Fast Identification and Modification of Angle Error Based on Prior Information of Velocity-Measurement Radar

A new method on the use of prior information is proposed to solve the problem that the accuracy of measured angles with a velocity-measurement radar is low. The method of amending the angle error of optical and pulse radar is applied to the angle data correction of velocity-measurement radar. So a method of amending error superposition of many complicated components is proposed, and the conventional method of amending angle error is improved. By eliminating the error item in measured angle data of the velocity-measurement radar, the accuracy of measured angle is improved and the measured angle data can be fully used in computing the trajectory. When the angles are amended, the steady and credible trajectory parameters can be computed. Thus, the trajectory measuring accuracy is improved.