本文選題：TD-SCDMA + 物理層　； 參考：《電子科技大學(xué)》2014年碩士論文

【摘要】：軟件無線電與傳統(tǒng)無線電相比,具有硬件模塊化、標(biāo)準(zhǔn)化,軟件可重構(gòu)、可編程等優(yōu)勢。因此,可以在軟件無線電標(biāo)準(zhǔn)硬件平臺上通過軟件編程實(shí)現(xiàn)各種通信功能。TD-SCDMA是具有中國自主知識產(chǎn)權(quán)的移動通信技術(shù),也是當(dāng)今主流的3G標(biāo)準(zhǔn)之一,已經(jīng)在商用中取得了成功。因此在軟件無線電平臺上開發(fā)TD-SCDMA波形具有現(xiàn)實(shí)意義。為此,論文采用自主研發(fā)的軟件無線電平臺(uSDR),對TD-SCDMA物理層波形進(jìn)行開發(fā)與實(shí)現(xiàn),具體工作如下:首先,分析了TD-SCDMA標(biāo)準(zhǔn)協(xié)議中的物理層部分,在協(xié)議研究的基礎(chǔ)上對TD-SCDMA物理層波形進(jìn)行目標(biāo)分析,包括約束條件、設(shè)計目標(biāo)和總體結(jié)構(gòu)三個方面;其次,從工程實(shí)現(xiàn)的角度研究了物理層關(guān)鍵技術(shù),包括直接序列擴(kuò)頻、上下變頻、時間同步和信道估計。給出了波形的設(shè)計方案,從發(fā)射機(jī)和接收機(jī)兩個方面對波形進(jìn)行設(shè)計和仿真,其中,整體仿真在信噪比為8.0dB時誤碼率已降至10-3,滿足語音通信的基本要求;最后,根據(jù)波形設(shè)計方案使用System Generator工具實(shí)現(xiàn)波形并對波形進(jìn)行驗(yàn)證。實(shí)現(xiàn)部分給出了收發(fā)兩端單元的信號描述、單元內(nèi)部流程和單元間連接關(guān)系。驗(yàn)證部分通過功能模塊驗(yàn)證和文件傳輸驗(yàn)證驗(yàn)證功能,通過誤比特率驗(yàn)證和資源占用分析來評估性能。其中,誤比特率驗(yàn)證結(jié)果比仿真低1.5dB。論文在軟件無線電平臺上設(shè)計并實(shí)現(xiàn)了TD-SCDMA物理層波形。提供了TD-SCDMA技術(shù)和軟件無線電技術(shù)學(xué)習(xí)、實(shí)踐的平臺,可用于高等院�；蚩蒲袡C(jī)構(gòu)教學(xué)實(shí)驗(yàn)。同時豐富了軟件無線電平臺的波形功能,為之后在軟件無線電平臺上進(jìn)行更加復(fù)雜的波形開發(fā)提供了參考。
[Abstract]:Compared with traditional radio, software radio has the advantages of hardware modularization, standardization, software reconfigurable and programmable. Therefore, it is the mobile communication technology with Chinese independent intellectual property that can realize various communication functions by software programming on the hardware platform of software radio standard. It is also one of the mainstream 3G standards and has been successfully used in commercial applications. Therefore, it is of practical significance to develop TD-SCDMA waveform on software radio platform. Therefore, the paper develops and implements the physical layer waveform of TD-SCDMA by using the software radio platform (uSDR), which is developed by ourselves. The specific work is as follows: firstly, the physical layer part of TD-SCDMA standard protocol is analyzed. On the basis of protocol research, the target analysis of TD-SCDMA physical layer waveform is carried out, including constraint condition, design target and overall structure. Secondly, the key technology of physical layer, including direct sequence spread spectrum, is studied from the point of view of engineering implementation. Up-down conversion, time synchronization and channel estimation. The design scheme of waveform is given, and the waveform is designed and simulated from two aspects of transmitter and receiver. The overall simulation reduces the bit error rate to 10-3 when the SNR is 8.0dB, which meets the basic requirements of voice communication. According to the waveform design scheme, the system Generator tool is used to realize the waveform and verify the waveform. In the realization part, the signal description, the flow inside the unit and the connection between the units are given. The verification part evaluates the performance through function module verification and file transfer verification function, error bit rate verification and resource occupancy analysis. The result of error bit rate verification is 1.5 dB lower than that of simulation. In this paper, the physical layer waveform of TD-SCDMA is designed and implemented on the software radio platform. TD-SCDMA technology and software radio technology learning, practice platform, can be used in colleges and universities or scientific research institutions teaching experiments. At the same time, it enriches the waveform function of the software radio platform, and provides a reference for the development of more complex waveform on the software radio platform.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN929.53

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本文編號：2092016