Research on Positive and Negative Slope LFM Signal Joint Coding Communication Technology based on Fractional Fourier Transform

摘要：

In order to improve communication rate and frequency band efficiency of the underwater acoustic (UWA) communication system, a new method using positive and negative slope LFM signal joint coding based on fractional Fourier transform (FRFT) was presented in this paper. And this scheme had strong anti-noise performance and good robustness. Under the premise of not occupying additional system frequency band resource, the slope of LFM signal was used as coding information, and the fractional Fourier transform was used as demodulation method at receiving end. The Rake receiver was proposed to suppress the intersymbol interference (ISI) arising from multipath effect of the UWA channel. Through the simulation and water pool experiment, the communication rate can reach up to 1600bit/s.

关键词： Fractional Fourier Transform (FRFT) underwater acoustic communication (UWA) inter-symbol interference (ISI) Rake receiver

作者: Yun Chen Yilin Wang Jidan Mei Ping Cai

作者单位: National Laboratory of Underwater Acoustic Technology Harbin Engineering University Harbin, China

会议类型: 国际会议

会议名称: 2011 3rd International Conference on Advanced Computer Control(2011年IEEE第三届高端计算机控制国际会议 ICACC2011)

会议地点: 哈尔滨

会议语种:英文

页码: 362-366

在线出版日期: 2011-01-18（万方平台首次上网日期，不代表论文的发表时间）