目标的位置信息场定位技术

摘要

对一种新的定位理念———目标位置信息场分析定位进行了阐述。新的定位理念认为，无论有源还是无源定位问题，均是研究怎样充分利用与目标位置相关的观测数据或观测参数所获得的信息，以及关于目标位置的先验信息，以获取目标的位置。这些信息构成了关于目标位置的信息场。从这个理念出发，可以建立更一般的定位概念模型，用以解决现在定位理论无法解决的目标数目未知、观测信息与目标关系不明确的定位问题。详细阐述了这种定位理念，并就空间二维测向多次观测定位、多站测向观测定位、空间多平台多目标测时差定位3种典型的无源观测情况，介绍了处理技术和处理效果，说明了这种处理技术的突出优势：可同时获得目标数目和多目标的精确位置。%A new location conception of Position Observing Information Tolerance Synthesize ( POINTS) is presented in this paper .The proposed location conception regards that the passive or active location problem is to study how to obtain the location of the targets through making full use of the priori information and observation data or information obtained by the observation parameters related to the target location .All of this information constitutes the information field about the target location .We can build up a more general concept of positioning model starting from the concept in order to solve the location problem under the condition of unknown number of target and unclear relationship between target and observation,which the existing positioning theory fails to solve .In this paper,the conception of POINTS is presented,and the calculation methods of several classical passive location problems,including space observation to ground emitters with repeat measurement of two dimensional angle measurement,multiple observers for the ground emitters with orientation measurement only,space multiple observers for multiple ground emitters with DTOA measurements,are described in details .Simulation results show that this location method has the advantages of getting target quantity and multiple targets'position at the same time .