摘要
对直接数字频率合成器（ＤＤＦＳ）中各类杂散源进行了讨论，详细分析了因取样和量化形成的杂散，提出了各类杂散在最坏的情况下的幅值计算方法，为直接数字频率合成器的设计计算提供了新的途径。
The sources of spurious signals in DDFS are discussed in this paper. The spurious signalsdue to sampling and quantization is detailly analysed, then some methods are provided to calculate thelevel of those signals under the most bad conditions. A new way to synthesize DDFS based on the analysisof spurious signal in DDFS is provided.
出处
《四川轻化工学院学报》
1999年第2期46-49,共4页
Journal of Sichuan Institute of Light Industry and Chemical Technology
关键词
直接数字
频率合成
杂散
合成器
DDFS
DDFS, spurious signals, phase truncation, quantization error
