正交镜像滤波器 meaning in Chinese
qmf ( quadrature mirror filter )
qmf quadrature mirror filter
Examples
- Design of all phase dft digital filter using matlab
可以直接进行谱分解用于设计二通道完全重建正交镜像滤波器 - So , we can finish the collection and resume of signal by using the data acquisition system by using multi - channel structure based on wavelet and multiresolution . 3
3 .研究了最小频宽的正交镜像滤波器和具有线性相位的正交镜像滤波器的设计方法，给出了设计结果。 - Quadrature mirror filter banks is a project which belongs to multi - sample rate digital signal process . it has important research value for wavelet , speech code , image compress and so on
正交镜像滤波器组是多抽率数字信号处理领域研究的问题。对小波分析，语音编码，图像压缩等具有重要的研究价值。 - In the next , we discuss the system of the meg - 1 layer i . the paper centers on the two kernel sub - parts : filtering coding and psychoacoustic model , do some research work in sub - band coding ( cbc ) theory and the relate theory such as quadrature mirror filter ( qmf ) and analyse sub - band filter ; also do research work in psychoacoustic theory especially the part related to the mpeg - 1 layer i . in the third chapter , introduce the ti tms320c6000 series dsps and their characteristics , also about the software development flow and the ti dsp / bios operating system of it . the forth chapter is the most important , firstly , according the algorithm flow in protocol , using c language validate the algorithm ; then , transplant and optimize the coding in dsp . in the processing of optimize , acording the assembler program characteristic of ti dsp , the paper put forward the analyse sub - band filter dsp optimization algorithm base on the eight spot idct . the algorithm has been optimize have greatly improved the work efficiency . make use of the technology of the dsp / bios host channels , data io pipe , software interrupt , we implement the musicam algorithm base on dsp / bios
论文首先对当前语音编码技术的发展、分类以及mpeg系列音频标准作了介绍；接着在第二章，给出了layer的musicam ( masking - patternuniversalsubbandintegratedcodingandmultiplexing )算法的系统组成，围绕分析子带滤波器和心理声学模型两个核心模块，深入研究了子带编码工作原理、比特分配及子带编码中用到的正交镜像滤波器和分析子带滤波器；探讨了心理声学基本原理和mpeg . 1layer所用到的心理声学模型。第三章对titms320c6000系列dsp作了简介，介绍了6000系列dsp结构特点、 c6000dsp软件开发流程和tidsp / bios操作系统。第四章是本文的重点，首先根据协议给出的算法用标准c语言编程实现并调试通过。