摘要
采用直接数字频率合成技术(DDS),通过数字控制相位信号的增量在FPGA中实现了频率可调的信号发生器。所产生的信号不仅幅度频率灵活可调,而且具有频率分辨率高、频率切换速度快、相位噪声低等优点,因而在有关的科学试验中具有重要意义。
A signal generator was designed with the aid of the Direct Digital Frequency Synthesis technology （DDS）, by the digital controlling the increment of signal phase and on a FPGA system. The signal produced by this generator has many advantages, such as convenience for changing magnitude and frequency, high resolution, high frequency changing speed, reducing phase noise and so on.
出处
《山西农业大学学报（自然科学版）》
CAS
2007年第3期329-332,共4页
Journal of Shanxi Agricultural University(Natural Science Edition)
