CN104330795B - 一种基于Keystone变换的地基合成孔径雷达快速成像方法 - Google Patents
一种基于Keystone变换的地基合成孔径雷达快速成像方法 Download PDFInfo
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- CN104330795B CN104330795B CN201410559229.9A CN201410559229A CN104330795B CN 104330795 B CN104330795 B CN 104330795B CN 201410559229 A CN201410559229 A CN 201410559229A CN 104330795 B CN104330795 B CN 104330795B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
- G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
- G01S13/9004—SAR image acquisition techniques
- G01S13/9011—SAR image acquisition techniques with frequency domain processing of the SAR signals in azimuth
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
- G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
- G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
- G01S13/9004—SAR image acquisition techniques
- G01S13/9017—SAR image acquisition techniques with time domain processing of the SAR signals in azimuth
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
- G01S13/90—Radar or analogous systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques, e.g. synthetic aperture radar [SAR] techniques
- G01S13/9021—SAR image post-processing techniques
- G01S13/9023—SAR image post-processing techniques combined with interferometric techniques
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
参数名称 | 符号 | 参数值 |
载频 | fc | 16.2GHz |
发射信号带宽 | Br | 600MHz |
合成孔径长度 | L | 2m |
距离成像范围 | ρ | 50m—3km |
方位成像范围 | θ | -45°—45° |
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CN201410559229.9A CN104330795B (zh) | 2014-10-20 | 2014-10-20 | 一种基于Keystone变换的地基合成孔径雷达快速成像方法 |
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CN104330795A CN104330795A (zh) | 2015-02-04 |
CN104330795B true CN104330795B (zh) | 2017-01-11 |
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Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105974410B (zh) * | 2016-04-28 | 2018-07-20 | 西安电子科技大学 | 机载雷达的多舰船目标sar和isar混合成像方法 |
CN106054157A (zh) * | 2016-07-20 | 2016-10-26 | 西安电子工程研究所 | 数字Dechirp宽带相控阵雷达Keystone变换算法 |
CN108427115B (zh) * | 2018-01-29 | 2020-06-02 | 电子科技大学 | 合成孔径雷达对运动目标参数的快速估计方法 |
CN108535724B (zh) * | 2018-01-30 | 2021-04-30 | 西安电子科技大学 | 基于楔石变换和积分二次函数的运动目标聚焦方法 |
CN109683142B (zh) * | 2018-12-04 | 2020-06-09 | 郑州轻工业大学 | 基于差分包络检波的三角线性调频连续信号参数估计方法 |
CN110058247B (zh) * | 2019-03-29 | 2020-11-17 | 杭州电子科技大学 | 一种合成孔径声呐实时成像的方法 |
CN110136146B (zh) * | 2019-05-17 | 2021-01-08 | 浙江理工大学 | 基于正弦spf分布和水平集模型的sar图像水域分割方法 |
CN111239732A (zh) * | 2020-01-19 | 2020-06-05 | 北京理工大学 | 多部地基sar实现三维形变测量的最优观测几何构型方法 |
CN111722224A (zh) * | 2020-06-22 | 2020-09-29 | 北京理工大学重庆创新中心 | 基于Keystone变换的地基合成孔径雷达三维成像方法 |
CN113093186B (zh) * | 2021-03-31 | 2023-10-31 | 中国人民解放军国防科技大学 | 一种基于分块成像的大场景高分辨率成像方法和装置 |
CN117406223B (zh) * | 2023-12-12 | 2024-03-12 | 中山大学 | 一种近距离双站地基合成孔径雷达成像方法及系统 |
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CN101915920B (zh) * | 2010-07-02 | 2012-09-05 | 北京航空航天大学 | 一种地球同步轨道合成孔径雷达卫星的高分辨率成像方法 |
ES2355340B1 (es) * | 2010-07-26 | 2012-02-09 | Consorci Institut De Geomatica | Método para monitorizar desplazamiento de terreno y de elementos creados por el hombre usando datos de radar de apertura sintética terrestre (gbsar). |
CN104076359B (zh) * | 2014-06-25 | 2017-01-04 | 西安电子科技大学 | 一种基于几何校正的多级后投影合成孔径雷达成像方法 |
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