Estimating target lengths shorter than the radar pulse width
Abstract
This paper discusses the performance and sensitivity of a maximum-likelihood length estimation algorithm which was originally developed to estimate the separation between unresolved point scatterers. It shows that when the two-scatterer target model is valid, the algorithm reliably estimates lengths shorter than the Rayleigh limit provided that the strength of no third interior scatterer (or its equivalent created by a few very closely spaced scatterers) is greater than the geometric mean of the strengths of the fore and aft scatterers.
- Publication:
-
IEEE Transactions on Aerospace Electronic Systems
- Pub Date:
- July 1975
- DOI:
- 10.1109/TAES.1975.308116
- Bibcode:
- 1975ITAES..11..534N
- Keywords:
-
- Maximum Likelihood Estimates;
- Performance Prediction;
- Pulse Radar;
- Radar Measurement;
- Radar Scattering;
- Target Recognition;
- Algorithms;
- Computerized Simulation;
- Error Analysis;
- Length;
- Pulse Duration;
- Rayleigh Scattering;
- System Effectiveness;
- Variance (Statistics);
- Communications and Radar