JSTOR Daily

The Time Variant Discrete Fourier Transform as an Order Tracking Method

Present order tracking methods for solving noise and vibration problems are reviewed, both FFT and resampling based order tracking methods. The time variant discrete Fourier transform (TVDFT) is ...
科学技術振興機構

[Takahide Sakamoto] Ultrafast and continuous optical waveform measurement by optical discrete time-frequency domain transform

An optical discrete time-frequency domain transform technology is proposed for ultra-fast optical waveform measurements. By using the technology, single shot ultrafast optical phenomena in a long time ...
JSTOR Daily

The Methods of Cyclic Reduction, Fourier Analysis and the FACR Algorithm for the Discrete Solution of Poisson's Equation on a Rectangle

This is a preview. Log in through your library . Abstract The methods of cyclic reduction and Fourier analysis are reviewed together with the FACR algorithm which combines the two methods. It is shown ...