适用于非合作发射源的合成孔径雷达无源成像方法

doi:10.7527/S1000-6893.2013.0059

Abstract

Abstract:

Synthetic aperture radar (SAR) with the feature of high resolution imaging is of considerable significance in both civil and military applications. With the increasing complexity of the battle environment, to improve SAR electronic counter performance becomes one of the most important concerns in the development of SAR technology. This paper presents a novel passive SAR imaging method, which first correlates the received signals at a single SAR receiver or multiple SAR receivers, and then reconstructs the scene radiance by developing a filtered-back-projection technology based on this correlation signal model. The method does not require a priori information of the transmitted waveform and the location of the transmitters, which makes it applicable to the case of non-cooperative transmitters. It is also applicable to arbitrary flight trajectories and multistatic SAR. The paper discusses the imaging in the framework of a bistatic SAR, where it demonstrates the effectiveness of the proposed passive SAR imaging method, and analyzes the main factors that influence the quality of the reconstructed image.

Key words: synthetic aperture radar, passive radar, imaging, non-cooperative transmitter, filtered-back-projection

CLC Number:

V19
TN957.52

ZHANG Xuan, WANG Ling. A Passive Synthetic Aperture Radar Imaging Method for Non-cooperative Transmitters[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2013, 34(6): 1397-1404.

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A Passive Synthetic Aperture Radar Imaging Method for Non-cooperative Transmitters

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