中文摘要：

介绍了基于DRM数字调幅广播新体制双基地无源地波雷达的系统组成与工作原理，首先从理论上分析了利用DRM数字调幅广播信号作为双基地雷达探测系统非合作照射源的理论可行性，分析表明该信号具有极好的模糊函数性能，是一种利用价值极高的非合作式照射源；接着讨论了该雷达需要重点解决的直达波干扰问题，给出了具体算例和解决直达波干扰的参考方案；除用于传统目标探测外，最后还简要介绍了该雷达用于环境参数遥感（海洋表面动力学和电离层传播特性）的应用前景。

英文摘要：

This paper introduces the system structure and working principle of a new HF passive bistatic surface wave radar based on DRM digital AM broadcast. Firstly, we analyzes the feasibility of using DRM digital AM broadcast as the non-cooperative bistatie opportunistic transmitting sources. The analysis indi- cates that the ambiguity function of DRM signal has excellent performance, so the DRM signal is a very high valuable radiation source for non-cooperative radar. Secondly, we discuss the key problem of direct signal in terference（DSI） which is in urgent need to be overcomed, and some effective methods are recommend to suppress direct wave interference. Finally, we analyze some possible applications of this radar, such as environ- mental remote rensing and ionospheric channel response.