BPSK

基于matlab的信道仿真。包含了信道建模、qpsk调制解调、ofdm技术等等。(Channel simulation based on matlab. Contains the channel modeling, qpsk modem, ofdm technologies.)

1. 判断闰年 根据输入的具体年份（在1900-2100之间，要求对输入进行有效性检查），判断是否闰年，并给出相应的提示信息 (1. To determine leap year according to input a specific year (in 1900-2100 between the call for input validation), to determine whether a leap year, and gives the corresponding tips)

说明：  认知无线电频谱感知循环检测法MATLAB程序(CR Spectrum sensing Cycle Detection MATLAB code)

RGB, YCbCr, HSV, HSL, CIE Lab, CIE Luv, CIE Lch等颜色空间相互转化的matlab实现。 (RGB, YCbCr, HSV, HSL, CIE Lab, CIE Luv, Lch CIE color space such as conversion of the Implementation of Matlab.)

this code is calculating the fundamental spectral responsivities functions.

聚类方法在雷达信号分选中的应用，聚类方法在雷达信号分选中的应用(Clustering method selected in the application of radar signal, clustering method selected in the application of radar signal)

Denoising of Signals using customized thresholding

三次样条插值函数边界条件由实际问题对三次样条插值在端点的状态要求给出。以第 1 边界条件为例， 用节点处二阶导数表示三次样条插值函数，用追赶法求解相关方程组。通过 Matlab 编制三次样条函数的通用程序， 可直接显示各区间段三次样条函数体表达式，计算出已给点插值并显示各区间分段曲线图。(Cubic spline interpolation function boundary condition for the practical problems cubic spline interpolation required to give the state the endpoint. In the first boundary condition, for example, with a node represents the second derivative of the cubic spline interpolation function for solving the relevant equations with catching method. General Procedure prepared by the cubic spline function Matlab, can directly display each range segment cubic spline function body expression, to the point of interpolation is calculated and displayed for each interval segment curve.)

1采用遗传算法对男女生样本数据中的身高，体重，喜欢数学，喜欢文学，喜欢运动，喜欢模式识别共6个特征进行特征选择，并基于所得到的最佳特征采用SVM设计男女生分类器，并计算模型预测性能（包含SE,SP,ACC和AUC ）。提示：可以用6位的0/1进行编码，适应度函数可以考虑类似 。(1 genetic algorithm for boys and girls in the sample data of height, weight, like math, like literature, like sports, like pattern recognition feature a total of six feature selection, design and use of SVM classifier for boys and girls based on the best features of the resulting and calculating prediction performance model (including SE, SP, ACC and AUC). Tip: 6 may be encoded with the 0/1, the fitness function may be considered similar.)

各方调制方式，例如bpsk、qam、fak等，在高斯白噪信道下误码对比结果(MATLAB awgn)