eight

It is a three dimensional interpolation with tricubic convolution interpolation,which is the method used in Matlab.But, it is more useful and faster the the code implement by Matlab.

产生高斯脉冲的前15阶导函数。该函数的输入参数为：矢量t定义时间轴；高斯脉冲导函数的阶数k，取值范围[1，15](have a Gaussian pulse of 15 derivative function. The function of the input parameters : vector defined time frame t; Gaussian pulse derivative function of order k, value in the range [1,15])

用于仿真高斯噪声、单音干扰、多音干扰以及不同占空比下干扰条件下的扩频系统性能及误码率(For the simulation of Gaussian noise, single tone interference, spread spectrum system performance in multi-tone interference and interference under the conditions of different duty cycles and bit error rate)

i send the matlab codes for embedded zero tree and se partioning in hierarchial trees in image compression.I also send matlab code for speech compression using rabiner algorithm amd OFDM transceiver design.

单径瑞利信道的simulink仿真 给定多普勒频移为120km/h，多普勒谱为经典谱。(the model of Rayleigh channel)

直线阵宽带信号方位估计,利用MVDR进行波束形成，（单目标情况）(Linear array wideband signal DOA estimation using MVDR beamforming, (single-target case))

说明：  用于提取信号的时频域特征参数，比如信号均值、方差、以及一些无量纲的时域特征参数(Time-frequency domain characteristic parameters used to extract signals, such as signal mean, variance, and some dimensionless time domain characteristic parameters)

现代数字信号处理部分实验代码。确定性最小二乘滤波器的实现、谐波信号的现代谱估计算法实现、卷积同态系统仿真实验(Modern digital signal processing part of the experiment code. Deterministic least squares filter is implemented, the modern spectrum of harmonic signal estimation algorithm implementation, convolution with the state system simulation experiments)

基于PCA 和BP 神经网络的人脸识别方法是针对 PCA 方法中存在的高维数问题和它对未训 练过的样本识别率低的缺点而提出的。该方法在预处理的基础上，利用粗糙集对 PCA 降维处理后的人脸特征进行约简，提取其中分类能力强的特征，实现在识别精度不变的情况下，有效的去除冗余信息；然后将约简后的属性输入到神经网络进行规则提取，利用神经网络非线性映射和并行处理的特点，增强对人脸图像识别的泛化能力。实验证明，使用该方法在识别率上有一定的提高(Face recognition method based on PCA and BP Neural Network)

Competitive and Cooperative Foraging Games: Static One-Stage Case