基于DDS技术的可叠加谐波的正弦信号源设计

Design of Sine Signal Source Which can Overlapped Harmonic Based on DDS Technology

给出了一种基于DDS技术的正弦信号源设计方案,以提高信号源的精度指标.提出了系统的软硬件设计及实现的方法,信号源以DSP芯片TMS320C6711和FPGA芯片XC3S1500为核心,可产生高精度低频正弦信号,信号频率、相位、幅度均可调节,且能够叠加2～21次谐波.

To improve the accuracy of the sine signal source , gived a design method of sine signal source based on DDS technology, presented the design of hardware and software of the system, by using TMS320C6711 and XC3S1500 for the core of the signal source, high-accuracy low frequency sine signal can be generated, the frequency, the phase and the amplitude of the signal can be adjusted, 2-21 harmonic can be overlapped.