A METHOD FOR ESTIMATION OF MANY-DIMENSIONAL IMAGES WITH SUPER-RAYLEIGH RESOLUTION IN PROCESSING OF ECHO SIGNALS AT COHERENT SOUNDING

摘要

A new method called NOSE (nonorthogonal signals estimation) is suggested for assessment of many-dimensional (time-space-Doppler type) amplitude-phase images, particularly, multiple lumped targets. When using this method, the maximum possible resolving capacity of the radar system is limited only by the signal-to-noise ratio. An analytical expression of the correlation matrix of noise in image is deduced. The soundness of the method at typical signal-to-noise ratios is confirmed by the mathematical simulation method.