Title :
Limitations of radiometer performance in spherically invariant noise
Author :
Sousa, Michael J. ; Betz, John W.
Author_Institution :
Mitre Corp., Bedford, MA, USA
Abstract :
The radiometer is a common method for detection of unknown signals in noise. Most analyses of radiometer performance are based on assumptions of stationary Gaussian noise with known marginal statistics. In this note, we use a spherically invariant noise model to derive simple expressions for radiometer performance degradation in noise variance uncertainty. Numerical examples are provided to show that channel uncertainty imposes a substantial penalty in detection performance.<>
Keywords :
Gaussian noise; performance evaluation; probability; radiometers; random processes; signal detection; channel uncertainty; detection performance; noise variance uncertainty; penalty; radiometer performance; radiometer performance degradation; spherically invariant noise; spherically invariant noise model; stationary Gaussian noise; Background noise; Degradation; Gaussian noise; Performance analysis; Radiometry; Random processes; Signal detection; Signal processing; Signal to noise ratio; Uncertainty;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
