The Estimation of Vehicle Orbit in Boost Phase Based on Passive Detection of Satellite

A method to estimate system error of measuring of detector and orbit parameter of target vehicle simultaneously in passive detection of vehicle orbit in boost phase by two satellites is described in this paper first.In this way,the system deviation is calculated by transform it to rotation angle of measuring axis of probe in condition that the error is extremely small.Then the task of parameter estimation is transformed to optimization question by least square method.The latter can be solved by genetic algorithms.Finally,by increasing the constraints of dynamic model of target,the method of estimation of vehicle orbit based on passive detection of only one satellite is introduced.