One-dimensional-cloud-model

Ber using beamforming sourcecode matlab

This is another source code for speech recognition.. this is the voice active detection using energy detection

说明：  人口迁移算法,此程序实现人口迁移算法，用于求解无约束连续函数最小化问题,仅供学习参考。(Migration algorithm, this process of population migration algorithm for solving unconstrained continuous function minimization problem, study reference purposes only.)

解耦，恢复原信号，能量谱分析计算,一个很有用的程序。( Decoupling, restore the original signal, Energy spectrum analysis and calculation, A very useful program.)

文章展示了基于高斯混合模型的语音频谱预测方法。频谱预测可能在传包过程中预防丢包这方面起到大作用。期望最大化算法用两倍或三倍的连续语音因素来测试模型。模型被用来设计第一，儿等指令预测量。预测表用频谱分配状态来估计并和一个简单的参考模型对比。最好的预测表得到一个平均频率扭曲值是0.46dB小于参考模型(This paper presents methods for speech spectrum prediction based on Gaussian mixture models. Spectrum prediction may be useful in a packet transmission system where the sensitivity to packet losses is a major problem. Models of speech are trained by the Expectation Maximization algorithm using pairs, triples etc. of consecutive cepstral vectors. The models are used to design first, second etc. order predictors. The prediction schemes are evaluated using the spectral distortion criterion and compared to a simple reference method. The best prediction scheme obtains an average spectral distortion that is 0.46 dB less than for the reference method. )

说明：  matlab命令大全，便于编程时随时查阅编程命令(Guinness matlab command for easy programming access )

计算AR模型的参数，包括滤波、去趋势化、AIC判断阶数、计算AR模型系数。(Calculation AR model parameters, including filtering, detrended, AIC judgment order to calculate the AR model coefficients.)

牛顿法的MATLAB，随便写的水平有限请谅解(Newton' s law of MATLAB, low level of random write requests with the understanding)

关于开环系统的分析 包括奈奎斯特图和伯德图，以及对系统进行校正前后的分析(With regard to the analysis of open-loop system, including the Nyquist diagram and Bode plot, as well as an analysis of the system before and after correction)

matlab code for sweep generation