器采用数字波形合成技术,通过硬件电路和软件程序相结合,可输出自定义波形,如正弦波、方波、三角波、三角波、梯形波及其他任意波形，波形的频率和幅度在一定范围内可任意改变。波形和频率的改变通过软件控制，幅度的改变通过硬件实现。介绍了波形的生成原理、硬件电路和软件部分的设计原理。本系统可以产生最高频率798.6HZ的波形。该信号发生器具有体积小、价格低、性能稳定、功能齐全的优点-Uses digital waveform synthesis technology, hardware and software combination that can output custom waveforms such as sine, square, triangle, triangle, trapezium spread to other arbitrary waveform, waveform frequency and amplitude within a certain range can be arbitrarily changed. Waveform and frequency are changed by software control, the magnitude of change implemented by hardware. Describes the waveform generation principle, the hardware circuit and software part of the design principles. The system can generate the highest frequency 798.6HZ waveform. The signal generator has a small size, low price, stable performance, fully functional advantages