statistical_fuctions

用拉格朗日乘子法求解约束最优化问题，很好的实例程序。(Lagrange multiplier method for solving constrained optimization problems, very good example programs.)

另一个ＬＥＡＣＨ算法的ＭＡＴＬＡＢ仿真源代码程序(Another LEACH algorithm MATLAB simulation program source code)

利用Capon, MUSIC进行窄带信号空域信号方向估计。比较分辨率性能。观察阵元数、信噪比、快拍数对估计器性能的影响。 (Using Capon, MUSIC for narrowband signal airspace signal direction estimates. Comparative resolution performance. Observe the number of array elements, signal to noise ratio, the number of snapshots on the estimator performance.)

Harris corner extraction matlab code，摄像头标定时采用的角点检测方法，用于提取角点像素坐标。(Harris corner extraction matlab code, camera calibration using corner detection method for extracting corner pixel coordinates.)

利用正弦信号作为发射信号，分别在AWGN和瑞利信道中，计算CR中的检测概率和虚警概率，并绘图。(Sinusoidal signal as transmitted signal, respectively, in AWGN and Rayleigh channel, calculate the probability of detection and false alarm probability of CR and drawing.)

说明：  对故障数据的小波包分解与信号重构、小波包能量特征提取 暨 小波包分解后实现按频率大小分布重新排列，并进行降噪处理。(After wavelet packet decomposition and signal reconstruction, wavelet packet energy feature extraction and wavelet packet decomposition, the fault data can be rearranged according to the frequency distribution, and the noise can be reduced.)

This can be use full for starting the simulation of multi quantum well simulation under forward bias.

说明：  matlab基础知识学习资料，适合初学者学习，希望对有兴趣爱好者提供帮助。(matlab basic knowledge of learning materials, suitable for beginners to learn, I hope fans are interested to help.)

根据输入的调制方式，对输入序列MOD_IN进行调制，分别采用BPSK, QPSK, !6QAM, 64QAM，完成对星座图的映射(According to the modulation input, the input sequence MOD_IN modulation, using BPSK. QPSK,! 6QAM, 64QAM, the completion of the mapping constellation)

对EKF、UKF、PF算法进行比较分析，适用于初学者对三种算法的掌握(A comparative analysis of the EKF, UKF, the PF algorithm, for beginners grasp of the three algorithms)