High speed angle-to-target estimation for a multiple antenna system and method

摘要

A multiple beam receiving system provides an angle estimate to targets. The system tracks movements of the targets over time and generates calibration information. The system uses the calibration information to more accurately estimate angle-to-target. The multiple beam receiving system can be part of a monopulse or other radar system, a traffic collision avoidance system, or other electromagnetic sensor.

主权项

1. A multiple antenna lobe receiving system, comprising:
a processor; and a memory coupled to the processor and containing program instructions that, when executed by the processor, cause the multiple antenna lobe receiving system to receive multiple antenna lobe return data from two or more receive channels; and track movement of targets using the multiple antenna lobe return data over time; wherein the movement is used to provide system calibration data to correct mismatch errors associated with the multiple antenna lobe return data, and wherein an angle-to-target estimate for each target of the targets is provided without servoing an antenna to point to each target and wherein target movement as sensed by the multiple antenna lobe receiving system is compared to a linearized target movement model for each target of the targets to estimate the system calibration data.