采用DDS 技术实现了基于DSP 的模拟调制实验模块。包括系统的硬件和软件设计,模拟调制原理,DSP实现模拟调制的方法,同时采用单象限正弦波形存储器结构对DDS 模块进行了改进,提高调制器的性能。-DDS technology using DSP-based implementation of the experimental module Analog modulation. Including system hardware and software design, analog modul

主要是基于DSP编程的，功能是实现波形的发生，有矩形波，正弦波，可变频率正弦波，方波-Is mainly based on DSP programming function is to realize the occurrence of the waveform, there is a rectangular wave, sine wave, variable frequency sine wave, square wave

由DSP产生正弦扫频信号和幅频特性测量的核心算法和实现过程。按此方案设计的扫频仪，可测得被测网络在20Hz~20KHz范围内的幅频特性，并将测量结果发送给PC机显示-Sine sweep signal generated by the DSP and the core algorithm of the measurement of the amplitude-frequency characteristics and implementation process. Click Sweep pro