fenxinggongjuxiang1

这个代码是matlab仿真的在没有协作用户的情况下，进行的误码率性能仿真。(Matlab simulation of this code is the collaboration of users in the absence of circumstances, to carry out simulation of BER performance.)

multiple modulation schemes.enjoy

现有一个信号：x(n)=1+cos(π*n/4)+ cos(2*π*n/3)设计及各种数字滤波器以达下列目的： 低通滤波器，滤除cos(2*π*n/3) 的成分，即想保留的成分为1+cos(π*n/4) 高通滤波器，滤除1+cos(π*n/4) 的成分，即想保留的成分为cos(2*π*n/3) 带通滤波器，滤除1+cos(2*π*n/3) 的成分，即想保留的成分为cos(π*n/4) 带阻滤波器，滤除cos(π*n/4) 的成分，即想保留的成分为1+cos(2*π*n/3) 1. 用MATLAB命令butterord求除滤波器的阶数,用命令butter设计各滤波器；画出滤波器幅度和相频相应 取各滤波器的系统函数H(z)。 (an existing signal : x (n) = a cos (* n/4) cos (2** n/3) design and digital filter to achieve the following objectives : low-pass filter, filter cos (2** n/3) the ingredients that want to retain an element of a cos (* n/4) high-pass filter, a filter cos (* n/4) components, namely to retain the element of cos (2** n/3) band-pass filter , a filter cos (2** n/3) components, namely to retain the element of cos (* n/4) band stop filter, the filter cos (* n/4) components, namely to retain the ingredients for a cos ( 2** n/3) 1. MATLAB order butterord except for the band Filter, using the order of the filter design butter; paint Filter magnitude and phase frequency of the corresponding filter system function H (z).)

TESTING CODE FOR FILTER

画单极子天线阵列方向图，用来画单极子天线的方向图(Painted monopole antenna array pattern)

在缝后添加偏振片，输入两个偏振片透光轴与光波振动方向之间的角度，观察干涉现象。(Polarizer is added after the slit to observe the interference phenomenon)

matlab中的数据插值描述，和大家一起分享参考(Matlab interpolation of data description, and others together to share information)

Acoustic Analysis for Detection of Voice Disorders Using Adaptive Features and Classifiers

数据库的完整性控制熟悉利用企业管理器为列创建DEFAULT约束、为列创建CHECK约束、为列创建UNIQUE约束、为列创建不允许为空约束、创建PRIMARY KEY约束、创建FOREIGN KEY约束(Integrity control of the database use Enterprise Manager to create the familiar column DEFAULT constraint, create a CHECK constraint for a column, create a UNIQUE constraint for a column, create a column does not allow null constraint, create a PRIMARY KEY constraint, create FOREIGN KEY constraint)

自己编的，利用MATLAB进行DPSK和PSK编码，可用于数字通信的课程学习中。(Own, and the use of MATLAB for DPSK and PSK encoding, digital communication can be used to study in the curriculum.)