United States Government, as represented by the Secretary of the Navy - Arlington VA
International Classification:
G01S 13/04
US Classification:
342 27
Abstract:
A process is provided for analyzing a radar signal using CLEAN to identify an undetected target in sidelobes of a detected target. The process includes obtaining system impulse response data of a waveform for a point target having a signal data vector based on a convolution under conjugate transpose multiplied by a target amplitude vector plus a noise vector, estimating the target amplitude vector, and applying a CLEAN Deconvolver to remove the detected target from the data signal vector based on the estimate amplitude vector absent the detected target and an amplitude vector of an undetected target. The process further includes building a detected target vector with the amplitude estimate vector, setting to zero all elements of the detected target vector except at an initial time, and recomputing the amplitude estimate vector by a Reformulated CLEAN Detector.
Radar Saturating Clutter Mitigation By Waveform Selection
United States of America, as represented by the Secretary of the Navy - Arlington VA
International Classification:
G01S 7/40 G01S 13/78
Abstract:
A computer-implemented method is provided for maximizing surveillance volume in a radar system. This includes determining saturation range probability ; determining sensitivity probability f; calculating surveillance volume from multiplying the saturation range probability by the sensitivity probability as V=f; and adjusting the radar system to maximize the surveillance volume.
United States Government, as represented by the Secretary of the Navy - Arlington VA
International Classification:
G01S 7/292
Abstract:
A computer-implemented method is provided for filtering clutter from a radar signal received by an antenna. The method includes determining a transient clutter voltage at first and second times separated by a time interval, determining a clutter correlation for the time interval, and dividing a received signal correlation by the clutter correlation. In alternate embodiments, the clutter correlation can be combined with a noise correlation and the sum divided by the signal correlation.
Waveform Selection For Mitigation Of Radar Saturating Clutter
A computer-implemented method is provided for maximizing surveillance volume in a radar system. This includes determining saturation range probability ; determining sensitivity probability f; calculating surveillance volume from multiplying the saturation range probability by the sensitivity probability as V= f; and adjusting the radar system to maximize the surveillance volume.