【雷达与对抗】【2017.06】空中目标的无源雷达探测

本文为瑞典国防研究局（作者：Erol Ali）的硕士论文，共63页。

本文的目的是利用两个USRP-N200软件无线电和两副普通电视天线构成无源双基地雷达系统。为了校准这些设备，使用了一些辅助部件，包括一个octoclock CDA-2990、开关和信号发生器。进行了多次测试，以验证采样是同时开始的，并且由于使用不同的本地振荡器，设备之间不存在明显的相移。系统采用C++语言实现，利用模糊函数对信号进行MATLAB处理。对一架降落在林雪平机场的商用飞机和一架无人机进行了观测。这些测量结果在二维彩色图上显示出它们的双基地距离和双基地速度。

The purpose of this thesis is to constructa passive bistatic radar system using two USRP N200 software defined radios andtwo ordinary TV-antennas. Several auxiliary components were used in order toalign and calibrate the devices including an octoclock CDA-2990, switch andsignal generator. Several tests were made to verify that the sampling startedsimultaneously and that no significant phase shift existed between the devicesdue to the use of different local oscillators. The system is implemented in C++and the signal processing is done in Matlab making use of the ambiguityfunction. Measurements were conducted on a commercial aircraft landing atLinköping airport and on an UAV. The results from these measurements show theirbistatic range and bistatic velocity in 2D color plots.

1. 引言
2. 理论
3. 系统结构
4. 软件实现
5. 系统验证
6. 仿真
7. 现场实验
8. 结论
   附录A PBR手册

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