Ambiguity Problem of Digitized Multiple Frequency CW Ranging Radar Under Noisy Condition
Huangfu Kan · Dianzi xuebao · 2002
Digitized multiple frequency CW radar is a kind of new system radar.It can detect lots of targets and acquire different movement parameters as well.But it is hard to enlarge maximum unambiguous range while improving ranging accuracy at the same time.To deal with such a contradiction,stagger frequency differences are adopted,thus maximum unambiguous range can be enlarged greatly.The influences the noise may have on the ranging results are presented.Correct solutions for ambiguous range,the limitation for imput SNR,change in ranging accuracy and restriction to staggering parameters are discussed.Simulation results verify the conclusion,which could be a groundwork to future research.