Application Of Multi-factor In Evaluation Of Passive Location

Target location is a significant content in modern battle.The coordinate,track,parameters and activity pattern can be mastered via target location,making knowing both self and others,which offers intelligence to further action.Target location is realized by active location or passive location.Active location equipment emits signal to detect target while working,leading to self-exposure and being tracked.Passive location equipment is widely used with advantages of concealment and long detecting range for receives signals without emitting.Triangulation and second positioning are conventional models in passive location.Accuracy is the key parameter in evaluation of location.The evaluation of location accuracy and the guidance of application via multi-factor are topics worthy of exploration.Application of multi-factor in evaluation of passive location is of value of academic research and practical application.This dissertation studies the application of multi-factor in evaluation of passive location through fuzzy aera,circle error probable(CEP)and geometric dilution of precision(GDOP).Firstly,this dissertation studies principles of direction finding and location in passive location,and introduces direction finding by phase method and amplitude comparison method by formula derivation.Secondly,this dissertation conducts research on principles of three kinds of evaluation factors.Fuzzy aera is a basic factor of evaluation,which evaluates performance of passive location visually.CEP is a classic and precise factor of evaluation,which is of significance in guidance of fire attack and other military operations.GDOP is a comprehensive factor of evaluation,which evaluates the location accuracy overall in region.Last,simulation of application of multi-factor evaluation in typical scene is carried out,coming to the conclusion that is use of guidance in application of passive location.