基于TMS320VC5402指纹识别系统设计.doc

湖 北 民 族 学 院 信息工程学院 DSP课程设计报告书 题目: 基于TMS320VC5402的指纹识别系统 摘 要 数字信号处理器(DSP)是指以数值计算的方法对数字信号进行处理的芯片。它具有处理速度快、灵活、精确、抗干扰能力强、体积小、使用方便等优点。DSP应用于指纹识别已经成为一个新的科技领域和独立的学科体系,当前已形成了有潜力的产业和市场。本文选定100MHz DSP TMS320VC5402作为指纹信号的处理器,利用其流水线编码的操作特点,并结合指纹识别技术,实现基于DSP CCS2.2的指纹识别预处理系统。CCS 2.2(Code Composer Studio)是一种针对标准TMS320调试接口的集成开发环境(IDE),由TI公司于1999年推出。 指纹识别作为生物特征识别的一种，有其不可比拟的优点。由于可以随身携带这种特殊的“印章”，所以受到越来越多人的重视。本系统使用TI的TMS320VC5402（以下简称5402）作为核心。DSP与单片机相比，多用于算法比较复杂，乘加运算量比较大的场合。该芯片为一款定点的DSP，它具有高达100MIPS的运算能力，同时具有优化的CPU结构和一系列的智能外设。下面着重讨论基于该芯片的系统设计。 Abstract Digital signal processor (DSP) refers to the method of numerical calculation of digital signal processing chip.It has high processing speed and flexibility, accuracy, strong anti-jamming capability, small volume, convenient, etc.. DSP applied to the fingerprint identification technology has become a new and independent discipline system has been formed, and the potential of the market and industry. This 100MHz selected TMS320VC5402 DSP as the signal processor, using the fingerprint of the assembly code, combining the characteristics of operation fingerprint identification technology, realizing the fingerprint identification based on DSP CCS2.2 pretreatment system. CCS 2.2 (Code Composer Studio) is a standard interface for TMS320 debugging integrated development environment (IDE), by TI company in 1999. The fingerprint identified as biometrics, its incomparable advantages. Due to the special can carry the stamp, more and more peoples attention. This system USES the TMS320VC5402 TI (hereinafter referred to as the core 5402). DSP microcontroller, compared with the algorithm is more complex, used by calculation and comparison of the big occasion. This chip is a fixed-point DSP, it has 100MIPS up the operation ability, also has the optimization of the structure and a series of intelligence CPU peripherals. Based on the chip below emphatically discussed the system design. Keywords: DSP TMS320VC5402 fingerprint identification 目 录 1 任务提出与