An adaptive locally optimal method detecting weak deterministic signals
Abstract
A new method for detecting weak signals in interference and clutter in radar systems is presented. The detector which uses this method is adaptive for an environment varying with time and locally optimal for detecting targets and constant false-alarm ratio (CFAR) for the statistics of interference and clutter varying with time. The loss of CFAR is small, and the detector is also simple in structure. The statistical equivalent transfer characteristic of a rank quantizer which can be used as part of an adaptive locally most powerful detector (ALMP) is obtained. It is shown that the distribution-free Doppler processor of Dillard (1974) is not only a nonparameter detector, but also an ALMP detector under certain conditions.
- Publication:
-
International Radar Symposium
- Pub Date:
- October 1983
- Bibcode:
- 1983rad..symp..322W
- Keywords:
-
- Communication Theory;
- Radar Detection;
- Signal Detection;
- Signal To Noise Ratios;
- Adaptive Filters;
- Optimization;
- Probability Theory;
- Signal Detectors;
- Statistical Analysis;
- Communications and Radar