The China airborne radar altimeter control system

An airborne radar altimeter (ARA) was developed in China in 1995. The airborne radar altimeter control system (ARACS) is discussed. The ARACS consists of an industrial control computer (ICC), controller and data sampling system (DSS). Besides controlling and managing the ARA, the ICC has charge of the ARA calibration, acquisition, tracking and data processing. The controller has the functions of controlling the microwave switches, generating chirp controlling signals and other controlling signals. The DSS has the functions of sampling and holding data. The ARA software consists of initialization, noise, bias, calibration, acquisition and tracking program elements. After being developed the ARA was tested in QingDao and satisfactory success was obtained.