Statistical Shallow Water Acoustic Channel Modelling and BER Performance Investigation of CI-OFDM
作者单位：华南理工大学
学位级别：硕士
导师姓名：季飞
授予年度：2019年
学科分类：082403[工学-水声工程] 08[工学] 0824[工学-船舶与海洋工程]
摘 要：Underwater Acoustic（UWA）Communication uses acoustic waves to transmit and receive data under the *** radio waves suffer from high *** waves suffer from heavy *** waves are a better communication mode for underwater *** communication is challenging due to impairments,including attenuation,multipath propagation,noise and Doppler *** channels are one of the most stimulating communication *** varying multipath fading,long delay spread,significant Doppler spread,and frequency-dependent path loss are the focal characteristics of such *** channel measurement is obtained through experiments which are very costly and restricted to definite settings such as water depth,transceiver distance transceiver depth,and relative *** order to design and analyze UWA channels,computer simulations give us enhanced degrees of freedom to efficiently simulate and analyze UWA *** thesis presents a statistical shallow water channel model for moving transmitter and receiver based on analytical *** do so,a model of Shallow Water Acoustic（SWA）Channel Impulse Response（CIR）is derived first to capture most of the physical properties of shallow *** we find the Angle of Arrival（AoA）for paths with different numbers of surface and bottom reflections and the Probability Density Function（PDF）of（AoA）.To find closed form expressions for the statistics of the CIR,we approximate the PDFs of AoA with half-circular Rician *** mathematical controllability of this new PDF,analytical statistics including autocorrelation function and scattering function are *** and high data rate UWA communications are hard to achieve because of multipath propagation,frequency selective fading and limited *** is an appealing technique for UWA communication with three obvious advantages: good performance against frequency multipath interference,ability to combat the frequency selective fadin
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