Maximum-likelihood detection of unresolved radar targets and multipath
Abstract
Interference in the form of multipath or uncooperative targets can seriously degrade the angle-of-arrival estimation accuracy of multiple-beam processors. In this paper, the generalized likelihood ratio test is used to derive a test to detect the presence of interference for multiple-beam processors. The detector performance is then analyzed in detail with respect to its dependence on signal-to-noise ratio (SNR), signal-to-interference ration (SIR), and on the relative phase between the target and interfering signals. It is shown that good detection performance can be obtained unless the phase difference between the target and interference signals is either in or out of phase.-
- Publication:
-
IEEE Transactions on Aerospace Electronic Systems
- Pub Date:
- November 1974
- DOI:
- 10.1109/TAES.1974.307890
- Bibcode:
- 1974ITAES..10..821M
- Keywords:
-
- Maximum Likelihood Estimates;
- Multipath Transmission;
- Performance Prediction;
- Radar Detection;
- Radar Targets;
- Signal To Noise Ratios;
- Ground Effect (Aerodynamics);
- Probability Density Functions;
- Radar Tracking;
- Random Variables;
- Wave Reflection;
- Communications and Radar