LightGBM-MATLAB

this is about BluetoothFrequencyHopping

zxb:提取wav波得语音声学特征MFCC，以及用praat提取wav波的基频。(zxb: extract acoustic features of voice wav wave was MFCC, and extracted with praat wav wave fundamental frequency.)

DIRECTION OF ARRIVAL ESTIMATION IMPROVED MUSIC FOR COHERENT SIGNAL

说明：  Power factor of wind turbine

Compiled database of musical notes for use in Matlab

假设检验例题 7.1 设总体 ，其中参数 ， 为未知，试指出下面统计假设中哪些是简单假设，哪些是复合假设： （1） ； （2） ； （3） ； （4） ； （5） . 解：（1）是简单假设，其余位复合假设 (Hypothesis testing for Example 7.1 overall, including parameters, is unknown, pointed out that the following statistical hypothesis test which is a simple assumption, which is a compound hypothesis: (1) (2) (3) (4) (5). Solution : (1) is a simple assumption, the remaining bit composite hypothesis)

第一：边界加强，通过估计噪声和实际信号的比值，来确定各个尺度的细节系数，以达到噪声抑制和边界加强。第二，通过对小波分解的近似部分进行直方图均衡，达到加大整幅图片的对比度，而不太影响细节的目的。(First: to strengthen the border, through the estimates and the actual signal noise ratio, to determine the details of each scale factor, so as to achieve noise suppression and boundary strengthening. Secondly, the wavelet decomposition of the approximate portion of histogram equalization to increase the contrast of the whole images, and do not affect the details of the purpose.)

A UMAT Coding for Kinematic Hardening Plasticity.

球面波仿真，三维彩色图像生成，体现球面波传播的特性(spherical wave movie)

关于系统辨识的程序，关于系统辨识的程序关于系统辨识的程序，关于系统辨识的程序(on system identification procedures on the system identification procedures on the system identification procedures, on the system identification procedures)