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数字信号处理形成为一门分支学科是从六十年代末开始的。由于快速付里叶变换(FFT)和数字滤波器的问世,人们发现把模拟信号转换成数字信号后,使用计算机来处理有很多优点,从而逐步形成了用计算机处理信号的一门分支科学。数字信号处理器(简称DSP)八十年代初在美国最先进入市场。在微电子专家、信号处理专家和计算机专家共同合作下,一种适合于信号处理的专用计算机诞生了,这就是数字信号处理器。用它来作数字信号处理,例如快速付里叶变换或数字滤波等,要比通用微机(PC—286/386/486)快2～3个数量级。 社会生活中所遇到的信号都能数
The formation of a branch of digital signal processing began in the late 1960s. Due to the advent of fast Fourier transform (FFT) and digital filters, it has been found that computer processing has many advantages after converting an analog signal to a digital signal, and thus gradually forms a branch science for processing signals by a computer. Digital signal processor (referred to as DSP) the early eighties in the United States the first to enter the market. In cooperation with microelectronics specialists, signal processing specialists and computer experts, a special purpose computer suitable for signal processing was born. This is the digital signal processor. Use it for digital signal processing, such as fast Fourier transform or digital filtering, than the general-purpose microcomputer (PC-286/386/486) 2 to 3 orders of magnitude faster. The signals encountered in social life can count