Maximum likelihood energy detection of M'ary orthogonal signals
Abstract
The characteristic channel transition probabilities for an energy detector designed to process the general class of orthogonal M-ary alphabet signals in Gaussian noise are derived as a function of time-bandwidth product. The signal set considered is an M-ary FSK alphabet; the detector involves a maximum-likelihood decision and includes an erasure threshold. The performance of this maximum-likelihood energy detector is evaluated on the basis of computer simulations. It is shown that the format of the characteristic curves given for a maximum-likelihood detector with an erasure threshold can be conveniently used in analyzing concatenated coded channels.
- Publication:
-
IEEE Transactions on Aerospace Electronic Systems
- Pub Date:
- March 1979
- DOI:
- Bibcode:
- 1979ITAES..15..292H
- Keywords:
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- Maximum Likelihood Estimates;
- Multichannel Communication;
- Orthogonal Functions;
- Signal Detection;
- Stochastic Processes;
- Transition Probabilities;
- Channels (Data Transmission);
- Computerized Simulation;
- Performance Prediction;
- Random Noise;
- Signal Encoding;
- Thresholds;
- Transmission Efficiency;
- Communications and Radar