Video signal representation includes three aspects : the visual representation , transmission and digitalization 視頻信號的表現(xiàn)包括三個方面:視覺表現(xiàn)、傳輸與數(shù)字化。
Part i deals with background material in the acoustic theory of speech production , acoustic - phonetics , and signal representation 第一部分講述有關語音生成的聲學理論的背景知識,聲學-語音學,及信號表達。
As compared with the solution using pulse envelope representation , the propagation equation using complex analytic signal representation reveals different spatiotemporal behaviors such as spectrum redshifting , narrowing , and pulse broadening , etc . 2 復解析信號解會出現(xiàn)光譜紅移、變窄、脈沖變寬等與脈沖包絡解不同的時空特性。
The four - parameter basis functions decomposition of time - frequency signal representation is presented based on the characteristics of doppler frequency of the radar echoes , thereby dopplerlet transform is introduced 根據(jù)接收到的雷達目標回波信號的多普勒頻率特性,提出用4參數(shù)基函數(shù)的時頻信號表示法,從而引出多普勒小波變換的概念。
It is well known that discrete wavelet transform yields a shift variant signal representation , which means that a simple integer shift of the input signal will usually result in a nontrivial modification of the decomposed coefficients 近年來,基于小波變換的多傳感器融合得到了廣泛的關注與研究。但小波變換由于其變換過程中存在2取1的抽樣過程,使得小波變換不具備移不變特性。