Improved Instantaneous Frequency Estimation Using an Adaptive Short-Time Fourier Transform
Improved Instantaneous Frequency Estimation Using an Adaptive Short-Time Fourier Transform...
Improved Instantaneous Frequency Estimation Using an Adaptive Short-Time Fourier Transform...
DFT(Discrete Fourier Transformation)是數(shù)字信號(hào)分析與處理如圖形、語(yǔ)音及圖像等領(lǐng)域的重要變換工具,直接計(jì)算DFT的計(jì)算量與變換區(qū)間長(zhǎng)度N的平方成正比。當(dāng)N較大時(shí),因計(jì)算量太大,直接用DFT算法進(jìn)行譜分析和信號(hào)的實(shí)時(shí)處理是不切實(shí)際的。快速傅立葉變換(Fast Four...
oJPEG2000中DWT的MATLAB實(shí)現(xiàn)n the use of discrete cosine transform DCT jpeg compression Matlab source, simple and practical, the Notes have a good time...
快速傅里葉變換(FFT)算法。FFT - Fast Fourier transform. The length of X must be a power of two, for a fast radix-2 fast-Fourier transform algorithm is used...
Analysis of blind data hiding using discrete cosine transform phase modulation。...