无二次距离压缩的低频距离-多普勒SAR处理

Proceedings of the 1998 South African Symposium on Communications and Signal Processing-COMSIG '98 (Cat. No. 98EX214) Pub Date : 1998-09-07 DOI:10.1109/COMSIG.1998.736932

J. Horrell, M. Inggs

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引用次数: 5

摘要

本文研究了中心频率在100-200 MHz范围内的系统，严重距离曲率对距离-多普勒SAR处理的影响。重点是机载、条形图、无距离行走的侧视SAR系统(即多普勒质心为零的成像几何形状)。研究了对模拟点目标聚焦的影响。主要目的是向距离多普勒处理器的用户提供一个指示，当不执行与多普勒频率相关的二次距离压缩(SRC)时，VHF频率下的性能可以预期。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Low frequency range-Doppler SAR processing without secondary range compression

This paper investigates the effects of severe range curvature on range-Doppler SAR processing for systems with centre frequencies in the range of 100-200 MHz. The focus is on airborne, strip-map, side-looking SAR systems without range walk (i.e. imaging geometries with a Doppler centroid of zero). The effects on the focusing of a simulated point target are investigated. The main objective is to provide an indication to users of range-Doppler processors what performance could be expected at VHF frequencies when no Doppler-frequency-dependent secondary range compression (SRC) is performed.

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Proceedings of the 1998 South African Symposium on Communications and Signal Processing-COMSIG '98 (Cat. No. 98EX214)

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