Design and Simulations of Underwater Acoustic Communication Receiver without PLL

摘要：

A kind of receiver is designed for underwater acoustic communications to cope with the combined limitations of time-varying multipath and phase instabilities of the underwater channel. After quadrature demodulation and mathematical transform, the carrier phase error can be eliminated. As phase-locked loop (PLL) is not needed to track the carrier phase shift during equalization, the computational complexity can be reduced. Simulations on two different types of multipath and phase shift channels show that good performance can be achieved for the simple channel model, while satisfactory results can be obtained through multichannel diversity combining for the other channel.

关键词： multipath phase-locked loop equalization diversity

作者: LI Hong-juan SUN Chao LI Jing-hua

作者单位: Institute of Acoustic Engineering Northwestern Polytechnical University Xian, Shaanxi, 710072, P.R. School of Electronic and Information Northwestern Polytechnical University Xian, Shaanxi, 710072, P

会议类型: 国际会议

会议名称: 2005年无线通信、网络和移动计算国际会议

会议地点: 武汉

会议语种:英文

页码: 1415-1417

在线出版日期: 2005-09-23（万方平台首次上网日期，不代表论文的发表时间）