Single-satellite positioning algorithm based on direction-finding

It is the research focus of electronic reconnaissance at all levels to locate the ground jamming source by using the spacecraft equipped with the direction finding system. Aiming at the characteristics of spacecraft working platform, the localization algorithm of single-satellite to ground radiation source based on direction finding is studied. In the simulation experiment, the STK satellite orbit software is used to generate the satellite position data and the azimuth angle and azimuth data of the target relative to the satellite. The data are modeled by the unscented Kalman filter. The positioning accuracy of extended Kalman filter and the unscented Kalman filter are analyzed. And the validity of the unscented Kalman filter in single-satellite positioning is verified.