Fast envelope detector with bias compensation
Abstract
In combination with an enveloped detector in a radar system, a bias compensation circuit consisting of a programmable read-only memory and a binary adder produce an unbiased envelope detection signal. The bias compensation circuit adds one to the output of the detector based upon whether the minimum of the I and Q (inphase and quadrature) signals is odd and the maximum even. It is capable of compensating for both normal envelope detection and the multiple divide-by-two-case. As a result the dynamic range of the radar can be increased without the necessity for extensive additional hardware.
- Publication:
-
Patent Application Department of the Air Force
- Pub Date:
- June 1984
- Bibcode:
- 1984pad..reptS....B
- Keywords:
-
- Bias;
- Radar Receivers;
- Read-Only Memory Devices;
- Signal Processing;
- Approximation;
- Circuits;
- Error Analysis;
- Orthogonality;
- Patent Applications;
- Signal Detection;
- Signal Detectors;
- Communications and Radar