Technology Status and Development Trend for Radar Detection of Hypersonic Target in Near Space

Hypersonic target in near space put forward new challenge to space defense system, and it has important significance to apply radar to detect hypersonic target in near space. Firstly, typical characteristics for hypersonic target in near space are described. Secondly, the technology status for detection of high velocity target is summarized from three aspects which include signal processing, signal waveform and radar system, and then the shortage for detection of hypersonic target with current technology is analyzed. The shortage includes three aspects, the first is that the current signal processing doesn’t take account the electromagnetic scatter characteristic of hypersonic target; the second is that the current several kinds of coding signal waveform have not enough tolerance to hypersonic speed, and the third is that the current radar system doesn’t take account hypersonic movement and small radar cross section for the target synthetically. Under the base of characteristics analysis and technology status for detection, it is pointed that three aspects including plasma characteristic, multi-static radar system supporting rapidly observation and maneuver detection syncretizing coherent accumulation are needed to solve in radar detection of hypersonic target in near space. Furthermore, a structure of multi-static radar system for detecting hypersonic target in near space is put forward.