首先对数字信号处理进行了概述，介绍了DSP的基本知识；接着介绍了可编程DSP芯片，对DSP芯片的发展、特点、分类、应用和发展趋势作了论述；然后介绍DSP系统，对DSP系统的构成、特点、设计过程以及芯片的选择进行了详细的介绍；最后对DSP产品作了简要介绍。-First, the digital signal processing provides an overview describes the basics of DSP　then introduced the programmable DSP chip, the development of DSP chips, characteristics, classification, application and development trends are discussed　then introduces DSP system, the DSP system composition, characteristics, design process and the selection of the device for a detailed descr iption　and finally a brief introduction of DSP products.