Performance of frequency hopped MSK signals in multitone jamming and additive white Gaussian noise

Because of advantageous spectral properties, coherent minimum shift keying (MSK) is attractive for electronic counter-counter measures (ECCM) systems where high data throughput is required. These high rate ECCM systems typically use frequency-hopped (FH) spread-spectrum techniques to enhance antijam capabilities. The performance of MSK signals combined with FH in simultaneous optimized partial-band multitone jamming and additive white Gaussian noise (AWGN) is examined. The signals are assumed to be coherently detected. Performance is evaluated, assuming a worst-case jammer strategy, in terms of the probability of bit error. The analysis is performed for two different frequency-hopping patterns. The results show that the performance of a random hopping pattern exhibits improved performance over a fixed hopping scheme