METHODS AND SYSTEMS FOR IDENTIFYING HIGH-QUALITY PHASE ANGLE MEASUREMENTS IN AN INTERFEROMETRIC RADAR SYSTEM

摘要

A method for determining a mechanical angle to a radar target utilizing a multiple antenna radar altimeter is described. The method comprises receiving radar return signals at the multiple antennas (202, 208), populating an ambiguity resolution matrix with the electrical phase angle computations, selecting a mechanical angle from the ambiguity resolution matrix that results in a least amount of variance from the electrical phase angle computations, and using at least one other variance calculation to determine a quality associated with the selected mechanical angle.