水下语音通信的DSP设计
The design of underwater ultrasonic communication of speech signal
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摘要: 讨论了水下适合蛙人通讯器材采用的超声通讯的有关原理,是可以实现以最低的成本投入达到最优的通讯手段。重点进行了水下语音通讯的设计,语音信号的调制解调工作主要由DSP芯片完成。文中采用TMS320F2812完成信号处理工作。并通过Matlab对语音调制解调部分的信号处理算法进行了仿真验证,在调制解调前后,信号在波形、幅值上没有显著的变化,基本上没有失真,虽然在相位上有一定误差,但通过实际工作验证是完全可以接受的,设计获得了比较满意的结果。Abstract: In this paper,underwater ultrasonic communication is discussed and design of underwater speech communication based on DSP is carried out. Using Matlab,simulation of the speech signal modulation and demodulation is carried out. The designed functions are realized on a hardware module based on DSP TMS320F2812 with a satisfactory result.
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