一种正弦波发生器的设计方法

Design Method of Sine Wave Generator

介绍一种用数字方式获得正弦波的方法,该方法不需要使用存储器,完全通过计算得到正弦波的波形数据,而且得到正弦波的同时还可以得到相位正交的余弦波。通过实验仿真表明调节电路中的参数还可以调节输出幅度、频率和精度。这种电路可以用于离散傅里叶变换的计算和某些数字通信系统中,为正弦波、余弦波的设计提供一种新思路。

This text introduces a kind of acquiring the sine wave with the arithmetic figure method,and gets sine a cosine for at the same time. Passing the experiment imitates the true expressing regulates the parameter in the electric circuit can also regulate the exportation range,frequency with the accuracy. This kind of electric circuit can be used for FFT and some digital communication,and providing a kind of new way of thinking for the design of the sine and cosine wave.