Approach to improve pointing accuracy of antenna systems with offset reflector and feed configuration

摘要

Systems, methods, and apparatus for calibration for an offset antenna are disclosed. In one or more embodiments, the disclosed method involves calculating an estimated gimbal angle between the offset antenna and at least one target. Also, the method involves transmitting, by at least one target, at least one signal; and receiving, by the offset antenna, at least one signal. The method further involves pointing the offset antenna to an optimum gimbal angle to maximize received signal power. Additionally, the method involves comparing the optimum gimbal angle with the estimated gimbal angle to determine a difference in the gimbal angles. Also, the method involves calculating a bus, reflector, and/or feed error estimate by using the difference in the gimbal angles. Further, the method involves determining an azimuth and/or elevation correction for bus, reflector, and/or feed errors by using the bus, reflector, and/or feed error estimate.