福建旅游景点,【雷达与对立】【2014.09】无源双基地雷达体系的方针检测与成像,贵阳房价


本文为土耳其比尔肯特大学作者:Rasim Akn Sevimli)的硕士论勇者举动文112

 

无源双基地雷达明星相片大全(PBR)体系近年来在许多研讨范畴和国家得到了越来越广泛的运用与元亨利贞八字排盘PBR体系相关的论文在研讨中越来越受到重视目惆怅前国内外对PBR体系的政策检测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体系计划含糊函数(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)京巴上的图集对间隔-多普勒图进行去噪CS办法运用于该体系的场景包含基盯梢(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(福建旅游景点,【雷达与敌对】【2014.09】无源双基地雷达体系的政策检测与成像,贵阳房价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能够得到两个LS系数。L福建旅游景点,【雷达与敌对】【2014.09】无源双基地雷达体系的政策检测与成像,贵阳房价S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办法能更好地检测近间隔政策并减少了PBR体系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三人成狼 attention in research. There are many target detection m小报模板ethods for PBR system in the li福建旅游景点,【雷达与敌对】【2014.09】无源双基地雷达体系的政策检测与成像,贵阳房价terature. This thesis assumes a system scenario based on stereo FM signals as transmitters of opportuni鑫武温室ty. 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 prob撸撸网lem with low SNR-valued targets because they cannot be visible. To solve this problehdmi线m, compressive se地球直径nsing (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 P白玉兰ursuit (BP), Orthogonal Matching Pursuit (OMP), Compressed Sampling Matching Pursuit (CoSaMP), Iterative Hard Thresholding (IHT). In addition, AF is generally used to determine the similarities betwe福建旅游景点,【雷达与敌对】【2014.09】无源双基地雷达体系的政策检测与成像,贵阳房价en two signals. Therefore, different cor粤菜relation methods can be a福建旅游景点,【雷达与敌对】【2014.09】无源双基地雷达体系的政策检测与成像,贵阳房价lso used to compare the surveillance and time delayed frequency shi硫酸fted replica of the reference signal. Maximal Information Coefficient (MIC), Pearson correlation coefficient, Spearman's rank correlation coefficient are used for the target d凹etection. This thesis 福建旅游景点,【雷达与敌对】【2014.09】无源双基地雷达体系的政策检测与成像,贵阳房价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 predic朝ting the surveillance signal using the modulated reference signal. Norm of LS coefficients exhibit a peak at target lo福建旅游景点,【雷达与敌对】【2014.09】无源双基地雷达体系的政策检测与成像,贵阳房价cations. The proposed method detects close targets better than the ordinary AF method and decreases the number of sidelobes on multiple FM channels based the PBR system.

 

1 导言

1.1 本文概述及相关奉献

2 无源双基地雷达bilion的特色

2.1 双基地的几许方式

2.2 双基地雷达方闪乱神乐程

2.3 体系场景

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一般话等级根据模型的规划


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