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Description: Automatic target detection in SAR image is the first stage in the ATR (Automatic Target Recognition) system. It is very important to improve the computing efficiency of the whole system. A conventional automatic target detection method is CFAR (constant false alarm rate) which is based only on the amplitude, discards the phase and thereby sacrifices half information of the SAR imagery. Almost each CFAR brings a large number of false alarms. 2L-IHP (two-look internal Hermitian product) is a new method which exploits the phase and amplitude information. In this paper, both CFAR and 2L-IHP algotithms are compared with an emphasis on 2L-IHP. The 2L-IHP algorithm for target detection is discussed briefly first. In order to apply it widely, it is modified to circumvent the constraint of the data. For polarimetric SAR images, PWF (Polarimetric Whitening Filter) is used to generate an image for target detection. According to ADTS data set, these algorithms are analyzed and evaluated respectively. C-、L- and P- band AIRSAR data are also processed, and some tentative conclusions are derived: Considering the penetrating ability of the microwave, L-band got the best detection accuracy of the three bands; HH polarization performed better for target detection than VV and HV polarization; Moreover, because more information is contained in polarimetric SAR data, here, we conclude that polarimetric SAR data have advantages over single polarized SAR data when they are applied for target detection. But all these conclusions need further validation.
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Size: 288371 |
Author: xbtown@126.com |
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Description: 本程序是基于恒虚警概率的sar图像分割.分出目标和杂波两部分。-sar segmentation based on cfar
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Size: 1024 |
Author: 张蕊 |
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Description: detection on sar of cfar
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Size: 241664 |
Author: 杜朝刚 |
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Description: 关于SAR和极化SAR信息处理的好程序。Cloude.m——经典的Cloude极化分解方法中H/alpha参数的求解方法；classes.m——Cloude极化分解方法；myCFAR.m——三种SAR图像目标检测的恒虚警处理方法。全局CFAR，局部CFAR，指数CFAR-SAR and POLSAR information processing codes. Cloude.m-- H/alpha parameter ofclassic Cloude polarization decomposition classes.m--Cloude decomposition myCFAR.m-- the three CFAR methods of target detection in SAR images
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Size: 2048 |
Author: yule |
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Description: sar图像CFAR船舶检测方法最初提出时发表的论文。-paper about ship detection using CFAR.
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Size: 10702848 |
Author: lizhaorui |
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Description: 一种基于图像分割和归一化灰度Hough变换的SAR图像舰船尾迹CFAR检测算法-Image segmentation based on gray scale and normalized Hough transform SAR ship wake image CFAR detection algorithm
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Size: 534528 |
Author: uncle Wang |
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Description: 极不均匀合成孔径雷达杂波建模及恒虚警检测-Very uneven modeling and synthetic aperture radar clutter CFAR
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Size: 306176 |
Author: 二毛 |
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Description: 基于伽马分布的极化SAR图像CFAR检测算法的研究与实现-gamma distribution CFAR detection
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Size: 1024 |
Author: 张新明 |
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Description: 恒虚警算法matlab程序，处理SAR图像的有用算法-CFAR algorithm procedures to deal with useful algorithms for SAR image
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Size: 372736 |
Author: 金一安 |
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Description: 用恒虚警算法CFAR实现海面sar图像目标检测的matlab代码-With the constant false alarm algorithm CFAR implementation to the surface of the SAR image target detection of matlab code
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Size: 296960 |
Author: 曹芳 |
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Description: 这是一个sar成像的算法，它融合了cfar的处理，使目标更加凸显。非常适合用于sar成像和cfar算法的研究。-This is a sar imaging algorithm, which combines cfar processing, the target is more prominent. Very suitable for research sar algorithm for imaging and cfar.
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Size: 3072 |
Author: 李振宇 |
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Description: SAR图像目标提取地横虚警技术程序，也包括后续地形态学处理与目标鉴别程序。-a program on the CFAR technique which is applied in target recognizing. The morphological program is also included.
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Size: 5120 |
Author: 谭晓 |
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Description: CA-CFAR detection in sar imagery
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Size: 1024 |
Author: 鸿志 |
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Description: CFAR实现sar图像船舰目标检测与识别的matlab代码(Constant false alarm algorithm CFAR to achieve the sea surface SAR images, ship target detection and identification of matlab code)
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Size: 5237760 |
Author: 半瓶墨水
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Description: CFAR algorithm SAR image
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Size: 1845248 |
Author: samieap
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Description: 基于CFAR的SAR目标检测。通过CFAR处理，可以保持信号检测时的虚警率恒定，从而使数据处理终端不致因虚警太多而过载(SAR target detection based on CFAR. Through CFAR processing, the false alarm rate of the signal detection can be kept constant, so that the data processing terminal is not overloaded with too much false alarm.)
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Size: 762880 |
Author: yjdysx001 |
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Description: 基于matlab的cfar检测程序，识别sar图像中的船只，分为全局，局部和双参数检测。(Based on matlab's cfar detection program, the vessel in the sar image is identified and divided into global, local and dual parameter detection.)
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Size: 1024 |
Author: 惠心kbt |
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Description: 基于SAR图像的CFAR检测，内有代码说明。已经进行实验，效果很好，特拿来分享。(CFAR detection based on SAR image, with code description. Experiments have been carried out and the results are very good. I'd like to share with you.)
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Size: 1024 |
Author: 惠心kbt |
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Description: 利用CFAR检测SAR图像中的高亮度目标。(Detect targets with high backscattering intensities by CFAR algorithm)
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Size: 1159168 |
Author: conti丶 |
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Description: 之前上传过一次，不小心删掉了，现在重新发送。基于matlab的cfar检测程序，识别sar图像中的船只，分为全局，局部和双参数检测。已经实验效果不错。(I uploaded it once before and deleted it accidentally. Now I'll send it again. Based on the CFAR detection program of MATLAB, the ship in SAR image is identified, which is divided into global, local and dual parameter detection. The experimental results are good.)
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Size: 1024 |
Author: 惠心kbt |
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