Slow-Time SAR Signal Processing for UWB OFDM Radar System

被引：5
|
作者：
Garmatyuk, Dmitriy [1 ]
Brenneman, Matthew [1 ]
机构：
[1] Miami Univ, Dept ECE, Oxford, OH 45056 USA
来源：
2010 IEEE RADAR CONFERENCE | 2010年
关键词：
PEAK;
D O I：
10.1109/RADAR.2010.5494502
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Orthogonal frequency division multiplexing (OFDM) signals, commonly used for a variety of purposes in modern communication systems, are considered from the radar perspective. An experimental system configured as ultra-wideband (UWB) software-defined radar (SDR) has been assembled and tested in the synthetic aperture radar (SAR) mode at Miami University. Phase history - necessary for slow-time processing of SAR signals - was previously extracted from a single sub-carrier of OFDM pulses; in this paper we examine a more robust solution of phase history estimation using all sub-carriers. The results of the estimation are compared with the ideal single-frequency phase history reconstruction. Simulation examples of cross-range recoveries in noise using both methods are provided and discussed. It is shown that the proposed novel method of slow-time OFDM SAR signal processing is, indeed, a promising technique for multicarrier UWB systems.
引用
收藏
页码：853 / 858
页数：6
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