Doppler aliasing reduction in SAR imagery using stepped-frequency waveforms

Luminati J.E.; Hale T.B.; Temple M.A.; Havrilla M.J.; Oxley M.E.

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Doppler aliasing reduction in SAR imagery using stepped-frequency waveforms

机译：使用步进频率波形减少SAR图像中的多普勒混叠

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A new technique for eliminating Doppler aliasing artifacts in synthetic aperture radar (SAR) imagery is presented. The technique uses continuous transmission of stepped-frequency (SF) waveforms to generate a simple, but effective, approximation of a two-dimensional |sinc|2 ambiguity function. This approach ensures aliasing artifacts are placed at nulls in a Doppler filter, effectively removing them from the imagery. Various methods of generating SF waveforms are introduced and their performance is quantified. Finally, simulated SAR imagery shows elimination of more than 99% of the aliased energy

机译：提出了一种消除合成孔径雷达（SAR）图像中多普勒混叠伪影的新技术。该技术使用连续传输的步进频率（SF）波形来生成简单，有效的二维| sinc | 2模糊度函数近似。这种方法可确保将混叠伪影放置在多普勒滤镜中的零位处，从而有效地将其从图像中删除。介绍了产生SF波形的各种方法，并对它们的性能进行了量化。最后，模拟的SAR图像显示消除了超过99％的混叠能量

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《IEEE Transactions on Aerospace and Electronic Systems》 |2007年第1期|p.163-175|共13页
作者
Luminati J.E.; Hale T.B.; Temple M.A.; Havrilla M.J.; Oxley M.E.;
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原文格式 PDF
正文语种 eng
中图分类航空;
关键词
Doppler effect; approximation theory; synthetic aperture radar; 2D ambiguity function; Doppler aliasing artifacts; Doppler aliasing reduction; Doppler filter; SAR imagery; approximation; stepped-frequency waveforms; synthetic aperture radar imagery;

机译：多普勒效应;逼近理论;合成孔径雷达;二维歧义函数;多普勒混叠伪影;多普勒混叠减少;多普勒滤波器;SAR图像;逼近;步进频率波形;合成孔径雷达图像;

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专利

1. A Range Grating Lobes Suppression Method for Stepped-Frequency SAR Imagery [J] . Zegang Ding, Yansu Guo, Wenbin Gao, Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of . 2016,第12期

机译：步进频率SAR图像的距离光栅波瓣抑制方法
2. Effects of Doppler Aliasing on Baseline Estimation in Multichannel SAR-GMTI and Solutions to Address These Effects [J] . Liu B., Wang T., Li Y., IEEE Transactions on Geoscience and Remote Sensing . 2014,第10期

机译：多普勒混叠对多通道SAR-GMTI基线估计的影响及其解决方案
3. Demonstration of W-band SAR Imagery with a Ground Based System Having 7.5 GHz of Bandwidth Obtained with a Stepped Chirp Waveform [J] . Marechal Nicholas J., Osofsky Samuel S., Bloom Ronald M. IEEE Transactions on Aerospace and Electronic Systems . 2013,第4期

机译：使用具有步进线性调频波形的7.5 GHz带宽的地面系统演示W波段SAR图像
4. Doppler aliasing reduction in SAR imagery using stepped-frequency waveforms [C] . J. E. Luminati, T. B. Hale, M. A. Temple, International Waveform Diversity and Design Conference . 2004

机译：使用步进频率波形减少SAR图像中的多普勒混叠
5. Comparison of speckle noise reduction techniques using near shift invariant wavelet transforms with application to SAR imagery. [D] . Kirpalani, Ashwin L. 2009

机译：使用近移不变小波变换的斑点降噪技术的比较及其在SAR图像中的应用。
6. A Modified Subpulse SAR Processing Procedure Based on the Range-Doppler Algorithm for Synthetic Wideband Waveforms [O] . Byoung-Gyun Lim, Jea-Choon Woo, Hee-Young Lee, 2008

机译：基于距离多普勒算法的合成宽带波形的改进子脉冲SAR处理程序
7. Doppler Synthetic Aperture Radar Interferometry: A Novel SAR Interferometry for Height Mapping using Ultra-Narrowband Waveforms [O] . Yazici, Birsen, Son, Il-Young, Yanik, H. Cagri 2017

机译：多普勒合成孔径雷达干涉测量：一种新型saR 使用超窄带波形进行高度映射的干涉测量
8. Doppler Aliasing Reduction on Wide-Angle Synthetic Aperture Radar Using Phase Modulated Random Stepped-Frequency Waveforms [R] . Hyatt, A. W. 2006

机译：利用相位调制随机步进频率波进行广角合成孔径雷达的多普勒混叠降低

Doppler aliasing reduction in SAR imagery using stepped-frequency waveforms

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