CAJ | 학술논문

机载平台对地面固定目标定位是电子侦察中的一项重要任务。针对机载平台的特点,提出了一种机载单站对地面固定目标的纯方位交叉定位算法,通过测量地面辐射源信号的方位角,结合机载平台的位置与航向信息,建立三维球面弧线计算模型求解目标的地理经纬度,给出了快速计算目标方位斜率的方法,通过多次融合定位提高定位精度。仿真实验中采用卫星工具开发包（STK）仿真软件生成机载平台的位置数据和目标的方位角数据,分析了多次融合定位的收敛情况及不同测向精度下的定位性能,最后给出了一些工程实践性的建议,具有一定的参考意义。
궤재평태대지면고정목표정위시전자정찰중적일항중요임무。침대궤재평태적특점,제출료일충궤재단참대지면고정목표적순방위교차정위산법,통과측량지면복사원신호적방위각,결합궤재평태적위치여항향신식,건립삼유구면호선계산모형구해목표적지리경위도,급출료쾌속계산목표방위사솔적방법,통과다차융합정위제고정위정도。방진실험중채용위성공구개발포（STK）방진연건생성궤재평태적위치수거화목표적방위각수거,분석료다차융합정위적수렴정황급불동측향정도하적정위성능,최후급출료일사공정실천성적건의,구유일정적삼고의의。
It is an important task in the electronic reconnaissance that the airborne platform locates the ground fixed target.Aiming at the characteristics of airborne platform,this paper puts forward a cross location algorithm that the airborne single-station locates the ground fixed target based on azimuth only,by measuring the azimuth angles of ground radiation source signal,establishes the 3D spherical pitch arc calculation model to find the solution of geographical latitude and longitude of target combining with the position and course information of airborne platform,presents the method to calculate the azimuth slope of target rapidly,improves the locating precision through multi-fusion location,uses satelite took kit（STK） simulation software to generate the position data of airborne platform and azimuth data of target in the simulation experiment,analyzes the convergence of multi-fusion location and the locating performance at different direction finding precision,finally gives some suggestions with engineering practicality,which has definite reference meaning.