Fast versus slow scan radar operation for coherent small target detection in sea clutter
Authors:
- 9 December 2005
- journal article
- Published by Institution of Engineering and Technology (IET) in IEE Proceedings - Radar, Sonar and Navigation
- Vol. 152 (6) , 429-435
Abstract
Small maritime surface targets can be difficult to distinguish from sea clutter in radar backscattered signals, but discrimination may be improved by using coherent detectors within the dwell time of a scanning radar. Non-coherent integration, coherent integration, the Kelly detector and the adaptive linear quadratic detector are considered. Target detectability may also be improved by combining the results of a single dwell across multiple scans. Overall target detection times of 2, 5 and 10 s are considered and the trade-off between within-scan dwell time and multiple scan processing gain is investigated. Analysis of high-range-resolution coherent X-band data of small boats reveals that faster scan rates with corresponding shorter dwell times provide improved target detection performance over slower scan rates and longer dwell times.Keywords
This publication has 6 references indexed in Scilit:
- Parameter estimation for the K-distribution based on [ z log( z )]IEE Proceedings - Radar, Sonar and Navigation, 2001
- Doppler modelling of radar sea clutterIEE Proceedings - Radar, Sonar and Navigation, 2001
- Experimentally motivated model for low grazing angle radar Doppler spectra of the sea surfaceIEE Proceedings - Radar, Sonar and Navigation, 2000
- Sub-optimum coherent radar detectionin a mixtureof K-distributed and Gaussian clutterIEE Proceedings - Radar, Sonar and Navigation, 1997
- An Adaptive Detection AlgorithmIEEE Transactions on Aerospace and Electronic Systems, 1986
- Rapid Convergence Rate in Adaptive ArraysIEEE Transactions on Aerospace and Electronic Systems, 1974