Performance of satellite communication system with FH-MFSK under various jamming environments

Military satellite communication can be operated with various levels of satellite onboard processing. In this paper, the BER performances of the bent pipe transponder (DRT), dehop only transponder (DOT) and dehop and rehop transponder (DRT) systems with FH-MFSK modulation are compared in the presence of full band, partial-band noise jamming and multi-tone jamming. Further, this paper investigates the BER by changing the data rates, spreading bandwidth and jamming EIRP. The numerical results show that DRT outperforms BPT and DOT, and, DOT is less sensitive to uplink jamming EIRP under full-band jamming strategy than DRT In the partial band jamming case, the worst case rho, i.e., a ratio of the spreading bandwidth to the jamming bandwidth is also changed according to the variation of the data rate, and the BER of DRT is more sensitive to different rho values than DOT. Among various jamming strategies, the performance in MTJ is shown to be the worst.