CAJ | 학술논문

系统的总结了时频分析的原理，对常用信号时频分析方法进行了对比研究。谱分解的算法主要研究了Hilbert变换、 S-变换、小波变换、 Gabor变换、 HHT、匹配追踪等。系统的介绍了每种方法的原理，理论上的优势和短处。做了详细的模拟信号对比试验，从不同的侧面展示每种方法得到频谱图，对比总结。较为直观的，全面的应用。通过反复调试，验证每个参数在时、频域中不同的作用。
계통적총결료시빈분석적원리，대상용신호시빈분석방법진행료대비연구。보분해적산법주요연구료Hilbert변환、 S-변환、소파변환、 Gabor변환、 HHT、필배추종등。계통적개소료매충방법적원리，이론상적우세화단처。주료상세적모의신호대비시험，종불동적측면전시매충방법득도빈보도，대비총결。교위직관적，전면적응용。통과반복조시，험증매개삼수재시、빈역중불동적작용。
The principle of time-frequency Analysis is elaborated detailedly , The common methods of time-frequency analysis are comparatively analyzed. The algorithms of spectral decomposition are studied , including Hilbert transform, S-transform, wavelet transform, Gabor transform, HHT, and matching pursuit, etc. The principles, advantages and shortcomings of each method are introduced in details. Contrast tests of analog signals have been done , Every frequency spectrum image is showed from different sides. The functions of every parameter in time and frequency domains are verified through debugging.