Implementation of spaceborne bistatic FMCW SAR imaging algorithm based on multi-core DSP

被引：1
|
作者：
Chen Y. [1 ]
Xiao G. [1 ]
Quan Y. [1 ]
Ren A. [1 ]
Bie B. [1 ]
Xing M. [2 ]
机构：
[1] School of Electronic Engineering, Xidian University, Xi'an
[2] Academy of Advanced Interdisciplinary Research, Xidian University, Xi'an
来源：
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2024年 / 46卷 / 01期
关键词：
frequency modulated continuous wave synthetic aperture radar imaging algorithm; multi-core digital signal processor; real-time processing; spaceborne bistatic;
D O I：
10.12305/j.issn.1001-506X.2024.01.14
中图分类号：
学科分类号：
摘要：
Frequency modulated continuous wave (FMCW) synthetic aperture radar (SAR) reduces the peak transmission power of the sensor, minimizes the weight and cost of the system, and is widely used in airborne platforms. The bistatic architecture and FMCW technology are combined to form the spaceborne bistatic FMCW SAR. It is widely used in airborne platforms. In this paper, the range-Doppler (RD) algorithm is improved to establish a high-performance FMCW SAR imaging frequency domain algorithm and the imaging effect is better, which is suitable for the spaceborne bistatic platform, whose processing accuracy is significantly improved. Based on multi-core digital signal processor (DSP), a parallel processing architecture suitable for spaceborne bistatic SAR imaging algorithm is constructed, and the hardware and software are designed and implemented. It is verified that the proposed software architecture can meet the real-time imaging requirements and the feasibility of the engineering implementation of the algorithm. © 2024 Chinese Institute of Electronics. All rights reserved.
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页码：121 / 129
页数：8
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