Target tracking algorithm for single passive sensor

Although the single passive searching and tracking system with angle only measurement has wide application, but now the corresponding tracking algorithm cannot deal well with the actual problem, and tracking lost often happens. This paper proposes a modified algorithm based on studying deeply the present approach. By analyzing the movement of maneuvering targets, the changing rule of angle vectors is summarized in the time field, and then some new vectors are introduced to modify the former residual error. A new approach is proposed for bearing-only tracking of single passive sensor. Simulation results and engineering application demonstrate the validity of the new method.