System and method for spectral generation in radar

A method of spectral generation for radar, said method comprising:

• a) generating a window that defines a plurality of range-doppler cells;
• b) calculating a covariance matrix estimate for a range-doppler cell of interest in said window from pre-processed range-doppler-sensor data, wherein said covariance matrix estimate is generated from covariance matrices calculated for at least a portion of said plurality of range-doppler cells within said window;
• and,
• c) calculating a high-resolution spectral vector based on a location matrix and a noise subspace matrix estimate, said noise subspace matrix estimate being derived from said covariance matrix estimate.

A noise suppression module for suppressing external interference in pre-processed radar data, said noise suppression module comprising:

• a) a first processing module, in communication with said pre-processed radar data for producing matched radar data;
• b) a second processing module, in communication with said pre-processed radar data for producing mis-matched radar data;
• c) an adaptive beamformer in communication with said processing modules for receiving a portion of matched radar data and a portion of mis-matched radar data, and for producing an estimate of external interference in said portion of matched radar data;
• and,
• d) a suppressor, in communication with said first processing module and said adaptive beamformer, for providing a portion of noise suppressed radar data by suppressing said estimate of external interference from said portion of matched radar data.

A method of suppressing external interference in pre-processed radar data, said method comprising:

• a) processing said pre-processed radar data to produce matched radar data;
• b) processing said pre-processed radar data to produce mis-matched radar data;
• c) selecting a portion of said matched radar data and a portion of said mis-matched radar data and performing adaptive beamforming to produce an estimate of the external interference in said portion of matched radar data;
• and,
• d) producing a portion of noise suppressed radar data by suppressing said estimate of external interference from said portion of matched radar data.