High Squint Spotlight SAR Data Processing Using the Frequency Scaling Algorithm

SUN Jin-ping; YUAN Yun-neng; LIU Zhong-kan; MAO Shi-yi

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High Squint Spotlight SAR Data Processing Using the Frequency Scaling Algorithm

更新时间：2025-07-16

- High Squint Spotlight SAR Data Processing Using the Frequency Scaling Algorithm
- Acta Electronica Sinica Vol. 29, Issue 12, Pages: 1593-1596(2001)
- 作者机构：
  
  北京航空航天大学电子工程系203教研室,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN957
- Published：2001
- 稿件说明：
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SUN Jin-ping, YUAN Yun-neng, LIU Zhong-kan, et al. High Squint Spotlight SAR Data Processing Using the Frequency Scaling Algorithm[J]. Acta Electronica Sinica, 2001, 29(12): 1593-1596.
DOI：

SUN Jin-ping, YUAN Yun-neng, LIU Zhong-kan, et al. High Squint Spotlight SAR Data Processing Using the Frequency Scaling Algorithm[J]. Acta Electronica Sinica, 2001, 29(12): 1593-1596. DOI：

摘要

作为一种新的聚束模式合成孔径雷达(Spotlight SAR)成像算法

频率Scaling算法(FSA)在不进行插值操作的情况下

可以对距离单元徙动(RCM)实现精确校正.本文详细研究了频率Scaling算法在大斜视角情况下Spotlight SAR的成像算法.在原有算法的基础上提出了斜视模型下的频率Scaling算法.点目标仿真和对原始回波数据的成像结果都证实了该算法的可行性.

Abstract

As a new spotlight SAR image formation algorithm

Frequency Scaling approach precisely performs the range cell migration correction without interpolation by using a novel frequency scaling operation.A new Frequency scaling image formation algorithm suitable for high squint angle is proposed in this paper.Point target simulations up to 45 deg squint angle have been carried out to show the validity of the improved algorithm.Also presented is a spotlight image extracted from stripmap raw data of DLR's E-SAR system.

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