移动扩频参考源在卫星干扰源地面排查中的应用研究

Application Research of Mobile Spread Spectrum Reference Source in Ground Search of Satellite Radio Interference

由于卫星干扰源定位精度不高,对干扰源地面排查存在耗时久、难度大的特点。为提高干扰源查找效率,研制了一种宽波束扩频参考源系统,该系统具有重量轻、对星便捷、易于携带的特点。同时提出一种三步法搜索卫星干扰源:第一步,赴干扰源定位点处发射扩频参考源,重新定位将定位精度提升至10千米以内;第二步,在新的定位结果区域中发射参考源重新定位,将定位精度提升至1千米以内;第三步,在小于1千米的定位区域内人工搜测目标信号。最后介绍了一起三步法干扰源排查实例,实践结果表明,该方法能极大缩短人工搜测时间,是一种高效的卫星干扰源排查技术。

Ground search of satellite radio interference was difficult and time-consuming,because of low accuracy of geolocation.In order to improve the efficiency of interference search,a kind of wide-beam spread spectrum reference source system has been designed which is light、convenient for aiming satellite and easy to carry.At the same time,a threestep technique to search satellite interference is proposed.First:emitting the mobile reference source in the area of location result to relocate the interference,location accuracy will be within 10 km.Second:repeat above step,location accuracy will be within 1 km.Third:search the target signal manually in 1 km area.Finally,a three-step interference source investigation example is introduced.The practical results show that this method can greatly shorten the manual search time and is a major breakthrough in satellite interference source investigation technology.