PID_june

DVD租赁的matlab源程序，使用贪婪算法(DVD rental matlab source code, the use of greedy algorithm)

水力裂缝 压裂，裂缝尖端应力分布，主要用于石油工程开发方面。直接运行即可。(matlab codes for reservoir engineering for hydraulic fracturing stress analysis.)

matlab program for adapting filter

说明：  本程序用来求转子的临界转速，模型为有限元模型(This procedure is used to seek the rotor critical speed, the model for the finite element model)

对图像进行arnold变换以实现图像之乱(great)

说明：  算法用于锂离子电池，用卡尔曼滤波算法进行状态估计并进行预测(state estimation and estimation)

说明：  利用BP神经网络设计指纹识别算法，给神经网络提供每一模式类中的一些样本作为训练样本。BP网络经过学习，不仅能够识别已训练过的样本，而且能够识别未出现过的样本。利用神经网络的泛化能力，提高指纹识别算法的识别率，图像增强、提取指纹特征(BP neural network is the first mock exam to design fingerprint recognition algorithm, and it provides samples for each neural network as training samples. After learning, BP network can not only recognize the trained samples, but also recognize the samples that have not appeared. The generalization ability of neural network is used to improve the recognition rate of fingerprint recognition algorithm, image enhancement and fingerprint feature extraction)

C++ IIR filter module hided behind interfaces, coefitients format compatible with matlab SOI matices

2Algorithms for matrix extension and orthogonal wavelet filter banks over algebraic number fields 15.MCOM110409

说明：  通信信号的调制信息包含在信号的瞬时幅度、相位、频率的变化之中，不同的信号其频谱也呈现不同的特征，通过提取瞬时幅度、相位、频率以及频谱的参数统计特征，可以识别不同的通信信号。通常是利用对瞬时幅度、瞬时相位，瞬时频率和信号功率谱进行某种变换而得到可以明显区分各种信号的特征参数。(Communication signal modulation information is contained in the signal instantaneous amplitude, phase, frequency changes, the spectrum of different signals also show different characteristics, by extracting the instantaneous amplitude, phase, frequency and statistical characteristics of the parameters of the spectrum, you can identify different communication signals. Usually by the use of instantaneous amplitude, instantaneous phase, instantaneous frequency and signal power spectrum a transformation which can be clearly distinguished by the characteristic parameters of various signals.)