face_detect

coverage and interfernce in wireless channel

Methods to model communication channel

用于无限冲激响应的数字滤波器设计，此处所用的是双线性冲激响应法以及脉冲响应法设计的一段Matlab程序。(For an infinite impulse response digital filter design, where the impulse response using a bilinear method and the impulse response method designed a Matlab program.)

说明：  关于心电信号的各种滤波方法，IIR，FIR，空域相关，软硬阈值，基于IIR的自适应滤波等(the method for ECG denoising,such as IIR,FIR,spatial correlation,soft and hard threshold,based on IIR filter s adaptive filter)

matlab中分别用牛顿法，二分法及迭代法求解方程的程序，及其比较(matlab scripts for solving eq. by the means of newton ,bisection and iteration)

matlab 读取文件中数据并绘制图形的程序(matlab draw the data from the other files)

Gardner位同步算法，适用于MPSK信号，能够快速地获取位同步信息，对于研究者来说具有参考价值。(Gardner bit synchronization algorithm, suitable for MPSK signal, can quickly obtain bit synchronization information, the researchers have reference value)

calculation satellite GDOP

说明：  matlab generation.mdl

电力线通信多径信道模型-Manfred Zimmermann模型，多径效应的传递函数H(f)可以用N条传输路径的叠加以及含有频率f、延时τ、距离d的方程来表示： H(f)=∑g_i *A(f,d_i )*e^(-j2πfτ_i ) 式中，i 为路径号， g_i为路径 i的加权系数(包含了传输系数和反射系数的作用)，A(f,d_i )为衰耗，其大小由长度、频率决定，τ_i是每条路径上的延时。 (Powerline Communication multipath channel model-Manfred Zimmermann model)