CAJ | 학술논문

基于改善传统正弦信号源价格昂贵,低频输出时性能不好且不便于自动调节的目的。采用AT89C51单片机,结合编程和软件查表的方法读取经离散化处理的波形信号。通过D/A把信号转化并还原所需的波形信号。进行了proteus计算机软件仿真,得到了与理论相应的锯齿波、方波、正弦波信号并实现了各种波形的自由切换以及频率、相位的改变和多相波的产生。
기우개선전통정현신호원개격앙귀,저빈수출시성능불호차불편우자동조절적목적。채용AT89C51단편궤,결합편정화연건사표적방법독취경리산화처리적파형신호。통과D/A파신호전화병환원소수적파형신호。진행료proteus계산궤연건방진,득도료여이론상응적거치파、방파、정현파신호병실현료각충파형적자유절환이급빈솔、상위적개변화다상파적산생。
A sine signal generator based on AT89C51 is developed for improving the expensive price and not easy to automatic regulation when output the low-frequency of traditional signal generator.The method of programming and software look-up table is been used to read the signal which has been processed with dispersing processing.And the signal will be restored by D/A.In order to obtained Sawtooth-wave,square-wave,sine signals,and the simulation by the computer software Proteus is been done.Their frequency,amplitude and phase and different waveforms can be changed freely.And those results consistent with the theory.