Abstract

In order to improve the anti-jamming ability of frequency hopping (FH) system, a low-density parity-check (LDPC) coded SFH/BPSK anti-jamming communication system is established in this paper, and the simulations of the antijamming performance are carried out. Firstly, the system model which is used in simulations is established. Then, the antijamming ability against partial band jamming (PBJ) with different jamming factors is simulated and compared using different coding parameters. At the end, the superiority of the combination of LDPC codes and FH systems is proved, the effect of code rate and code length on the proposed system model is measured, and some numerical results of the anti-jamming performance are obtained, which can be used as guidance by determining applicable coding parameters for adaptive antijamming LDPC coded FH systems.

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