SU145631A1 - Method of compensating for strong impulse noise - Google Patents

Method of compensating for strong impulse noise

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Publication number
SU145631A1
SU145631A1 SU726616A SU726616A SU145631A1 SU 145631 A1 SU145631 A1 SU 145631A1 SU 726616 A SU726616 A SU 726616A SU 726616 A SU726616 A SU 726616A SU 145631 A1 SU145631 A1 SU 145631A1
Authority
SU
USSR - Soviet Union
Prior art keywords
frequency
compensating
impulse noise
strong impulse
signal
Prior art date
Application number
SU726616A
Other languages
Russian (ru)
Inventor
А.К. Лидих
Original Assignee
А.К. Лидих
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 А.К. Лидих filed Critical А.К. Лидих
Priority to SU726616A priority Critical patent/SU145631A1/en
Application granted granted Critical
Publication of SU145631A1 publication Critical patent/SU145631A1/en

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  • Noise Elimination (AREA)

Description

Известные способы компенсации сильных помех в приемнике ЧЛ сигналов со след щей настройкой, осуществл емой одновременной подачей управл ющего напр жени  на гетеродин и перестраиваемый фильтр промежуточной частоты, не обеспечивают достаточного ослаблени  мешающего действи  помехВ предлагаемом способе этот недостаток устранен подачей напр жени  с выхода частотного детектора на управл ющий элемент дополнительного фильтра промежуточной частотыНа чертеже приведена блок-схема, по сн юща  описываемый способ .Known methods for compensating strong interference in the receiver of a frequency signal with the following tuning performed by simultaneously applying a control voltage to the local oscillator and a tunable intermediate frequency filter do not sufficiently attenuate the disturbing effect of interference. In the proposed method, this disadvantage is eliminated by applying voltage control element of the additional intermediate frequency filter The drawing is a block diagram explaining the described method.

Приемник частотно-модулированных сигналов со след щей настройкой содержит усилитель / высокой частоты, смеситель 2, гетеродин 3, усилитель 4 промежуточной частоты, ограничитель 5, резонансные каскады 6, 7 усилител  промежуточной частоты с управл емой резонансной частотой, ограничитель 8, частотный детектор 9, цепь св зи 10 и усилитель // низкой частоты.The receiver of the frequency-modulated signals with the following tuning contains the amplifier / high frequency, mixer 2, local oscillator 3, amplifier 4 intermediate frequency, limiter 5, resonant cascades 6, 7 intermediate frequency amplifier with controlled resonant frequency, limiter 8, frequency detector 9, communication circuit 10 and low frequency amplifier.

Противофазное управление реактивными элементам /2, 13, которые , в свою очередь, управл ют резонансными частотами каскадов усилителей промежуточной частоты, осуществл ют с помои;ью фазОИнверсного каскада 14, а посто нную составл ющую сигнала выдел ют с ПОМОЩЬЮ фильтра J5- Подстройку частоты гетеродина 3 посто нной составл ющей сигнала, выдел емой с выхода симметричного частотного детектора 9 через фильтр J5, производ т посредством применени  реактивного элемента 16.The antiphase control of the reactive elements / 2, 13, which, in turn, control the resonant frequencies of the intermediate frequency amplifier stages, is carried out by means of a new phase-inverse stage 14, and the constant component of the signal is extracted with the help of filter J5-Heterodyne frequency adjustment The 3 constant signal component, extracted from the output of the symmetric frequency detector 9 through the filter J5, is produced by using the reactive element 16.

Посто нную составл ющую сигнала с выхода частотного детектора 9 подают одновременно дл  управлени  частотой гетеродина 3 в тракте промежуточной частоты. След щий компенсационный канал выполнен при помощи второго управл емого каскада, расстроенного относительно сигнала и включенного параллельно основному управThe constant component of the signal from the output of the frequency detector 9 is simultaneously supplied to control the frequency of the local oscillator 3 in the intermediate frequency path. The next compensation channel is made using the second controlled stage, which is frustrated with the signal and connected in parallel to the main control

SU726616A 1961-04-14 1961-04-14 Method of compensating for strong impulse noise SU145631A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU726616A SU145631A1 (en) 1961-04-14 1961-04-14 Method of compensating for strong impulse noise

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU726616A SU145631A1 (en) 1961-04-14 1961-04-14 Method of compensating for strong impulse noise

Publications (1)

Publication Number Publication Date
SU145631A1 true SU145631A1 (en) 1961-11-30

Family

ID=48301166

Family Applications (1)

Application Number Title Priority Date Filing Date
SU726616A SU145631A1 (en) 1961-04-14 1961-04-14 Method of compensating for strong impulse noise

Country Status (1)

Country Link
SU (1) SU145631A1 (en)

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