A Practical Example of Moving Target Detection (MTD) Processing for an Air Traffic Control Radar with Weather Channel,
ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (FRANCE)
Pagination or Media Count:
An ATC radar processing system of the Moving Target Detector MTD type, comprising a separate processing channel, called weather channel, is presented. The MTD processing is implemented in a high performance coherent radar system. It is designed to improve target detection in various forms of clutter, while providing low output false alarm rate. The chosen signal processing algorithms are based on the use of an 8-doppler filter bank, on CFAR thresholding and on an adaptive clutter map. The weather channel indicates to the user the area of radar coverage where dangerous precipitation occur. Programmable modular processors are used for the digital signal processing and data processing. Their processing power enables to carry out complex adaptive algorithms. This equipment is incorporated in a radar station which can be unmanned, thanks to the equipment automatic built-in tests and the remote maintenance and monitoring system. Results of experiments with this processing system clearly show that MTD processing improves the final picture quality. In particular, detection probability is higher both in clear zones and in clutter, while the false alarm rate remains low, thanks to adaptive processing and algorithms using the estimated radial velocity.
- Active and Passive Radar Detection and Equipment
- Air Navigation and Guidance