基于FPGA的WCDMA實(shí)時(shí)信號處理設(shè)計(jì)
[Abstract]:Modern wireless communication technology pays more and more attention to real-time signal processing. In the last decade or so, the technology of VLSI (VLSI) has developed very rapidly, and the integration capability and its complexity have become more and more high. This effectively promotes the application of digital integrated circuits in the field of real-time signal processing in communication systems. At present, FPGA manufacturers provide a large number of high-performance FPGA chips for different needs, such as efficient signal processing, high-speed transmission and control flexibility. However, the development of FPGA is very complicated and skillful. Based on the wideband code division multiple access (Wideband Code Division Multiple) access WCDMA) communication platform, this paper studies the efficient use of large scale digital integrated circuits to realize high speed real-time signal processing. The main achievement is: 1. The overall design and implementation of FPGA chip are studied. According to the characteristics of the real-time signal processing system, the overall development flow of the system on FPGA is put forward. Taking the physical layer channel processing of WCDMA as an example, the overall design and implementation of FPGA for random access channel processing of uplink and downlink monitoring are carried out, and the techniques and methods used in the overall design of FPGA are summarized. The modularization design and implementation of FPGA chip are studied. Based on the modular design method of FPGA, this paper designs and implements two modules of WCDMA physical layer: prefix code detection module and chip synchronization module, and summarizes the common skills and methods of modularization design. The standard design method of FPGA in real-time signal processing system is studied. Based on the characteristics of real-time signal processing and the accumulation of scientific research practice, this paper summarizes the basic principles of FPGA development in signal processing system, common techniques, and the method of adding region constraints to the design by using the integration tool PlanAhead. A general testing method for system behavior testing of FPGA development platform is developed. The data information on the FPGA internal signal line is transmitted to the host computer by the FPGA development platform and the host computer through Gigabit Ethernet, and the data uploaded by the upper computer is tested and analyzed by the upper computer. The self-test in FPGA design is studied, and a simple and feasible test method is given. In the design of FPGA system, the test vector generation module needed by self-test is added to ensure that the input data can be provided in the chip without external input, and the logic function inside the chip can be tested and observed.
【學(xué)位授予單位】:西安電子科技大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2014
【分類號】:TN929.53;TN791
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