zhang

估计功率谱密度的平滑周期图是一种计算简单的经典方法，其主要特点是与任何模型参数无关，是一种非参数化的方法。(Estimated power spectral density is a smooth periodogram simple classical calculation method, the main feature is not related to any model parameter, is a non-parametric methods.)

说明：  用于模拟光纤中的非线性薛定谔方程，包含了色散、非线性等现象的模拟，对与想了解脉冲在光纤中的传输变化非常有帮助(Used to simulate the optical fiber in the nonlinear Schr&ouml dinger equation, including the dispersion, nonlinear phenomena such as analog, pulse on and want to understand changes in the transmission fiber is very helpful)

说明：  6. 在三条径的瑞利信道中，对于OFDM： (1) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真，测量BPSK调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线。 (2) 设频率已同步，请设计OFDM一种具体的采用循环前缀进行时间同步方法，用Simulink进行仿真，画出比特信噪比与捕获概率的关系曲线。 (3) 设时间已同步，请设计OFDM一种具体的采用循环前缀进行频率同步方法，用Simulink进行仿真，画出比特信噪比与频率同步误差的关系曲线。 (。 6 In the three path Rayleigh channel for OFDM: (1) Please design a specific guide-assisted channel estimation method, the Simulink simulation, BPSK modulation measuring the bit error rate performance. Draw-bit signal to noise ratio and channel estimation mean square error curve, draw-bit signal to noise ratio and bit error rate curve. (2) set the frequency has been synchronized, the design of a specific OFDM cyclic prefix used for time synchronization method, the Simulink simulation, draw-bit signal to noise ratio and capture probability curve. (3) set time has been synchronized, the design of a specific OFDM cyclic prefix used for frequency synchronization method, the Simulink simulation, draw-bit signal to noise ratio and frequency synchronization error curves.)

简单利用matlab解决现代控制理论问题，让你明白易懂(The simple use of matlab to solve the issue of modern control theory, intelligible)

关于MIMO技术在移动端的应用,里面有raptor码和系统喷泉码的介绍。(MIMO Techniques for Mobile Communications )

make a simple triangle with matlab

MATLAB潮流计算(MATLAB flow calculation)

Principal component analysis (PCA) is a mathematical procedure that uses an orthogonal transformation to convert a set of observations of possibly correlated variables into a set of values of linearly uncorrelated variables called principal components. The number of principal components is less than or equal to the numbe

Discontinuous Galerkin finite element code for Hyperbolic (Euler) equation solver in C

粗糙集课件。里面有覆盖粗糙集模型和 Ziarko变精度粗糙集模型以及粗糙集程序(courseware. There are covering rough set model and Ziarko model)