Spectral width

scale），且窗口長度（window length）會隨著頻率而改變。 常数Q转换由一系列以对数尺度分布在频域的滤波器fk,构成，其中第k个滤波器的频带宽度（英语：Spectral_width）δfk与前一个滤波器的带宽相关： δ f k = 2 1 / n ⋅ δ f k − 1 = ( 2 1 / n ) k ⋅ δ f min

{\displaystyle n} 表示介质的折射率， Δ λ {\displaystyle \Delta \lambda } 表示波源的谱宽（英语：spectral width）。若波源光谱的半峰全宽为 Δ λ {\displaystyle \Delta \lambda } ，则 ± L {\displaystyle

size( hdr ); [height, width, channel] = size(hdr) %計算L_w_bar(x,y) sum_all = sum(sum(log(0.00000001+ lum_w))); N = height * width; lum_white = 1e20; lum_w_bar

parameters and nitrogen abundances to investigate the role of binarity and the width of the main sequence⋆. Astronomy & Astrophysics. March 2015, 575: A70. Bibcode:2015A&A

State University. 2007 [2007-01-07]. （原始内容存档于2007-12-04）. —describes the width of a human hair as 105 nm and 10 carbon atoms as spanning 1 nm. Padilla