FIELD: radiolocation, measurement of coordinates of range and velocity of pulse-Doppler radars. SUBSTANCE: claimed procedure is based on emission of pulse bursts with repetition frequency varying from burst to burst and taken from set of repetition frequencies chosen beforehand, on measurement of ambiguous values of time of delay and of Doppler shift of frequency of signals obtained on receipt of each pulse burst and on determination of ambiguous coordinates of targets by these values. Repetition frequencies Fi and Fk are selected by pairs which are related as relatively prime numbers m and n, obtained ambiguous coordinates are presented in corresponding measurement units: Doppler frequency for given pair is presented in units Fi/m and time of delay is given in units 1/(Fi.n), fractional parts of corresponding coordinates are compared with one and same repetition frequencies for all ambiguous readings. If fractional parts coincide with accuracy of measurement errors preset in advance these coordinates are classified as coordinates belonging to one and same target. On completion of in-pair comparison of data obtained on all repetition frequencies coordinates of each target are collected in separate group and ambiguous coordinates of each target are determined. EFFECT: potential for measurement of coordinates of range and velocity of several targets in presence of hampering signals. 1 dwg
Authors
Dates
2003-06-10—Published
2001-10-25—Filed