The system adopts direct digital synthetic (DDS) technology for building the sine wave generator to realize continuous regulation of amplitude, frequency and phase modulation.
系统采用直接数字合成（DDS）技术构建正弦波发生器，实现幅值、频率、相位等连续调节；
The Taguchi method is studied to derive calibration formulae of frequency and amplitude modulation of digital signal generator 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。
In this thesis, a Broad Band signal generator based on noise frequency modulation for radar is studied.
本课题主要研究了对雷达信号进行干扰的宽带调频噪声信号源。
In this thesis, a Broad Band signal generator based on noise frequency modulation for radar is studied.
本课题主要研究了对雷达信号进行干扰的宽带调频噪声信号源。
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