lab1

说明：  LDPC码归一化解码算法，加深对BP译码算法的理解(LDPC code decoding algorithm normalized to deepen the understanding of the BP decoding algorithm)

L滤波型逆变器仿真模型,调适通过，效果一般，适用于matlab12及以上版本(L filter-based inverter simulation model)

Ebook - Schaum - Theory and Problems of Software Engineering

基于matlab用脉冲响应不变法和双线性变换法实现iir数字滤波器的设计(A design of two ways to realise iir digital filter)

压电智能悬臂梁振动主动控制的研究 压电智能悬臂梁振动主动控制的研究 (Piezoelectric active vibration control of smart cantilever beam study of piezoelectric active vibration control of smart cantilever beam research)

Gabor-function convolution masks are increasingly used in image processing and computer vision. This function simply computes the cosine and sine masks for a given width, period and orientation. The masks returned are properly normalised. It is not highly optimised - e.g. the symmetries are not used to reduce the computation. It is recommended that convolutions with these masks are done using CONVOLVE2 (available from Matlab File Exchange) to take advantage of their low rank. (Gabor-function convolution masks are increasingly used in image processing and computer vision. This function simply computes the cosine and sine masks for a given width, period and orientation. The masks returned are properly normalised. It is not highly optimised- e.g. the symmetries are not used to reduce the computation. It is recommended that convolutions with these masks are done using CONVOLVE2 (available from Matlab File Exchange) to take advantage of their low rank. )

Steganography LSB by 2 bits method Find and hide information in a image

幂法是一种计算矩阵主特征值(矩阵按模最大的特征值)及对应特征向量的迭代方法, 特别是用于大型稀疏矩阵。 (The power method is a method of calculating the matrix eigenvalue (matrix largest characteristic value) and the iterative method of the corresponding feature vector, particularly for large sparse matrix.)

说明：  matlab动力学分析程序详解:一个用matlab进行动力学分析的程序例子(Detailed explanation of MATLAB dynamic analysis program)

巴特沃思滤波器，低通，可自由修改参数进行低通滤波(Butterworth filter, low pass, be free to modify the parameters of low-pass filter)