Title :
Window functions represented by B-spline functions
Author :
Toraichi, Kazuo ; Kamada, Masaru ; Itahashi, Shuichi ; Mori, Ryoichi
Author_Institution :
Inst. of Inf. Sci. & Electron., Tsukuba Univ., Ibaraki, Japan
Abstract :
Characteristics of window functions provided by B-spline functions are analyzed in comparison to other known windows. For the same highest-sidelobe level, those windows have a mainlobe bandwidth between those of Gaussian and cos/sup a/ x windows are as good as those of cos/sup a/ x ones in the sidelobe falloff.<>
Keywords :
digital filters; spectral analysis; splines (mathematics); B-spline functions; FIR digital filters; Gaussian windows; highest-sidelobe level; mainlobe bandwidth; polynomials; sidelobe falloff; spectral analysis; window functions; Acoustical engineering; Bandwidth; Convolution; Digital filters; Finite impulse response filter; Fourier transforms; Magnetooptic recording; Polynomials; Spectral analysis; Spline;
Journal_Title :
Acoustics, Speech and Signal Processing, IEEE Transactions on
