基于频域采样的DFT纺织纱条波谱分析新算法

波谱分析是纺织工业中检测纱线质量的关键技术，长时间以来波谱分析均采用滤波方法实现，但采用模拟滤波法，可靠性和稳定性得不到保证，而采用数字滤波，其算法复杂且实现比较困难。针对这一问题，本文提出基于频域采样的DFT算法直接计算分析纱条信号的波谱，从而避免了大量滤波器的设计与实现问题，具有算法复杂度低与计算量小的特点，并用MATALB软件仿真验证了该算法的可行性。

New algorithm for the DFT spectrum analysis of textile yarn based on frequency-domain sampling

Spectral analysis is the key technology in the detection of yarn quality in the textile industry,and usually uses the filter to realize over the long time.But using analog filtering,reliability and stability can not be guaranteed;using digital filtering,its algorithm is complex and more difficult to achieve. In response to this problem,this paper presents a new spectral analysis method,using DFT algorithm based on sampling in the frequency domain to calculate and analyze the spectral signal,so as to avoid a...