Inventors:
Wayne L. Weigle - Ellicott City MD
Edgar L. Fogle - Severna Park MD
Oscar M. Cromer - Baltimore MD
Larry C. Schafer - Glen Burnie MD
Assignee:
Westinghouse Electric Corp. - Pittsburgh PA
International Classification:
G01S 744
Abstract:
In a radar system such as Doppler radar, clutter is eliminated without a requirement for somewhat sensitive frequency spectrum positioning. Processed returns are integrated over different halflook periods, where a look period is a period of constant pulse repetition frequency, and multiplexed into a postprocessor. The postprocessor measures the presence of clutter, and provides a blanking signal for clutter returns during portions of an operating cycle corresponding to clutter peaks.