Description: 用来对 合成孔径雷达系统进行数据处理，仿真等，希望对初学者有所帮助-Used for synthetic aperture radar system data processing, simulation, etc., and they hope to be helpful for beginners Platform: |
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Author:sw |
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Description: 合成孔径雷达回波模拟器的建模仿真与系统设计，首先介绍了合成孔径雷达的高分辨力成像原理、SAR回波理论模型和几种SAR原始回波数据模拟算法。然后采用距离时域脉冲相干法对点目标的原始回波数据进行了模拟，并用经典RD算法对该回波进行处理，得到了期
望的结果，本文还用同样的方法对点阵目标的原始回波数据进行了模拟。
-Synthetic aperture radar echo simulator modeling and simulation system design, first introduced high resolution synthetic aperture radar imaging principle, the the SAR echo theoretical model and several SAR raw echo data simulation algorithm. Domain pulse coherent method and then using the distance of the original point target echo data simulation, and the echo processing using the classic RD algorithm to get the desired results, this paper also used the same way the original dot target back wave data were simulated. Platform: |
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Author:李亮 |
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Description: Theory and design of interferometric syntheticaperture radars is a good explaination of the principal and basic idea of InSAR-Interferometric synthetic aperture radar (InSAR) is a method which may provide a means
of estimating global topography with high spatial resolution and height accuracy. The paper pre-sents a derivation of the signal statistics, an optimal estimator of the interferometric phase,and the expressions necessary to calculate the height-error budget. These expressions are used to derive methods of optimising the InSAR-system
parameters, and are then used in a specific design example for a system to perform high-resolution global topographic mapping mission. Platform: |
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Author:黄超 |
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Description: 1.本程序是自己刚刚接触SAR时编写的时域星载SAR点目标回波仿真，包含了卫星轨道模型、计算星目斜距时用到的各种坐标系转换、SAR回波计算模型以及简单的SAR成像模型，希望对初学者有所帮助。
2.相应的参考资料可查找《卫星轨道姿态动力学与控制》及《魏钟铨_合成孔径雷达卫星》；-1. This program is just contact with their own prepared when the time domain SAR spaceborne SAR point target echo simulation, contains the satellite orbit model, the satellite project when the use of a variety of slant range coordinate system conversion, SAR echo calculation model and SAR imaging model simple, want to help beginners. 2. The corresponding reference can be to find " satellite attitude and orbit dynamics and control" and " Wei Zhong Quan _ synthetic aperture radar satellites" Platform: |
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Author:diaoguijie |
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Description: The project of high-resolution synthetic aperture radar system designed for a small satellite
is proposed. It is intended for expeditious producing of detailed radar images of
natural and artificial origin objects. The offered radar system has space resolution of 3
meters and four non-coherent accumulations (looks). The system key feature is, that
images synthesis and their normalization are carried out immediately on the satellite.
The obtained radar image is exposed to compression. These operations reduce volume of
data, transmitted on the ground by tens time. For a data acquisition the antenna of 1-m
diameter could be used. Platform: |
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Author:gaoyan |
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Description: 在分析聚束合成孔径雷j盘(SAR)方位向时频关系的基础上，提出了一种新的全孔径分辨率SAR成像算法。
根据SAR在条带与聚束模式下回波信号之间的差别，利用现有成熟的条带SAR成像算法实现先对聚束SAR各方位向子
孔径成像，而后再将各方位子孔径带宽合成为全孔径带宽，以形成具有全孔径分辨率的SAR图像，极大降低了系统PRF
的要求。-In the analysis of spotlight synthetic aperture radar dish j (SAR) azimuth based on the time-frequency relationship, a new full-aperture resolution SAR imaging algorithm. According to SAR in strip and spotlight mode, the difference between the echo signal, the use of existing mature band SAR imaging algorithm first bit of the spotlight SAR the parties to the sub-aperture imaging, and then place then all the bandwidth synthetic aperture the bandwidth for the full aperture to form a full aperture resolution SAR images, greatly reducing the system PRF requirements. Platform: |
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Author:gaojianqiao |
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Description: 分析了合成孔径雷达的模糊度问题及其对图像质量的影响, 详细描述了模糊度的
