wptc meaning in English

番茄加工联合会
世界加工番茄联合会

Wavelet transform is a wonderful method , which have adjustable resolution in time and frequency fields leading to more subtly analysis for a signal segment . it works in a good pattern according with the rule of human ears distinguishing frequencies from voice . for stft having inevitable disadvantages in analysis of unstable signal such as speech signal , as a result of study on wavelet theory and speaker recognition techniques , two feature parameters , iwptc ( incomplete wavelet packet transform coefficients ) and wptc ( wavelet packet transform coefficients ) , are got based on wavelet transform
针对短时傅立叶分析在提取说话人特征参数时的缺陷，本文通过对小波理论和说话人识别技术的研究，借鉴了一种传统的基于听觉机理的特征参数mfcc ( mel频域倒谱系数) ，利用小波变换、小波多分辨分析和小波包变换，构造出了两种基于小波变换的说话人识别特征参数： iwptc (不完全小波包变换系数)和wptc (小波包变换系数) 。