Chapter5

详细介绍了MATLBA中的COV函数的使用和作用(Introduces the use of MATLBA COV function and role )

遗传算法的matlab实现的多个实例介绍及实现(The introduction and implementation of multiple instances of matlab implementation of the genetic algorithm)

清华大学信号与系统matlab应用课程讲义，谷源涛，共4讲(handouts for application of matlab in signal and system, tsinghua university)

车牌字符分割Matlab程序，可以实现车牌的字符分割(License plate character segmentation Matlab program, you can achieve the license plate character segmentation)

MATLAB数字图象处理哈哈镜程序，三角形、梯形、S形(MATLAB DistortionLi digital image processing procedures, triangle, trapezoid, S-shaped)

2. 设 是窄带信号，定义 是在 区间上均匀分布的随机相位。 是寬带信号，它是一个零均值、方差为1的白噪音信号e(n)激励一个线性滤波器而产生，其差分方程为 。 1） 计算 和 各自的自相关函数，并画出其函数图形。根据此选择合适的延时，以实现谱线增强。 2） 产生一个 序列。选择合适的 值。让 通过谱线增强器。画出输出信号 和误差信号e(n)的波形，并分别与 和 比较。 (Computer Experiments: 1. Consider an AR process x(n) defined by the difference equation where v(n) is an additive white noise of zero mean and variance .The AR parameters and are both real valued: a) Calculate the noise variance such that the AR process x(n) has unit variance .Hence , generate different realization of the process x (n). b) Given the input x (n), an LMS filter of length M = 2 is used to estimate the unknown AR parameters and . The step size is assigned the value 0.05. Compute and plot the ensemble average curve of and by averaging the value of parameters and over an ensemble of 100 different realization of the filter. Calculate the time constant according to the experiment results and compare with the corresponded theoretical value. c) For one realization of the LMS filter, compute the prediction error And the two tap-weight errors and Using power spectral plots of , show that)

EZW coding. WAVELET-TRANSFORM BASED COMPRESSION ALGORITHM

Calculating Fir filters in Matlab.

The firefly algorithm (FA) is a metaheuristic algorithm, inspired by the flashing behaviour of fireflies. The primary purpose for a firefly s flash is to act as a signal system to attract other fireflies. Xin-She Yang formulated this firefly algorithm by assuming:[1] All fireflies are unisexual, so that one firefly will be attracted to all other fireflies Attractiveness is proportional to their brightness, and for any two fireflies, the less bright one will be attracted by (and thus move to) the brighter one however, the brightness can decrease as their distance increases If there are no fireflies brighter than a given firefly, it will move randomly. The brightness should be associated with the objective function. Firefly algorithm is a nature-inspired metaheuristic optimization algorithm.

说明：  用于生成带噪声的无人机飞行轨迹，同时通过中值和小波滤波方式进行噪声去除(It is used to generate the flight path of UAV with noise and remove the noise by means of median and wavelet filtering)