Research on Lateral Positioning Algorithm of Fixed Radiation Source by Mobile Single Station

Abstract

Wireless communication and satellite navigation technology to promote passive positioning technology has become a hot topic in the field of electronic countermeasures. The passive positioning technology can determine the position of the radiation source under the condition that it does not generate radiation, and has the characteristics of long distance of action and strong anti-interference ability. In this paper, the theory of passive lateral positioning is discussed. In the three-dimensional space, a new algorithm for moving the single station to the lateral positioning and geometric combination of fixed radiation source is established, and the error analysis and simulation are carried out. The distance of the observation station is 300km, Δβ = 0.06°, Δε = 0.01°, r = 30m, and can be calculated. That is, when the distance between the measurement target and the ground observation station is 300km, the system space positioning error is up to 320m. When the distance between the measurement target and the ground observation station is 100km, the system space positioning error is up to 115m. Therefore, the positioning accuracy of the calculation method can reach 0.12% of the distance. The experimental verification and result analysis show that the algorithm has good applicability in the field of lateral positioning of fixed radiation sources.