Fig. 1From: Multiple-Symbol combined differential detection for satellite-based AIS SignalsBER curves of MSCDD-PCCD with different length of combined symbols. The BER of 2 bits MSCDD-PCCD is below 10−3 when the NSNR is 11 dB. Additionally, the decoding performances approach those of the coherent detection as the length of the combined differential symbols increases, but the promotion is less and lessBack to article page