Accession Number : AD0718813

Title :   A Postdetection Method of Measuring Predetection RF Signal-to-Noise Ratio.

Descriptive Note : Final rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Blake,Lamont V.

Report Date : 07 JAN 1971

Pagination or Media Count : 21

Abstract : A method of determining the predetection signal-to-noise power ratio in a receiving system by measurement of average postdetection signal-plus-noise and noise-only voltages (DC output of the detector) is described. The principle has actually been known for many years, but does not seem to be well known or widely used, possibly because of some associated computational difficulties. Some digital-computer tabulated results are presented which remove these difficulties, and measurement techniques are discussed. The calculation of expected signal-to-noise ratio for radar and radio systems is briefly reviewed. (Author)

Descriptors :   (*SIGNAL-TO-NOISE RATIO, TEST METHODS), RADIO RECEIVERS, RADAR RECEIVERS, DEMODULATORS, RADIOFREQUENCY POWER, MEASUREMENT

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE