固定飛行姿態(tài)角下的相位差變化率無源定位方法研究
Research on passive location method using phase difference change rate with fixed flying posture angle
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摘要: 該文在現(xiàn)有單站無源定位方法的基礎上,介紹了相位差變化率定位法。該方法利用觀測平臺上兩個相互正交的相位干涉儀接收目標輻射電磁波的相位差獲取目標的方向信息,利用對應的相位差變化率獲取目標的徑向距離信息,從而實現(xiàn)對目標的實時高精度定位,文中給出了觀測平臺飛行姿態(tài)角固定情況下的定位表達式并進行了定位精度分析。仿真結(jié)果表明,該方法是一種發(fā)展前途較好的單站無源定位方法。Abstract: In this paper, the single observer-passive location method using phase difference change rate is introduced based on existing methods. The direction of the target can be obtained with phase difference between two orthogonal interferometers on the observer and the radial distance with corresponding phase difference change rate. Then the target can be located with high speed and precision. Locating expressions are given when the observer is flying with a fixed posture angle. Simulations show that this method is effective.
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孫仲康,陳輝煌,定位導航與制導,北京,國防工業(yè)出版社,1987年12月,35-45,271-342. ［2］孫仲康,周一宇,何黎星,單多基地有源無源定位技術,北京,國防工業(yè)出版社,1996年5月,234-288.[2]許耀偉,一種快速高精度無源定位方法的研究,[博士論文],長沙,國防科學技術大學,1998年11月. -
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