chap7

一个四用户的扩频通信系统，扩频增益为N=16，采用Walsh码进行直接序列扩频，BPSK调制，无线信道为AWGN信道。在接收端进行解扩，解调，判决，通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。(A four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct Sequence Spread Spectrum, BPSK modulation, AWGN channel for the wireless channel. At the receiving end for despreading, demodulation, judgments, through the simulation to be one of a user' s bit error rate and SNR of the simulation results.)

追赶法解数学方程，主要用于数值运算，希望对大家有帮助(Solving mathematical equations to catch up, mainly for numerical computation, we want to help)

说明：  一些关于backstepping算法的实例(some files about backstepping)

MATLAB环境下的数值分析教学软件开发(MATLAB environment teaching numerical analysis software development)

基于最小二乘法的可变分数延时FIR滤波器设计(Delay FIR filter design based on a variable fraction of the least squares method)

eeglab中使用ICA算法后的自动伪迹识别插件adjust，可以自动识别独立成分的伪迹成分，可用于去除眼电、心电等伪迹，解压后安装在eeglab/plugins文件夹中即可在eeglab-tools中调用(independent component analysis algorithm)

说明：  基于最小方差法低通FIR的设计说明书,单通带,有详细的步骤及相关理论知识(Minimum variance method low-pass FIR-based design specification, a single passband, with detailed steps and theoretical knowledge)

QPSK波形及其经过带宽为4hz的带通滤波器(QPSK waveform and its after 4HZ bandwidth of the bandpass filter)

qpsk调制在瑞利信道中的性能仿真，以及各个阶段信号的星座图仿真(qpsk modulation performance in Rayleigh channel simulation, as well as the various stages of signal constellation simulation)

说明：  自己根据K-MEANS思想在MATLAB下实现的彩色图像分割算法程序，用最普通的语句实现，通俗易懂。可以直接用于对彩色细胞图像的分割，分割结果比较准确，(K-MEANS in accordance with their own ideas in MATLAB to achieve color image segmentation algorithm based on the procedures used to achieve the most common statement, user-friendly. Can be directly used for color cell image segmentation, more accurate segmentation results,)