liti5

电路 信号系统仿真的源码 基于multisim10.0(Signal System Simulation multisim10.0 based on the source)

Local feature extraction in fingerprints by complex filtering

十种软件滤波.rar介绍了十种软件滤波的方法,不过我建议还是使用模拟滤波方法好.(10 kinds of filtering software. Rar introduction of dozens of software filtering method, but I suggest that the use of analog filtering methods or good.)

说明：  这是一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT， 上下变频，高斯信道建模，FFT，PAPR抑制，各种同步，解调和解码等模 块，并统括系统性能的仿真验证了系统设计的可靠性。 (This is a relatively complete simulation of OFDM communication system design, including coding, modulation, IFFT, the upper and lower frequency, Gaussian channel model, FFT, PAPR suppression, various synchronization, demodulation and decoding of modular and system performance omnibus simulation of the system reliability.)

说明：  PQ分解法在计算潮流速度上大大超过N－R法，不但能应用于离线潮流计算，而且也能应用于在线潮流计算。(PQ decomposition method in the calculation of the trend of speed much higher than the N-R method, not only applies to off-line power flow calculation, but also can be used in-line power flow calculation.)

说明：  matlab入门的基础知识,很好用的,看完后你就懂了(Introduction to the basics of matlab, very good use, you will get it after reading)

把辨识分成两步进行：第一步：利用相关分析法获得对象的非参数模型（脉冲响应或相关函数）；第二步：利用最小二乘法、辅助变量法或增广最小二乘法等，进一步求的对象的参数模型。如果模型噪声与输入无关，则Cor-ls相关最小二乘法（二步法）可以得到较好的辨识结果。Cor-ls相关最小二乘法（二步法）实质上是先对数据进行一次相关分析，滤除了有色噪声的影响，再利用最小二乘法必然就会改善辨识结果。能适应较宽广的噪声范围，计算量不大，初始值对辨识结果影响较小。但要求输入信号与噪声不相关(The identification is divided into two steps: the first step: using the correlation analysis method for object nonparametric model (impulse response or related function) The second step: using the least squares method, auxiliary variable method or augmented least squares method and so on, further for the parameters of the object model. If the model input noise and independent, the Cor- ls related least squares (two footwork) can get good recognition results. Cor- ls related least squares (two footwork) is essentially the data to a correlation analysis, filter in addition to the influence of colored noise, using least squares inevitable will improve the identification result. To adapt to a wide range of noise and calculation is not big, the initial value to identification results less effect. But for the input signal and noise are not related)

local mean decomposition 软件原理描述(local mean decomposition Software Principles)

工程计算可视化与MATLAB实现:本书列举了大量的算例，并附有数值解和图形解，使学生通过上机学到数学和相关领域的知识。(Engineering Computing and Visualization in MATLAB: This book lists a number of examples, along with numerical and graphical solution, so that students learn mathematics through the machine and the related fields of knowledge.)

基于MATLAB的永磁同步电动机矢量控制系统，其速度环采用滑模变结构控制方法，其仿真效果非常完美，还有相关的学习资料。(Based on MATLAB PMSM vector control system, and the speed loop adopts variable structure control method, the simulation effect is very perfect, and related learning materials.)