本文選題：OMAP + 信號(hào)處理平臺(tái)　； 參考：《哈爾濱工程大學(xué)》2012年碩士論文

【摘要】：信號(hào)處理是水聲應(yīng)用中的重要手段，隨著時(shí)代發(fā)展和任務(wù)的增加，水下平臺(tái)對(duì)信號(hào)處理性能的要求也日益增加。多節(jié)點(diǎn)信號(hào)處理平臺(tái)也成為水聲應(yīng)用中的重要的硬件支持。可以為浮標(biāo)、水下潛器和水下工作平臺(tái)等提供相應(yīng)支持。本論文就是針對(duì)水下無(wú)人潛器完成水下信號(hào)處理任務(wù)，做出了信號(hào)處理平臺(tái)的設(shè)計(jì)，研究如何實(shí)現(xiàn)低噪聲、高可靠性、低功耗和節(jié)點(diǎn)間的通信。 本信號(hào)處理平臺(tái)主要包括底板、信號(hào)處理板、交換機(jī)板和平臺(tái)監(jiān)控板部分。采用OMAP-L137作為主芯片，其中ARM完成網(wǎng)絡(luò)和DSP的控制，，DSP實(shí)現(xiàn)信號(hào)處理功能。在ARM中移植了Linux操作系統(tǒng)，通過(guò)編寫驅(qū)動(dòng)程序和應(yīng)用程序使ARM完成了網(wǎng)絡(luò)通信，DSP程序加載，DSP電源及可靠性控制和與DSP的數(shù)據(jù)通信。DSP主要完成對(duì)采集到的信號(hào)的數(shù)據(jù)處理和信號(hào)發(fā)射功能。 本論文首先介紹了本平臺(tái)的總體設(shè)計(jì)方案，然后對(duì)平臺(tái)的每部分硬件的設(shè)計(jì)進(jìn)行了分析，從器件選擇到每個(gè)部分的設(shè)計(jì)實(shí)現(xiàn)都做出了詳細(xì)的分析。在此基礎(chǔ)上對(duì)Linux操作系統(tǒng)的構(gòu)建進(jìn)行了說(shuō)明，包括Ubl程序的移植、U-boot的移植、Linux內(nèi)核移植、Ramdisk文件系統(tǒng)的制作和驅(qū)動(dòng)程序的掛載運(yùn)行，完成了一套完整的Linux操作系統(tǒng)，并對(duì)DSP的啟動(dòng)、控制做出了說(shuō)明。最后對(duì)整個(gè)平臺(tái)的軟件部分做出了設(shè)計(jì)，分為L(zhǎng)inux、DSP和MSP430三部分，分析了各個(gè)模塊的的工作流程，完成了整套信號(hào)處理平臺(tái)的代碼。 本平臺(tái)通過(guò)了湖上實(shí)驗(yàn)和海上實(shí)驗(yàn)，能很好地完成了通信和信號(hào)處理任務(wù)，取得了預(yù)期的目標(biāo)。
[Abstract]:Signal processing is an important means in underwater acoustic applications. With the development of the times and the increase of tasks, the requirements of underwater platforms for signal processing performance are increasing day by day. Multi-node signal processing platform has also become an important hardware support in underwater acoustic applications. It can provide corresponding support for buoy, underwater submersible and underwater working platform. In this paper, a signal processing platform is designed to accomplish underwater signal processing for AUV, and how to realize low noise, high reliability, low power consumption and communication between nodes is studied. The signal processing platform mainly includes bottom board, signal processing board, switch board and platform monitoring board. OMAP-L137 is used as the main chip, in which arm completes the network and DSP control DSP to realize the signal processing function. The Linux operating system was transplanted in arm. By writing the driver and application program, arm completes the network communication and DSP program loading DSP power supply and reliability control, and the data communication with DSP. DSP mainly completes the data processing and signal transmitting function of the collected signal. This paper first introduces the overall design of the platform, and then analyzes the hardware design of each part of the platform, from device selection to each part of the design and implementation of a detailed analysis. On this basis, the construction of Linux operating system is explained, including the transplantation of Ubl program and the porting of Linux kernel to Ramdisk file system and the mounting of driver. A set of complete Linux operating system is completed, and the DSP is started. The control is described. Finally, the software of the whole platform is designed, which is divided into three parts: Linux DSP and MSP430. The work flow of each module is analyzed, and the code of the whole signal processing platform is completed. The platform has passed the lake experiment and the sea experiment, which can accomplish the communication and signal processing tasks well, and achieve the expected goal.
【學(xué)位授予單位】：哈爾濱工程大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TP368.1

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