Adjustment for Mismatch of Radio-Receiving Channels in Distance-Measuring Difference Systems

Abstract

Problems that arise in estimation of the mutual delays of signals in distance-measuring difference processing are considered. Based on field tests of similar radio-receiving devices, it is shown that mismatch of the receiving channels may lead to errors of up to several dozen nanoseconds and, as a consequence, significant errors in determining the location of sources of radio emission. A method of adjustment that makes it possible to reduce the error in estimation of delays down to 10 nsec is proposed and experimentally verified.