dsp课程设计报告.doc

基于DSP的FFT算法的实现 摘 要 数字信号处理（Digital Signal Processing，简称DSP）是一门涉及许多学科而又广泛应用于许多领域的新兴学科。DS P有两种含义：Digital Signal Processing（数、Digital Signal Processor（数字信号处理器）。数字信号处理是利用计算机或专用处理设备，以数字形式对信号进行采集、变换、滤波、估值、增强、压缩、识别等处理，以得到符合人们需要的信号式数字信号处理 Digital?signal?processing?(DSP)?is?involves?many?disciplines?and?widely?applies?in?the?many?domain?emerging?disciplines.?DSP?has?two?kinds?of?meanings:?digital?Signal?Processing,?Digital?Signal?Processor.The?digital?signal?processing?uses?the?computer?or?the?special-purpose?handling?equipment,?carries?compressing?and?so?on?gathering,?transformation,?filter,?estimating,?value,?enhancement,?compression,?recognition?by?the?digital?form?,to?obtain?the?signal?form?which?the?people?need. The appearance of DSP chip makes the realization method of FFT becomes more convenient. Since most DSP chips are multiplying and accumulating operations in a single instruction period, and provides a special FFT instruction, the FFT algorithm in the DSP chip to achieve faster.FFT algorithm is an important index to measure the performance of DSP chips, is very important to improve the operation speed of the FFT algorithm. The realization of FFT algorithm in DSP chip, all should be allowed provided by DSP soft, the hardware resources. Limited resources how to use DSP chip, reasonably arrange the storage space used is very important. Keyword: Digital?signal?processing? FFT algorithm 目 录 第一章 设计思路.....................................................................................1? 1.1 DSP芯片介绍.....................................................................................1? 1.2 FFT算法的DSP结构?.......................................................................2? 第二章 设计原理?....................................................................................4 2.1?快速傅里叶变换FFT的原理?...........................................................4 2.2?FFT算法的实现?...........................