An Anti-Electromagnetic Interference Simulation Platform for Navigation Receiver

The main work of this paper is to build a simulation platform for studying the anti-electromagnetic interference problem of navigation receiver. The simulation platform includes multi-array antenna simulation module, direction of arrival (DOA) estimation algorithm, adaptive spatial filtering algorithm module and interface file reading and writing module. Aiming at the problem that the satellite signal is submerged in the interference and causing subsequent tracking and solving failure, the mode space conversion method is adopted to make the ESPRIT algorithm applicable to the uniform circular array(UCA), realizing the spatial signal two-dimensional DOA estimation, and adopting the linear constrained minimum variance criterion (LCMV) performs adaptive spatial filtering to achieve anti-jamming purposes. The simulation platform can flexibly set parameters such as the number of array elements, satellite signals and interference, which greatly facilitates the research on the anti-electromagnetic interference problem of the navigation receiver.