摘要
介绍了数字变频技术的基本原理,然后通过一个Matlab实例说明了数字变频FFT在频谱分析中的应用,结果表明,它能够有效地提高频谱的分辨率,并且具有实现简单、实用性强的优点。
The fundamental of the digital frequency conversion is introduced, then it's application in the field of spectrum analysis is shown through a Matlab example, which proves that it has higher precision, larger scope, and less restrictions.
出处
《石油化工自动化》
CAS
2003年第1期57-58,64,共3页
Automation in Petro-chemical Industry
关键词
数字变频技术
频谱分析
分辨率
信号处理
FFT频谱
digital frequency conversion
frequency precision, digital frequency conversion FFT
