基于国产处理器CK-CORE的导航SoC的设计与应用

发布时间：2018-07-02 09:49

本文选题：CK-CORE + 导航SoC芯片　；参考：《西安电子科技大学》2013年硕士论文

【摘要】：目前卫星导航基带芯片长期被国外厂商垄断,虽然随着我国北斗卫星导航系统的建设和试运行,极大的促进了我国卫星导航基带芯片的发展,但是其内嵌处理器均为国外的ARM或DSP等内核,国产嵌入式处理器在此领域内还是空白。因此开发基于国内自主知识产权CPU的卫星导航基带处理芯片显得越发的迫切和重要。本文通过研究成熟的基带捕获、跟踪、位置速度时间(PVT)算法,基于我国自主知识产权的CK-CORE处理器,设计实现了一款可满足导航定位应用的导航SoC芯片。本文首先分析主流的时域串行、码相位并行、频域并行的捕获算法,设计实现了一种结合码相位并行和频域并行的捕获算法；随后采用经典的锁定环路来实现码相位的跟踪以及载波的跟踪；通过搭建FPGA验证系统,能够有效的验证该导航SoC功能的正确性；之后通过充分掌握基于CK-CORE软件的编译和优化等方法来对该导航SoC的程序进行了移植和优化；最后基于流片后的导航SoC芯片实现并验证了一款集成射频和该导航SoC的OEM板,并对该OEM应用板进行了测试和验证。
[Abstract]:At present, satellite navigation baseband chip has been monopolized by foreign manufacturers for a long time. Although with the construction and trial operation of Beidou satellite navigation system in China, it has greatly promoted the development of satellite navigation baseband chip in China. However, embedded processors are foreign arm or DSP cores, and domestic embedded processors are blank in this field. Therefore, it is more and more urgent and important to develop satellite navigation baseband processing chip based on domestic intellectual property CPU. In this paper, we design and implement a navigation SoC chip based on CK-CORE processor based on our own intellectual property by studying mature base-band acquisition, tracking and position velocity time (PVT) algorithms. Firstly, this paper analyzes the main acquisition algorithms in time domain, code phase parallelism and frequency domain parallelism, and designs and implements a acquisition algorithm combining code phase parallelism and frequency domain parallelism. Then the classical locking loop is used to realize code phase tracking and carrier tracking, and the correctness of the navigation SoC function can be effectively verified by setting up an FPGA verification system. After that, the program of navigation SoC is transplanted and optimized by fully mastering the compilation and optimization of CK-CORE software. Finally, an integrated radio frequency and OEM board of the navigation SoC is implemented and verified based on the navigation SoC chip after streaming chip. The OEM application board is tested and verified.
【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】：2013
【分类号】：TN96.1

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