三网融合系统基带高速处理板的设计与实现

发布时间：2018-07-11 16:36

本文选题：三网融合 + 模块设计　；参考：《西安电子科技大学》2014年硕士论文

【摘要】：模拟技术到数字技术的快速转变深刻影响着人们的生活,它使得语音、图像和数据等都以二进制的形式存储和传输。三网融合便在这种技术支撑下应运而生。虽然信息的形态是多种多样的,传输的载体也是千变万化的,但是三网融合却使得在这些不同的载体的组合上可以传输各种形式的信息,这也正是三网融合的本质。在进行三网融合信息处理过程中不可避免要用到基带信号的处理,也即对从信源发出的没有经过频谱搬移和变换的原始电信号的处理。基带高速处理硬件板的设计和实现不仅对基带信号本身的处理有着关键作用,也同样能够影响到整个控制系统。在这其中也不可避免的涉及到许多高速信号的处理问题。故此本文又特意介绍了一些高速数据的信号完整性问题并对此进行了相应的仿真。整个庞大的三网融合验证平台系统是由基带处理板、双向射频版以及调谐板、控制板和解码板等构成。但是本文只重点介绍了其中的基带高速处理硬件平台的总体设计。其中包含了系统的软硬件设计,并且着重介绍了电源部分的处理;其次完成了PCB的板级设计,元器件的布局以及PCB的布线,以及高速信号的处理和调试等内容。本文完成的工作主要体现在以下几个方面:1、分析三网融合系统的结构以及各个模块的功能定义,了解基带高速处理板所要达到的性能,做初步的设计构思。2、根据以上的分析提出了以TI公司的基于达芬奇技术的数字媒体处理芯片TMS320DM8168作为ARM端的主芯片,以Altera公司的5SGSMD5K3F40C4N为接收其他板传输过来的信号的处理芯片的设计方案。与此同时,设计出基带高速处理板的整体架构以及外围结构。3、利用Cadence Spb16.3软件完成了该板子的原理图设计和PCB走线。在设计过程中采用了模块化设计方法,从电源部分、时钟部分、配置部分和外设部分等进行设计。4、在PCB布局完之后着重考虑了部分高速信号线的信号完整性问题,以得到最佳的信号传输效果。5、随后又焊接了完整的PCB板,对其电源部分做了详细的调试说明,最后完成软硬件环境的搭建和联合调试。
[Abstract]:The rapid transformation from analog technology to digital technology has a profound impact on people's lives. It makes voice, image and data stored and transmitted in binary form. Three networks fusion in this kind of technology support came into being. Although the form of information is varied and the carrier of transmission is changeable, the combination of three networks makes it possible to transmit various forms of information in the combination of these different carriers, which is the essence of the triple network convergence. The processing of baseband signal is inevitable in the process of tri-network fusion information processing, that is, the processing of the original electrical signal without spectrum shift and transformation sent from the source. The design and implementation of the baseband high-speed processing hardware board not only plays a key role in the baseband signal processing itself, but also affects the whole control system. It is inevitable to deal with many problems of high-speed signal processing. Therefore, the signal integrity of some high-speed data is introduced and simulated. The whole system is composed of baseband processing board, bidirectional radio frequency plate, tuning board, control board and decoding board. But this paper only introduces the overall design of the baseband high-speed processing hardware platform. It includes the hardware and software design of the system, and introduces the processing of the power supply part. Secondly, the PCB board level design, the layout of components and PCB wiring, as well as the high-speed signal processing and debugging are completed. The work accomplished in this paper is mainly reflected in the following several aspects: 1, analyzes the structure of the three-network fusion system and the functional definitions of each module, and understands the performance of the baseband high-speed processing board. Based on the above analysis, a digital media processing chip TMS320DM8168 of TI Company based on da Vinci technology is proposed as the main chip of arm. Using 5SGSMD5K3F40C4N of Altera Company as the design of processing chip to receive the signal transmitted from other boards. At the same time, the whole architecture and peripheral structure of the baseband high-speed processing board are designed. The schematic design and PCB wiring of the board are completed by Cadence Spb16.3 software. In the process of design, the modular design method is adopted, which includes power supply, clock, configuration and peripheral. After the PCB layout is finished, the signal integrity of some high-speed signal lines is considered emphatically. In order to get the best signal transmission effect. 5, the PCB board is welded and the power supply part is debugged in detail. Finally, the hardware and software environment is built and the joint debugging is completed.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN948.3;TN911.7

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