表达式, 分析了不同系统参数对模糊度的影响, 对所谓的重影现象作了定量分析-Analysis of synthetic aperture radar ambiguity problems and their impact on image quality, a detailed description of the fuzzy degree of expression of the different system parameters on the degree of influence on the so-called ghost phenomenon analyzed quantitatively Platform: |
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Author:gaojianqiao |
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Description: 基于传感信息的合成孔径雷达图像仿真系统Sensor information based on synthetic aperture radar image simulation system-Sensor information based on synthetic aperture radar image simulation system Platform: |
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Author:hv1230 |
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Description: ：为有效减少大面积、多套干涉数据基线估计所需的地面控制点数量、降低接边处反演高程的差异，提出考虑干涉
相位偏置的犐狀犛犃犚区域网平差基线估计方法。采用中国科学院电子学研究所机载犐狀犛犃犚系统获取的多套干涉数据进行
了区域网平差基线估计试验，利用少量地面控制点完成了各套干涉数据的基线估计，减小接边处反演高程的差异，验证
该基线估计方法的有效性。-Baseline Estimation is important for deriving accurate heights in processing of InSAR（Interferometric Synthetic Aperture Radar）. It needs large quantities of ground control points with proper placements to estimate baseline parameters for multiple InSAR data that cover large areas if adopting baseline estimation algorithm for each pair of data. What’s more, there will be great difference between heights derived from different data due to the errors of baseline estimation. A new baseline estimation algorithm with block adjustment considering phase offset was proposed to reduce the needed ground control points and the difference between heights derived from different data. The experiments of baseline estimation with block adjustment were done with multiple pairs of InSAR data obtained by airborne InSAR system researched by Institute of Electronics, Chinese Academy of Sciences. It used less ground control points, and the difference between heights in overlap areas was reduced, as validate Platform: |
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Author:jgw |
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Description: 干涉参数定标对于机载双天线InSAR（Interferometric Synthetic Aperture Radar）系统的大面积高精度数字高程模型（DEM，Digital Elevation Model）获取具有重要意义。为了高效地进行干涉参数定标，本文从双天线InSAR获取DEM的基本原理出发，构建了一种新的考虑干涉相位偏置、基线长度和基线水平角三个干涉参数的外定标模型，设计了外定标模型的未知参数解算方案。利用GPS（Global Position System，全球定位系统）实测的高程控制点对中国科学院电子学研究所自主研制的机载双天线InSAR系统进行了干涉参数定标实验，统计了利用定标后干涉参数反演地面高程的精度，验证了所采用外定标模型及解算方案的正确性和有效性。-It is significant to calibrate interferometric parameters of dual-antenna airborne InSAR（Interferometric Synthetic Aperture Radar）systems for deriving accurate DEM (Digital Elevation Model) with large areas. A new outside calibration model considering phase offset, baseline length and baseline angle was proposed in order to calibrate interferometric parameters effectively, which was induced from the basic theory of DEM deriving from InSAR. And its solution scheme was designed. The outside calibration experiments were done with height control points measured by GPS to calibrate the dual-antenna airborne InSAR system researched independently by Institute of Electronics, Chinese Academy of Sciences. The accuracy of heights derived with calibrated interferometric parameters was calculated, as validated the proposed calibration model and its solution algorithm. Platform: |
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Author:jgw |
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Description: DOPPLER-ONLY SYNTHETIC APERTURE RADAR,
This thesis is a proof-of-concept that the imaging
process can be performed using high-doppler resolution data. The system requires a simple continuous wave transmitter, and the
signal returns are confined to a narrow band. Platform: |
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Author:adem |
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Description: High-resolution airborne synthetic aperture radar
(SAR) systems are very sensible to deviations of the aircraft from
the reference track. In high-resolution imagery, the improvement
of range resolution increases the difficulty of implementing range
cell migration correction (RCMC), while a wider synthetic aperture
increases the cumulative time of motion errors which will
affect the image quality. To enable accurate motion compensation
in image processing, a high-precision navigation system is needed.
However, in many cases, due to the limit of accuracy of such systems,
motion errors are hard to be compensated correctly, causing
mainly the resolution decrease in final image Platform: |
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Author:yas |
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