The principle of using ISP technology to implement the PC card based programmable control coded digitalsignalgenerator is introduced.
主要阐述了一种利用ISP(在系统可编程)技术实现PC卡式可程控数字编码信号发生器的原理。
2
The Taguchi method is studied to derive calibration formulae of frequency and amplitude modulation of digitalsignalgenerator in whole range in this paper.
文中在校准应用研究中采用田口方法，根据数字信号源的频率、调幅及调频试验典型值推导出全量程校准公式。
3
In addition a digitalsignalgenerator was incorporated via a DDS chip AD9850 from Analog Devices inc, featuring accurate frequency preset, quick phase transformation and low phase noise.