Patent ID: 6123287
Filing Date: 2000-09-26
Classification: F41G

Abstract:
A missile tracking system for developing tracking error signals for controlling said missile comprising:scanning means for scanning in azimuth a field of view including a missile;a line of a plurality of detectors positioned in elevation to receive energy from the scanned field of view, a selected first sequential number of said detectors receiving energy from a high resolution elevation tracking field of said field of view and a second number of sequential detectors receiving energy from a low resolution elevation field of said field of view;a plurality of combining means each coupled to selected groups of said second number of detectors, each combining means having an output terminal;multiplexing means coupled to the output terminals of each of said plurality of combining means and to said first number of detectors;elevation error signal forming means coupled to said multiplexing means for providing first elevation error signals varying linearly as a function of detector position in response to said first number of detectors and for providing second elevation error signals varying nonlinearly as a function of the position of the groups of detectors coupled to each combining means; andazimuth error signal forming means coupled to said scanning means and to said multiplexing means for providing azimuth error signals.