在matlab环境下编写的完整程序。其中包含DA AD 转换-Written in the matlab environment, the full program. Which contains the DA AD conversion

delta sigma AD转换模型的matlab工具箱，包含调制，滤波，计算信噪比等多多方面内容，非常全面。用之进行相关研究，事半功倍。-delta sigma is the AD conversion models matlab toolbox, including modulation, filtering, calculation of signal to noise ratio, etc. a lot of aspects, very comprehensive. Used more

AD转换的Matlab程序，将输入电压转换成时间(脉冲宽度信号)或频率(脉冲频率)，然后由定时器/计数器获得数字值-AD conversion of the Matlab program, the input voltage is converted into a time (pulse width signal) or a frequency (pulse frequency), and then to obtain a digital value by the timer/counter

基于matlab的语音回波抵消系统仿真设计中A/D转换部分程序-Voice echo cancellation system based on matlab simulation in the design of A/D conversion part of the program