CAJ | 학술논문

复杂电磁环境下，观测站获得的用于目标定位的参数测量精度有时并不理想，甚至得到错误参数。针对多目标位置信息场定位法在复杂电磁环境下的适应性问题，分析了代价函数在剔除误差较大或错误数据中的显著作用，总结了其在实际应用中的具体实施步骤。以多站无源测向定位为例，通过仿真实验对多目标位置信息场定位法进行性能评估，并与最大似然估计定位法进行对比。仿真结果表明，在部分测量参数存在较大误差甚至错误条件下，多目标位置信息场定位法仍然可以得到较好的定位结果。
복잡전자배경하，관측참획득적용우목표정위적삼수측량정도유시병불이상，심지득도착오삼수。침대다목표위치신식장정위법재복잡전자배경하적괄응성문제，분석료대개함수재척제오차교대혹착오수거중적현저작용，총결료기재실제응용중적구체실시보취。이다참무원측향정위위례，통과방진실험대다목표위치신식장정위법진행성능평고，병여최대사연고계정위법진행대비。방진결과표명，재부분측량삼수존재교대오차심지착오조건하，다목표위치신식장정위법잉연가이득도교호적정위결과。
The measuring accuracy of parameters for the target location obtained by stations was often not ideal in the condition of complex electromagnetic environment,which might even get error measurement parameters. With complex electromagnetic environment,the significantly effect of the cost function in eliminating larger er-ror or false data was analyzed,and concrete implementation steps in practical application was summarized for a-daptability problems of position information field (PIF)location method.Taking passive direction finding loca-tion by multiple stations as an example,the performance of PIF location method was evaluated in comparison with maximum likelihood estimation (MLE)location method.Simulation results showed that PIF location meth-od could get better positioning results in the presence of some large error and even wrong measuring parameters.