Chp6ex13

耳蜗实质上相当于一个滤波器组，耳蜗的滤波作用是在对数频率尺度上进行的，在1000HZ下，人耳的感知能力与频率成线性关系；而在1000HZ以上，人耳的感知能力与频率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(Cochlear substantially equivalent to a filter set, cochlear filter is used on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula )

it s combination from okumurra hatta pathloss and walfish ikegami model it can count pathloss in urban,suburban, and rural area

将MATLAB源文件编译成可执行程序的步骤(MATLAB source files will be compiled into an executable program steps)

对比LDPC Hamming 循环卷积码三种编码方式的误码率(Contrast BER LDPC Hamming codes are three circular convolution encoding)

这是关于直接序列扩频通信系统的DS-CDMA方式的仿真设计，系统主要分为发送机和接收机两部分，包括17个可用于SIMULINK仿真的S-FUNCTION代码M文件，和一个MATLAB源程序的DOC文件，程序都有详细的注释。(This is a direct sequence spread spectrum communication system on the DS-CDMA mode simulation design, the system can be divided into two parts, transmitter and receiver, including 17 for the S-FUNCTION SIMULINK simulation of M code files, and a MATLAB source code The DOC file, the program has detailed notes. 朗读 显示对应的拉丁字符的拼音 字典- 查看字典详细内容名词0.directness0.immediacy形容词0.direct0.immediate0.first-hand0.plump副词0.straight0.right0.slap )

This package enables Gaussian process prediction with very large sample sizes with a much smaller computational burden than many existing methods.

matlab仿真计算电磁波回波信号。。。。。。。。。(computer backscattered field)

运用群操作进行多用户检测，matlab程序(The use of group operation multi-user detection, matlab program)

MATLAB.GUI教学视频3：滚动条数值显示在文本框中(MATLAB.GUI instructional videos 3: scroll bar value displayed in the text box)

本matlab代码主要设计卡尔曼滤波以及多用户检测相关问题(The matlab code design of Calman filter multiuser detection problem)