tensor_toolbox

Data mining, machine learning

在MATLAB环境下，使用FFT实现的理想低通滤波器。(FFT implementation of the ideal low-pass filter。)

说明：  3GPP LTE中TS36942路径损耗模型的源程序代码(TS36942 3GPP LTE path loss model in the source code)

这是利用matlab7.0软件对通信信号进行调制simulink仿真，它包括am,pm,fm,ask,psk,fsk,qpsk等调制方式，有利于学生自学和老师教学！(This is the use of software for communications matlab7.0 modulation signal simulink simulation, which include am, pm, fm, ask, psk, fsk, qpsk such as modulation and is conducive to student learning and teachers teaching!)

The shuffled complex evolution with principal components analysis–University of California at Irvine (SP-UCI) method is a global optimization algorithm designed for high-dimensional and complex problems. It is based on the Shuffled Complex Evolution (SCE-UA) Method (by Dr. Qingyun Duan et al.), but solves a serious problem in searching over high-dimensional spaces," population degeneration". The population degeneration problem refers to the phenomenon that, when searching over the highdimensional parameter spaces, the population of the searching particles is very likely to collapse into a subspace of the parameter space, therefore losing the capability of exploring the entire parameter space. In addition, the SP-UCI method also combines the strength of shuffled complex, the Nelder-Mead simplex, and mutinormal resampling to achieve efficient and effective high-dimensional optimization.

利用这个方法计算混沌时间序列的时间延迟和嵌入维数(Time delay and embedding dimension of chaotic time series calculated using this method)

1/4半自动悬架，matlab/simulink仿真(1/4 semi-automatic suspension, matlab/simulink simulation)

提出了一种改进的积分梳状(CIC) 滤波器. 在改变传统积分梳状滤波器的延迟因子的 同时,将锐化(Sharpen) 技术和相位分解技术应用于此滤波器. 改进后的滤波器与传统滤波器 相比,减少了信号失真,降低了系统功率消耗. 仿真结果表明,改进后的滤波器在通带范围内的 波动很少,而且,具有较高的阻带衰减.(An improved Integrator Comb (CIC) filter. In changing the traditional integral comb filter delay factor, we will Sharpen (Sharpen) technology and phase decomposition technique used in this filter. Improved filtering Compared with the traditional filter device to reduce the signal distortion and reduces system power consumption. The simulation results show that the improved pass-band filter in the framework of the volatility of small and with high stopband attenuation.)

susan算法，基于MATLAB的椭圆拟合(susan algorithm, MATLAB-based fitting of the elliptical)

随机信号功率谱分析 (1) 生成信号，被淹没在在噪声中； (2) 试用周期图法估计信号的功率谱； (3) 选用不同窗，使用修正周期图法估计信号的功率谱； (4) 对一段语音信号，使用LD算法估计其功率谱； (5) 详细列出功率谱估计的步骤和原理。 (power spectral analys)