作者
Soad Taha Abed, Abdul-Bary Raouf Sulaiman
发表日期
2007/9/28
期刊
Al-Rafidain Engineering Journal (AREJ)
卷号
15
期号
3
页码范围
60-72
出版商
Al-Rafidain Engineering Journal (AREJ)
简介
Spectrum analysis uses Fourier analysis for detecting the spectrum of a signal. The signals to be analyzed must be stationary that their spectra must not varying with time. For signals whose spectra varying with time (non-stationary) such as seismic signal, biomedical signal, speech signal, Joint Time-Frequency Analysis (JTFA) must be used. The work is to design PC-based Joint Time-Frequency Analyzer including the methods that used to calculate and display energy in Time-Frequency domain. These methods are the Short time Fourier transforms (STFT), Wavelet Analysis (WT), and Wigner-Ville distribution (WVD). Using the Graphical User Interface (GUI) for the Matlab software, front panel is designed as control panel involving all functions and tools necessary for the analysis.
学术搜索中的文章
S Taha Abed, AB Raouf Sulaiman - Al-Rafidain Engineering Journal (AREJ), 2007