Radar Detection of Range Migrating Targets

A computer-implemented method for detecting a target amidst clutter by a radar system able to transmit an electromagnetic signal, receive first and second echoes respectively from said target and said clutter, and process said echoes, said method comprising:

• determining signal convolution matrix for the target and a target return phase;
• determining clutter amplitude by spatial correlation matrix of clutter;
• determining clutter correlation matrix;
• determining receive noise power;
• querying whether the clutter moves as a motion condition if satisfied and as a stationary condition otherwise;
• calculating signal convolution matrix and target return phase from said signal convolution matrix and said target return phase for target motion;
• querying whether the target has range migration as a migration condition if satisfied and as a non-migration condition otherwise;
• and
• forming a target detector for the radar system, wherein
• for said motion condition further including:
• calculating signal convolution matrix from clutter motion,
• calculating clutter range migration matrix from said clutter motion, and
• calculating interference correlation matrix,
• for said stationary condition further including:
• calculating said interference correlation, and
• for said migration condition further including:
• calculating range migration matrix from said target motion