частота которого не совпад.ст с частотой сигнала, последний получает модул цию по амплитуде и фа.е, что и дает возможность применить и амплитудный и фаAccording to the proposed method for suppressing impulse noise when receiving amplitude-modulated telegraph signals, the input signal is received at the receiver, the high-frequency part of which is upset about the frequency of the received signal by half the receiver bandwidth. From the output of the high-frequency part of the receiver, the signal is fed to two channels, producing amplitude and phase detection. Due to the fact that the high-frequency signal passes through the circuit, the resonant frequency of which does not coincide with the frequency of the signal, the latter receives amplitude and phase modulation, which makes it possible to apply both amplitude and phase

SU692305A 1961-01-06 1961-01-06 The method of suppressing impulse noise when receiving amplitude-modulated signals SU143435A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU692305A SU143435A1 (en) 1961-01-06 1961-01-06 The method of suppressing impulse noise when receiving amplitude-modulated signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU692305A SU143435A1 (en) 1961-01-06 1961-01-06 The method of suppressing impulse noise when receiving amplitude-modulated signals

Publications (1)

Publication Number Publication Date
SU143435A1 true SU143435A1 (en) 1961-11-30

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SU692305A SU143435A1 (en) 1961-01-06 1961-01-06 The method of suppressing impulse noise when receiving amplitude-modulated signals

Country Status (1)

Country Link
SU (1) SU143435A1 (en)

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