dpll

用Goertzel算法计算两正弦波信号的相位差(Goertzel algorithm using two-phase sine wave signals)

perceptron neural network with an example

说明：  离散型永磁同步电机滑模控制，采用锁相环实现角度估算，角度误差低，效果好。(PMSM_SMO_PLL,test is good.)

an ideal lowpass filter

is-95前向链路通信系统仿真一个数据无线电的多接入方案，其用来发送声音，数据和在无线电话和蜂窝站点间发信号数据（如被拨的电话号码）。 (is-95 prior to link a data radio communication system simulation of multi-access program, which used to send voice, data and wireless phones and cellular sites in the signal between the data (such as by dial telephone number).)

使用matlab来生产BA网络。输入每次的连边数量和节点个数来产生最后的BA网络(Generate BA network)

computation TEC for ARECIBO cc to drew L

一个单位负反馈系统的滞后超前频域法校正，可直接在matlab中打开和运行(A unit negative feedback system lag correction ahead frequency domain method can directly open and run in matlab)

Texture segmentatioon with em

Structured covariance estimation. The routine takes a covariance matrix as input and returns the Toeplitz matrix that lies closest to it, in the sense that it minimizes the Kullback-Leibler divergence between the two. Input must be a real, square, symmetric and positive semi-definite matrix.