基于DRM 数字调幅广播的高频外辐射源雷达实验研究

该文介绍了利用新近研制的全数字主被动一体化高频地波雷达系统，开展我国首次基于DRM (Digital Radio Mondiale)数字调幅广播的高频外辐射源雷达(HF Passive Bistatic Radar, HFPBR)实验研究的情况。论述了该体制雷达的理论、关键技术、探测设备和外场实验，给出了不同条件下(包括地波模式、天波模式、天地波混合传播模式)的典型探测结果，在国际上首次从实验上证实了利用DRM 广播信号实现超视距无源探测的技术可行性，为该探测技术的发展奠定了理论与实验基础。 

Experimental Research of HF Passive Radar Based on DRM Digital AM Broadcasting

This paper gives the experimental research of HF Passive Bistatic Radar (HFPBR) based on Digital Radio Mondiale (DRM) digital AM broadcasting that have been first carried out in China, using the newly-developed all-digital active/passive integrated HF surface wave radar system. The principle, key techniques, experimental equipment, and preliminary results are introduced about this new radar system. Based on analysis of the measurement data, experimental results under different scenarios including surface-wave, sky-wave, and hybrid sky-surface propagation modes are presented, which have proved, for the first time worldwide, the technical feasibility of using DRM broadcasting signal for over-the-horizon detection by field experiment and formed the theoretical and experimental basis for the further development of HFPBR.