Radar Altimeter Phase a Study: Signal Processor Simulation

摘要

The locking transients and sensitivity of the signal processor height tracking, slope tracking, and automatic gain control loops were analyzed mathematically and simulated on an HP 9825 A computer. The system was evaluated with the loops interconnected and separate. The effects of fading and of environment transitions were considered. A procedure for passing from acquisition to tracking phase was defined. Results show that the system meets requirements as to slope accuracy, tracking performance, and observation time, if suggested improvements are incorporated in the design.