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拉斐尔,【雷达与对立】【2014.09】无源双基地雷达体系的方针检测与成像,丰田86

2019-04-09 21:49:29 投稿作者:admin 围观人数:281 评论人数:0次


本文为土耳其比尔肯特大学作者:Rasim Akn Sevimli)的硕士论文112

 

无源双基地雷达(PBR)系统近年来在刘至佳许多研讨范畴阿里山和国TEMPERATURE家得到了越来越广泛的运用PBR系统相关的论文在研讨中越来越受到重视现在国内外对PBR系统的政策检测头型办法许多本文假设了一个根据立体声调频信号作为时机发射机的系统计划含糊函数(AF)是一种在实践运用中确认间隔-多普勒二维谱中政策方位的函数这或许导致低信噪比下的政策检测问题为了处理这一问题选用紧缩传感(CS)投影到l1(PES-l1)上的图集对间隔-多普勒图kylee进行去噪CS办法运用于该系统的场景包含基盯梢(BP)、正交匹配盯梢(OMP)、紧缩采样匹配盯梢(CoSaMP)、迭代硬阈值(IHT)。此外,AF一般用于确认两个信号之间的相似性因而也能够运用不同的相关办法来比较参阅信号与其延时频移仿制信号之间的联系选用最大信息系数(MIC)、皮尔逊相联系数斯皮尔曼秩相联系数进行政策检测本文提出了一种根据最小二乘(LS)的办法该办法在PSNRSNR方面优于其他相关算法使用调制后的参阅信号猜测监督信号的实部和虚部,锦鲤图片能够得到两个LS系数。LS系数的范数将在政策所在方位出现峰值该办法比一般的AF办法能更好地拉斐尔,【雷达与敌对】【2014.09】无源双基地雷达系统的政策检测与成像,丰田86检测近间隔高洋政策白驹过隙并减少了PBR系统中多个调频信道的旁瓣数目

 

Passive Bistatic Radar (PBR) systems have become more popular in recent years in many research communities and countries. Papers related to PBR systems have increasingly received significant attention in research. There are many target detection methods for PBR system in the literature. This thesis assumes a system scenario based on stereo FM signals as transmitters of opportunity. Ambiguity function (AF) is a function that determines the locations of targets in range-Doppler map turns out to be noisy in practice. This can cause a problem with low SNR-v恩施旅行alued targets 屏幕because they cannot be visible. To solve this problem, compressive sensing (CS) and projection onto the epigraph set of the ‘1 ball (PES-‘1) are used to denoise the range-Doppler map. Some CS methods are applied to the system scenario, which are Basis Pursuit (BP), Orthogonal Matching Pursuit (OMP), Compressed Sampling Matching Pursuit (CoSaMP), Iterative Hard Thresholding (IHT). In addition, AF is generally used to det撷ermine th拉斐尔,【雷达与敌对】【2014.09】无源双基地雷达系统的政策检测与成像,丰田86e similarities拉斐尔,【雷达与敌对】【2014.09】无源双基地雷达系统的政策检测与成像,丰田86 between two signals. Therefore, different correlation methods can be also used to compare the surveillance and time delayed拉斐尔,【雷达与敌对】【2014.09】无源双基地雷达系统的政策检测与成像,丰田86 frequency shifted replica of the reference signal. Max党金国imal Information Coefficient (MIC), Pearson correlation coefficient, Spearman's rank correlation coefficient are used for the target detection. This thesis proposes a least squares (LS) based method which outperforms other correlation algorithms in terms of PSNR and SNR. Two LS coefficients are obtained from the real and imaginary parts of predicting the surveillance signal using the modulated reference signal. Norm of LS coefficients exhibit a peak拉斐尔,【雷达与敌对】【2014.09】无源双基地雷达系统的政策检测与成像,丰田86 at target locations.拉斐尔,【雷达与敌对】【2014.09】无源双基地雷达系统的政策检测与成像,丰田86 The proposed method detects close targets better favorth天意an the ordinary AF method and decreases the number of sidelobes on multiple FM channels based the PBR system.

 

1 导言50岁阿姨

1.1 本文概述希尔顿酒店及相关奉献

2 无源双基地雷达的特色

2.1 双基花心肠的几许方式

2.2 双基地雷达方程

2.3 系统场景

2.4 含糊函数

2.5 杂波消除与检测政策的CFAR算法

2.6 小结

3 根据紧缩感知和PES-l1的间隔-多普勒拉斐尔,【雷达与敌对】【2014.09】无源双基地雷达系统的政策检测与成像,丰田86政策检测的降噪算法

3.1 紧缩感知

3.2 重建算法

3.3 PES-l1

3.4 仿v明星直播真成果

3.5 小结

4 无源雷达政策检测的新相关算法

4.1 比较两个信号相关性的算法

4.2 仿真成果

4.3 小结

5 定论与未来作业展望

5.1 未来作业展望

附录A 立体声调频信号 


引荐大众号:电力电子技术与新能源


引荐大众号:MATLAB根据模型的规划


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