Eigenvectors Method in Doppler Processing of Complex Signals

摘要

Among tasks of radar processing of complex signals leading place is occupied with a problem of boosting of radar resolution capability in mesured parameters. To those carry the time-delay of the signal, carrying the information on range up to the purpose, and the doppler increment of the frequency, describing value of radial component rate of the target. Time-frequency compression of complex signals as it is noted in a number of sources [1 - 3], is usually carried out by means of the multichannel circuit representing a ruler of matched filters, each of which is tuned on a signal with certain doppler frequencies. Detune of next doppler channels makes some value ΔF_D determining resolution capability of system. As is known, resolution capability of the matched algorithms is defined by physical properties of signals (duration and effective width of a spectrum), and also operational properties of the equipment, and is rather limited. In this point of view actual becomes problems of searching ways to boost resolution capability on frequency and time-delay.