为充分利用无源定位隐蔽性好、抗干扰能力强、作用距离远等优势,推动其在军事方面的应用发展,开展双机无源定位高精度定位区间分布仿真研究。通过数学建模与仿真软件,分析基线长度、法线倾角、目标距离、定位张角等因素对定位精度的影响,仿真研究双机定位时满足预定精度要求的区间分布与载机相位条件。仿真结果显示,定位精度要求一定时,满足要求的双机定位引导区间成扇形分布,且扇形区域面积与双机间距、信号频率成正比。提出的双机无源定位飞行方法及武器发射角度确定方法能够帮助判别当前目标所处区域是否满足精度要求,促进无源定位在军事方面的应用发展。

In order to make full use of the advantages of passive location, such as good concealment, strong anti-interference ability and long range, and promote its development in military, the simulation research on high-precision location interval distribution of dual aircraft passive location is carried out. Through mathematical modeling and simulation software, the influence of baseline length, normal angle, target distance, positioning angle on positioning accuracy were analyzed. The interval distribution and carrier phase conditions meeting the predetermined accuracy were simulated. The simulation results show that when the positioning accuracy is certain, the dual aircraft location interval is fan-shaped. The area of the fan-shaped is directly proportional to the distance of dual aircraft and the signal frequency. Finally, the dual aircraft passive location flight and weapon launch angle determination methods were proposed. They can be used to judge whether the current target area meets the accuracy requirements. Results of this research can promote the application and development of passive location in military.