SU1035536A1 - Method of measuring radio-transmitting device noise spectrum - Google Patents

Method of measuring radio-transmitting device noise spectrum Download PDF

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Publication number
SU1035536A1
SU1035536A1 SU823382447A SU3382447A SU1035536A1 SU 1035536 A1 SU1035536 A1 SU 1035536A1 SU 823382447 A SU823382447 A SU 823382447A SU 3382447 A SU3382447 A SU 3382447A SU 1035536 A1 SU1035536 A1 SU 1035536A1
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SU
USSR - Soviet Union
Prior art keywords
receiver
noise
measuring
frequency
radio
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SU823382447A
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Russian (ru)
Inventor
Феликс Евелевич Рейнштейн
Василий Константинович Муковников
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Предприятие П/Я Р-6120
Войсковая часть 60130
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Priority to SU823382447A priority Critical patent/SU1035536A1/en
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Publication of SU1035536A1 publication Critical patent/SU1035536A1/en

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Abstract

СПОСОБ ИЗМЕРЕНИЯ ШУМОВОГО СПЕКТРА РАДИОПЕРЕДАЮЩЕГО УСТРОЙСТВА, заключающийс  в определении за полосой блокировани  измерительного приемника при различных частотных отстройках от частоты несущей радиопереданидего устройства возрастани  шума на выходе измерительного приемника относительно собственного шума этого приемника на каждой из частот отстройки, отличающийс   тем, что, с целью повьшени  точности измерений измерений на частотах в пределах полосы блокировани  измерительного приемника производ т при каждой из частотных отстроек от частоты несущей радиопередающего устройства путем измерени  напр жени  на выходе измерительного приемника при наличии сигнала радиопередающего устройства, затем одновременно с сигналом радиопередающего устройства подают вспомогательный сигнал, имеющий частоту, равную частоте настройки измерительного приемника .и измен ют амплитуду напр жени  этого сигнала таким образом, чтобы среднеквадратичное значение напр жени  на выходе измерительного СО приемника превысило в V2 раз зафикси{ )ованиде ранее напр жение на с выходе измерительного приемника при отсутствии вспомогательного сигнала,A METHOD FOR MEASURING A NOISE SPECTRUM OF A RADIO TRANSMITTING DEVICE, which consists in determining the blocking band of a measuring receiver at different frequency offsets from the radio carrier frequency of the device that increases the noise at the output of the measuring receiver relative to the noise of this receiver at the same distance, it is with the same noise of this receiver which, the outfitting of this receiver with the noise of the receiver, would be out of the way of the receiver’s noise of the receiver, with the noise of the receiver, to go to the radio receiver with the noise of the receiver in the detuning frequency of the receiver to the noise of the receiver, with the noise from the radio receiver, the ratios of the receiver will be out of alignment with the receiver’s own noise on the receiver, with the noise from the frequency of the receiver will be out of alignment with the receiver’s own noise on the receiver, with the help of this receiver’s noise on the receiver’s outgoing noise relative to the receiver’s own noise on the receiver’s receiver, in terms of the frequency of the radio receiver, the distance between the receiver’s noise and the radio receiver measurements at frequencies within the blocking band of the measuring receiver are made at each of the frequencies x offsets from the carrier frequency of the radio transmitting device by measuring the voltage at the output of the measuring receiver in the presence of a signal from the radio transmitting device; then, simultaneously with the signal of the radio transmitting device, an auxiliary signal is given, having a frequency equal to the frequency of the measuring receiver; and changing the voltage amplitude of this signal in this way so that the rms value of the voltage at the output of the measuring receiver’s CO exceeds V2 times the voltage {) previously the output of the measuring receiver in the absence of an auxiliary signal,

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Claims (1)

СПОСОБ ИЗМЕРЕНИЯ ШУМОВОГО СПЕКТРА РАДИОПЕРЕДАЮЩЕГО УСТРОЙСТВА, заключающийся в определении за полосой блокирования измерительного приемника при различных частотных отстройках от частоты несущей радиопередающего устройства возрастания шума «а выходе измерительного приемника относительно собственного шума этого приемника на каждой из частот отстройки, отличающий с я тем, что, с целью повышения точности измерений измерений на частотах в пределах полосы блокирования измерительного приемника производят при каждой из частотных отстроек от частоты несущей радиопередающего устройства путем измерения напряже ния на выходе измерительного приемника при наличии сигнала радиопередающего устройства, затем одновремен но с сигналом радиопередающего устройства подают вспомогательный сигнал, имеющий частоту, равную частоте настройки измерительного приемника .и изменяют амплитуду напряжения этого сигнала таким образом, чтобы среднеквадратичное значение напряжения на выходе измерительного приемника превысило в Y2 раз зафиксированное ранее напряжение на выходе измерительного приемника при отсутствии вспомогательного сигнала.METHOD FOR MEASURING THE NOISE SPECTRUM OF A RADIO TRANSMISSION DEVICE, which consists in determining the noise increase behind the blocking band of the measuring receiver at various frequency offsets from the frequency of the carrier of the radio-transmitting device and the output of the measuring receiver relative to the intrinsic noise of this receiver at each of the off-set frequencies, which differs in that In order to improve the accuracy of measurement measurements at frequencies within the blocking band of the measuring receiver, it is performed at each of the frequency offsets. to the carrier frequency of the radio transmitting device by measuring the voltage at the output of the measuring receiver in the presence of a signal of the radio transmitting device, then simultaneously with the signal of the radio transmitting device, an auxiliary signal is provided having a frequency equal to the tuning frequency of the measuring receiver. And the voltage amplitude of this signal is changed so that the rms value of the voltage at the output of the measuring receiver exceeded Y2 times the previously recorded voltage at the output of the measuring receiver th receiver in the absence of the auxiliary signal. 00 сл СП 0000 cl SP 00 О) >O)>
SU823382447A 1982-01-08 1982-01-08 Method of measuring radio-transmitting device noise spectrum SU1035536A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU823382447A SU1035536A1 (en) 1982-01-08 1982-01-08 Method of measuring radio-transmitting device noise spectrum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU823382447A SU1035536A1 (en) 1982-01-08 1982-01-08 Method of measuring radio-transmitting device noise spectrum

Publications (1)

Publication Number Publication Date
SU1035536A1 true SU1035536A1 (en) 1983-08-15

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SU823382447A SU1035536A1 (en) 1982-01-08 1982-01-08 Method of measuring radio-transmitting device noise spectrum

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Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1. Передатчики морские однополосные. Методы измерений и испьатаний. ГОСТ 21895-76. М., Советское радио, 1977 (протртип). *

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