Design for a dual-system satellite navigation anti-jamming receiver

In order to ensure a satellite navigation receiver is able to work under the navigation warfare environment, the paper proposes a design for dual system anti-jamming satellite navigation receiver. Space-time anti-jamming technology is analyzed, which takes linearly constrained minimum variance (LCMV) as the optimal criterion, weighted by power inversion, enhanced anti-jamming capability of the receiver. Digital beam forming technology with a stronger anti-jamming performance is realized by feedback of satellite orientation information from baseband. Simulations show that traditional space-time interference suppression technology can realize 70dB anti jamming capability for a interference, and by introduction of the beam forming technology, the anti-jamming capability for a interference can achieved 85dB.