Share Email Print
cover

Proceedings Paper

Matched filter based iterative adaptive approach
Author(s): Ramesh Nepal; Yan Rockee Zhang; Zhengzheng Li; William Blake
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Matched Filter sidelobes from diversified LPI waveform design and sensor resolution are two important considerations in radars and active sensors in general. Matched Filter sidelobes can potentially mask weaker targets, and low sensor resolution not only causes a high margin of error but also limits sensing in target-rich environment/ sector. The improvement in those factors, in part, concern with the transmitted waveform and consequently pulse compression techniques. An adaptive pulse compression algorithm is hence desired that can mitigate the aforementioned limitations. A new Matched Filter based Iterative Adaptive Approach, MF-IAA, as an extension to traditional Iterative Adaptive Approach, IAA, has been developed. MF-IAA takes its input as the Matched Filter output. The motivation here is to facilitate implementation of Iterative Adaptive Approach without disrupting the processing chain of traditional Matched Filter. Similar to IAA, MF-IAA is a user parameter free, iterative, weighted least square based spectral identification algorithm. This work focuses on the implementation of MF-IAA. The feasibility of MF-IAA is studied using a realistic airborne radar simulator as well as actual measured airborne radar data. The performance of MF-IAA is measured with different test waveforms, and different Signal-to-Noise (SNR) levels. In addition, Range-Doppler super-resolution using MF-IAA is investigated. Sidelobe reduction as well as super-resolution enhancement is validated. The robustness of MF-IAA with respect to different LPI waveforms and SNR levels is also demonstrated.

Paper Details

Date Published: 12 May 2016
PDF: 12 pages
Proc. SPIE 9829, Radar Sensor Technology XX, 982912 (12 May 2016); doi: 10.1117/12.2223913
Show Author Affiliations
Ramesh Nepal, The Univ. of Oklahoma (United States)
Yan Rockee Zhang, The Univ. Of Oklahoma (United States)
Zhengzheng Li, The Univ. of Oklahoma (United States)
William Blake, Garmin International, Inc. (United States)


Published in SPIE Proceedings Vol. 9829:
Radar Sensor Technology XX
Kenneth I. Ranney; Armin Doerry, Editor(s)

© SPIE. Terms of Use
Back to Top