摘要
本文重点论述了一种应用DDS技术来实现调制信号发生器的设计方案。该方案选用Altera公司生产的ACEX系列FPGA——EP1K50芯片实现,能够输出正弦、方波、锯齿波、三角波、白噪声、扫频正弦、双正弦;频率范围:正弦0.5Hz^1MHz;方波、锯齿波、三角波0.5Hz^100kHz;频率分辨率可达到0.0058Hz。本文介绍了该方案各功能模块的设计实现,设计了该方案的软件和硬件,最终的测量结果表明实现了该方案的主要功能。
This paper describes the implementation of modulate signal generator based on the direct digital frequency synthesis technology. This plan selects ACEX, which is from Altera Corporation produces series FPGA-The EP1K50 chip realization and can output sine, square-wave, saw-tooth wave, triangular wave, white noise signals, sweeps the frequency sine, the double sine; Frequency range： Sine 0. 5 Hz- 1 MHz; Square-wave, saw-tooth wave, triangular wave 0. 5 Hz-100 kHz;The differentiability rate of frequency may achieve 0. 005 8 Hz. It introduces this plan various functions module design realization, designs the software and the hardware, the final measurement result indicated realizes this plan main function.
出处
《国外电子测量技术》
2008年第2期19-22,共4页
Foreign Electronic Measurement Technology
关键词
频率合成
调制信号发生器
现场可编程门阵列
direct digital frequency synthesis （DDS）
modulate signal generator
field programmable gate array
