Research on Single Observer Passive Location Technology for Moving Targets

It is an elementary requirement to a new-type radar counter reconnaissance system to realize single observer passive location of moving targets.A fixed single observer can realize the passive location of a moving target by using angle,angular velocity and Doppler frequency rate-of-change information.But this method is very sensitive to angular velocity and requests high measuring accuracy.A single observer passive location method is proposed by using direction of arrival,phase difference rate-of-change,frequency and Doppler frequency rate-of-change in this paper.Associating with a certain fixed radar counter reconnaissance system,location theory,ranging error and observability are analyzed.Computer simulation of single measurement and its conclusion are given.The simulation and research show that this method reduces the requirement of angular velocity by adding phase difference rate-of-change information.