A filtering technique of passive radar in hyperbolic coordinate system
Abstract
By cross-correlating the processing of signals from two radars, information can be obtained on the difference in distance between the target and two radars. The trace here is a hyperbola. The target can be located by intersecting two hyperbolic curves. The location arrived at may be false if there are several sources; by appropriate pairing, however, these false targets can be eliminated. Filtering techniques are required to increase the accuracy of location. An alpha-beta filter in the hyperbolic coordinate system is presented, and it is shown that in certain cases this filter is more efficient than the conventional method.
- Publication:
-
Radar-82
- Pub Date:
- 1982
- Bibcode:
- 1982rpi..conf..288C
- Keywords:
-
- Cross Correlation;
- Hyperbolic Coordinates;
- Radar Filters;
- Signal Processing;
- Target Acquisition;
- Error Analysis;
- Kalman Filters;
- Radio Frequency Interference;
- Real Time Operation;
- Communications and Radar