A Near-Optimal Receiver for MSK Modulation Under Symmetric Alpha-Stable Noise

作者：Zhou, Kaijie^*; Wang, Huali; Hao, Huan; Luo, Zhangkai

来源：IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2018, E101A(5): 850-854.

DOI：10.1587/transfun.E101.A.850

• alpha-stable noise
• atmospheric noise
• MSK modulation
• matched myriad filter

This paper proposes a matchedmyriad filter based detector for MSK signal under symmetric alpha-stable (S alpha S) noise. As shown in the previous literatures, S alpha S distribution is more accurate to characterize the atmospheric noise, which is the main interference in VLF communication. MSK modulation is widely used in VLF communication for its high spectral efficiency and constant envelope properties. However, the optimal detector for MSK under S alpha S noise is rarely reported due to its memory modulation characteristic. As MSK signal can be viewed as a sinusoidal pulse weighted offset QPSK (OQPSK), a matchedmyriad filter is proposed to derive a near-optimal detection performance for the in-phase and quadrature components, respectively. Simulations for MSK demodulation under S alpha S noise with different alpha validate the effectiveness of the proposed method.

• 出版日期2018-5
• 单位淮阴师范学院