Narrow band interference immunity of correlation receiver with BOC and MSK-BOC modulation type

Narrow band interference immunity is estimated for correlation receiver of spread-spectrum signals with BOC and MSK-BOC modulation. Comparative analysis for BOC(n) and MSK-BOC(n) signals is given. It's shown, that interference suppression in correlator is primarily determined by pseudo-random sequence length, and less by modulation format (I/Q signal form). When the pseudo-random sequence length is the same, MSK-BOC modulation gives benefit of 2 dB and more in comparison with BOC modulation.