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The Study on Underwater Acoustic Voice Communication Platform Based on AMBE-2000 and OFDM

Author: YangWenQiang
Tutor: ZhaoAnBang
School: Harbin Engineering University
Course: Underwater Acoustics
Keywords: AMBE-2000 Underwater acoustic communication TMS320VC5509A Orthogonal Frequency Division Multiplexing
CLC: TN929.3
Type: Master's thesis
Year: 2010
Downloads: 71
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Abstract


As human development and utilization of marine accelerated pace , underwater voice communication technology, more and more attention has been paid . Applied to land-based communications technology is not able to fully applied to the field of underwater communications , underwater acoustic channel with limited communication bandwidth and time-varying , spatially variable characteristics , and therefore need to apply to adopt a sound of water the channel communication method for voice communications. Orthogonal frequency division multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) technique is a multi-carrier modulation technique , due to having a good anti- multipath debilitating performance and high spectrum efficiency and become a hot research topic in the field of wireless communication in recent years . Its greatest feature is the high transmission rate has a strong resistance to fading , inter-symbol interference and channel selectivity . Become a research focus in recent years, the field of underwater acoustic communication , but for underwater communication is still in its infancy . In this thesis is within this context , as the main design AMBE-2000 chip and TMS320VC5509A of in chip real - time voice communication voice communication system based on OFDM modulation . The four parts of the voice signal processing module , communication signal processing module , the logical control module and power module hardware design are introduced . And given the overall hardware block diagram of the system , a comprehensive , specific elaboration of the system involves hardware circuit design and logic interface . AMBE-2000 transmission come in DSP data extracted and OFDM modulation and demodulation algorithm and TLC320AIC23B register initialization and configuration , the CPLD signal transmission and processing software , AMBE-2000 initialization and configuration , the Bootloader program design , design of transmitting and receiving procedures . The last experiment After FBI to obtain satisfactory results , and further proof of the feasibility of the voice communication system .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Underwater communication ( Sonar communication)
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