An Extended Nonlinear Chirp-Scaling Algorithm for Focusing Large-Baseline Azimuth-Invariant Bistatic SAR Data

Zhong H.; Liu X.

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An Extended Nonlinear Chirp-Scaling Algorithm for Focusing Large-Baseline Azimuth-Invariant Bistatic SAR Data

机译：聚焦大基线方位不变双基地SAR数据的扩展非线性线性调频标度算法

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For an azimuth-invariant bistatic synthetic aperture radar (BiSAR), not only is the secondary range compression dependent on range, but also the range-cell migration in the range-Doppler domain is nonlinearly dependent on range. To get a better focusing performance, the two range-dependent factors must be taken into account in an imaging algorithm. In this letter, a nonlinear chirp-scaling algorithm is extended for focusing the BiSAR data under a large baseline and a wide range swath. This algorithm leads to more effective processing with computational efficiency, and no interpolation is required.

机译：对于方位不变双基地合成孔径雷达（BiSAR），不仅次级距离压缩取决于距离，而且距离多普勒域中的距离单元迁移也非线性取决于距离。为了获得更好的聚焦性能，在成像算法中必须考虑两个与范围有关的因素。在这封信中，扩展了非线性线性调频缩放算法，用于将BiSAR数据聚焦在较大的基线和较宽的范围内。该算法可以提高处理效率，并提高计算效率，并且不需要插值。

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《Geoscience and Remote Sensing Letters, IEEE》 |2009年第3期|p.548-552|共5页
作者
Zhong H.; Liu X.;
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正文语种 eng
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关键词
Bistatic SAR (BiSAR); large-baseline configuration; nonlinear chirp scaling (NCS); range-cell migration (RCM); synthetic aperture radar (SAR);

机译：双站SAR（BiSAR）;大基线配置;非线性线性调频缩放（NCS）;测距单元偏移（RCM）;合成孔径雷达（SAR）;

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专利

1. Focusing high-squint and large-baseline one-stationary bistatic SAR data using keystone transform and enhanced nonlinear chirp scaling based on an ellipse model [J] . Hua Zhong, Song Zhang, Jian Hu, EURASIP journal on advances in signal processing . 2017,第1期

机译：使用梯形变换和基于椭圆模型的增强型非线性线性调频缩放，聚焦高斜率和大基线的一站式双站SAR数据
2. Improvement of non-linear chirp-scaling algorithm for highly squint bistatic SAR data focusing [J] . Li Yu, Duan Chongdi, Wang Weiwei, . 2019,第20期

机译：高度斜眯起的BISTOG SAR数据聚焦的非线性啁啾缩放算法的改进
3. Focusing of tandem bistatic SAR data using the chirp-scaling algorithm [J] . Shichao Chen, Mengdao Xing, Song Zhou, EURASIP journal on advances in signal processing . 2013,第1期

机译：使用线性调频标度算法聚焦串联双基地SAR数据
4. Focusing translational variant bistatic forward-looking SAR using extended nonlinear Chirp Scaling algorithm [C] . Junjie Wu, Zhongyu Li, Jianyu Yang, IEEE Radar Conference . 2013

机译：使用扩展非线性Chirp Scaling算法聚焦平移变体双基地前视SAR
5. Combination of parallel stochastic algorithms and a deterministic nonlinear least squares algorithm for the analysis of extended x-ray absorption fine structure (EXAFS) data. [D] . Gyulai, Csaba K. 1999

机译：并行随机算法和确定性非线性最小二乘算法的组合，用于分析扩展X射线吸收精细结构（EXAFS）数据。
6. Focusing Bistatic FMCW SAR Signal by Range Migration Algorithm Based on Fresnel Approximation [O] . Yake Li, Siu O’Young 2015

机译：基于菲涅耳近似的距离偏移算法聚焦双基地FMCW SAR信号
7. Focusing of tandem bistatic SAR data using the chirp-scaling algorithm [O] . Shichao Chen, Mengdao Xing, Song Zhou, 2013

机译：使用线性调频缩放算法对串联双基地SAR数据进行聚焦

An Extended Nonlinear Chirp-Scaling Algorithm for Focusing Large-Baseline Azimuth-Invariant Bistatic SAR Data

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