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ISAR
:近距离目标超高分辨率微波成像技术在安全检测、非破坏性控制、生物医学等领域中有着非常重要的应用
价值和广阔的应用前景。该文利用基于窄脉冲形式的超宽带时域雷达系统研究近距离目标的高分辨率ISAR成像,
给出了仿真和实测结果。利用转台旋转目标,基于超宽带脉冲源和超宽带收发天线以及高性能取样示波器,配以同
步触发脉冲和自行研发的数据采集软件,搭建了该时域雷达实验系统,提出了准确获取目标回波信息的实验条件,
和实现回波延时精确校正的误差补偿方法。并针对采样时间窗内的杂波干扰,讨论了时域后向投影算法(Back
Projection,BP)与背景对消技术相结合的成像算法,实现了分辨率为 8 mm 的近距离目标的成像,准确地反映了
目标的位置、形状和大小等信息。( The high resolution imaging of near field targets are interesting for security, non-destructive control and
biomedical application. In this paper, high resolution near field ISAR imaging is implemented using Ultra Wide
Band (UWB) time domain radar system. Simulation and experiment are both conducted. The target is rotated by
turntable. The system is built based on the UWB pulse source, UWB antennas, high performance sampling
oscillograph, synchronous trigger pulse and proper motion study data acquisition software. Experiment condition
and delay errors compensation method are presented to obtain accurate echo information of the target. And Back
Projection (BP) combined with background cancel algorithm is discussed considering the clutter interference in
time window. )
- 2011-06-19 10:30:55下载
- 积分:1
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pyrAndResid
图像金字塔分解,输入一幅图像,以及需要分解的层数,可以输出图像的金字塔分解(Image pyramid decomposition)
- 2012-10-15 10:26:57下载
- 积分:1
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OJ1211010001486B9EbH
基于局部能量与模糊逻辑的红外偏振图像融合,该文与小波包,支持向量机等融合算法进行对比分析,说明该文算法的优势。(Infrared polarization image fusion based on local energy and fuzzy logic, this paper, wavelet packet, support vector machines and other fusion algorithm comparison analysis to illustrate the advantages of the proposed algorithm.)
- 2012-11-19 21:37:09下载
- 积分:1
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cs_GP
压缩感知中的梯度投影重构算法,经修改可以运用与单像素相机成像(Gradient projection reconstruction algorithm of compressed sensing, modifications can be used with single pixel camera imaging)
- 2018-10-31 16:53:01下载
- 积分:1
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createSeed
通过用户给定的标签信息,来提取图像中的标记像素点位置,保存为种子点(Through the label information given by the user, the position of the label pixels in the image is extracted and saved as seed points.)
- 2020-06-16 01:20:02下载
- 积分:1
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Fast_median_filter
说明: FPGA数字图像处理实现均值滤波,并且仿真将生成图片写出TXT格式以便使用MATLAB查看(Mean filter is realized by digital image processing in FPGA, and the generated image is written in TXT format for viewing with MATLAB.)
- 2019-06-01 21:23:25下载
- 积分:1
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C#图片浏览(支持鼠标拖动与滚轮缩放)
C#图片浏览(支持鼠标拖动与滚轮缩放)
- 2013-11-30下载
- 积分:1
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bianyuanjiance
说明: 多种边缘检测算子对比 不需要改动 有sobel prewittts canny log(Multiple edge detection operators)
- 2020-06-18 20:55:08下载
- 积分:1
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filter
此为中值滤波方法源程序,可完成图像滤波的功能,程序完整,值得下载(This is the median filtering method of source code, to be completed by the function of image filtering, the program integrity, it is worth download)
- 2009-03-16 19:00:11下载
- 积分:1
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watermark
基于DCT域音频水印完整源代码,包括水印图像的预处理(二维二值图像Arnold变换、混沌加密、降维),水印的嵌入提取以及检测,信噪比和相似性系数。(Based on the the DCT domain audio watermarking complete source code, including the watermark image preprocessing (two-dimensional binary images Arnold transform chaotic encryption, dimensionality reduction), the embedded watermark extraction and detection, signal-to-noise ratio and similarity coefficient.)
- 2013-01-06 15:18:15下载
- 积分:1