An efficient NLCS algorithm for maneuvering forward-looking linear array SAR with constant acceleration

Si Chen; Yue Yuan; Shuning Zhang; Huichang Zhao

首页> 外文期刊>Signal processing >An efficient NLCS algorithm for maneuvering forward-looking linear array SAR with constant acceleration

【24h】

An efficient NLCS algorithm for maneuvering forward-looking linear array SAR with constant acceleration

机译：高效的NLCS算法，用于以恒定加速度操纵前瞻性线性阵列SAR

获取原文

获取原文并翻译 | 示例

获取外文期刊封面封底 >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Highlights

•A realistic geometry configuration of the forward-looking linear array SAR is built.

•Efficient range nonlinear chirp scaling algorithm is proposed for the forward looking linear-array SAR imaging.

•Thorough algorithm derivation and approximation error analysis are presented.

•Numerical simulation illustrates easy implementation and high efficiency of the method.

Abstract

Forward-looking linear-array synthetic aperture radar (FLLA-SAR), which can overcome the deficiency of the traditional SAR on forward-looking imaging, continues to gain in significance due to the various applications, such as unmanned aerial vehicle (UAV) reconnaissance. To compensate the space-variant characteristic of along-track frequency modulation (FM) rate caused by the high speed maneuvering UAV, an efficient nonlinear chirp scaling (NLCS) algorithm is proposed in this paper. Based on the analysis of novel geometric configuration and the introduction of NLCS operation, the linear-array UAV SAR can reconstruct the 2-D image of the scout area. Finally, the validation of the proposed algorithm is done by exploiting the simulated data based on 3 × 3 array point targets and an airplane scattering model.

机译：

突出显示

• 已构建了前瞻性线性阵列SAR的逼真的几何配置。

• 为前瞻性线性阵列SAR提出了有效范围非线性线性调频缩放算法成像。

• 提供了详尽的算法推导和近似误差分析。

• < / ce：simple-para>

摘要

前瞻性线性阵列合成孔径雷达（FLLA-SAR）可以克服传统SAR在前视成像方面的不足的技术，由于诸如无人机（UAV）侦察等各种应用而继续变得越来越重要。为了补偿由于高速机动无人机引起的航迹调频率的空间变化特性，提出了一种有效的非线性线性调频标度算法。基于对新型几何构型的分析和NLCS操作的引入，线性阵列无人机SAR可以重建侦察区域的二维图像。最后，通过利用基于3××array3阵列点目标和飞机散射模型的仿真数据对所提出的算法进行验证。

著录项

来源
《Signal processing》 |2018年第3期|155-162|共8页
作者
Si Chen; Yue Yuan; Shuning Zhang; Huichang Zhao;
展开▼
作者单位

School of Electronic & Optical Engineering, Nanjing University of Science & Technology;

School of Electronic & Optical Engineering, Nanjing University of Science & Technology;

School of Electronic & Optical Engineering, Nanjing University of Science & Technology;

School of Electronic & Optical Engineering, Nanjing University of Science & Technology;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类
关键词
Forward-looking linear-array synthetic aperture radar (FLLA-SAR); Forward-looking; Nonlinear chirp scaling (NLCS); Acceleration;

机译：前视线性阵列合成孔径雷达（FLLA-SAR）;前视;非线性线性调频标度（NLCS）;加速度;

相似文献

外文文献
中文文献
专利

1. An efficient and accurate three-dimensional imaging algorithm for forward-looking linear-array sar with constant acceleration based on FrFT [J] . Si Chen, Yue Yuan, Huili Xu, Signal processing . 2021,第Jana期

机译：一种高效准确的三维成像算法，用于基于FRFT的恒定加速度向前看的线性阵列SAR
2. Bistatic-Range-Doppler-Aperture Wavenumber Algorithm for Forward-Looking Spotlight SAR With Stationary Transmitter and Maneuvering Receiver [J] . Zhang Qianghui, Wu Junjie, Song Yue, IEEE Transactions on Geoscience and Remote Sensing . 2021,第3期

机译：具有静止变送器和机动接收器的前瞻性聚光灯SAR的双面范围 - 多普勒 - 孔径波数算法
3. An Improved RD Algorithm for Maneuvering Bistatic Forward-Looking SAR Imaging with a Fixed Transmitter [J] . Yue Yuan, Si Chen, Huichang Zhao Sensors . 2017,第5期

机译：固定发射器操纵双基地前视SAR成像的改进RD算法
4. Extended nonlinear chirp scaling algorithm with topography compensation for maneuvering-platform bistatic forward-looking SAR [C] . Qianghui Zhang, Junjie Wu, Jianyu Yang, International Geoscience and Remote Sensing Symposium . 2017

机译：机动平台双基地前视SAR扩展的具有地形补偿的非线性线性调频缩放算法
5. Efficient dynamic algorithms for networks with constant topology changes. [D] . Xiao, Bin. 2003

机译：具有不变拓扑变化的网络的高效动态算法。
6. An Improved RD Algorithm for Maneuvering Bistatic Forward-Looking SAR Imaging with a Fixed Transmitter [O] . Yue Yuan, Si Chen, Huichang Zhao 2017

机译：固定发射器操纵双基地前视SAR成像的改进RD算法
7. An Adaptive Moving Target Imaging Method for Bistatic Forward-Looking SAR Using Keystone Transform and Optimization NLCS [O] . Zhongyu Li, Junjie Wu, Yulin Huang, 2017

机译：基于Keystone变换和优化NLCs的双基地前视saR自适应运动目标成像方法

An efficient NLCS algorithm for maneuvering forward-looking linear array SAR with constant acceleration

摘要

著录项

相似文献

相关主题

期刊订阅