摘要
通过对网络非线性失真的研究,提出了一种利用FFT和PC声卡来测试网络非线性失真的新方法,经误差分析和实践检验,证明用该方法可实现较高精度、低成本、简单和快速的网络非线性失真度测试的目的。
With the study on the nonlinear distortion of network, this paper presents a new method to test the nonlinear distortion of network with FFT and PC audio card. By means of error analysis and practical examination, it has been proved that the method can achieve the goal which can test the nonlinear distortion of network with features of high precision, low cost, and being simple and fast.
出处
《天津职业院校联合学报》
2009年第2期46-50,共5页
Journal of Tianjin Vocational Institutes
关键词
失真度
FFT
声卡
同步
误差
distortion degree
FFT
audio card
synchrony
error
