pgj

i hope its useful for students

说明：  （拟合） 用给定的多项式，y=x3-6x2+5x-3，产生一组数据(xi,yi，i=1,2,…,n),再在yi上添加随机干扰(可用rand产生(0,1)均匀分布随机数,或用rands产生N(0,1)分布随机数)，然后用xi和添加了随机干扰的yi作的3次多项式拟合，与原系数比较。 如果作2或4次多项式拟合，结果如何？ ((Fitting) with a given polynomial, y = x3-6x2+5 x-3, generated a set of data (xi, yi, i = 1,2, ..., n), then add a random disturbance yi ( can be generated rand (0,1) uniformly distributed random number, or rands generated N (0,1) distribution of random numbers), and then added with xi and yi for random interference of the 3 times polynomial fitting, and the original coefficient. If 2 or 4 times for polynomial fitting, the result?)

说明：  基于卡尔曼滤波器的PID控制器参数优化程序,matlab编程,matlab环境运行 (Kalman filter based on the PID parameter optimization procedures, Matlab programming, Matlab environment running)

西北工业大学matlab学习课件，帮助需要学习matlab的同学循序渐进的掌握这门编程技术(Northwestern Polytechnical University, matlab learning courseware to help students to learn matlab step by step to master this programming)

antanna arrays power gain

对信号进行四级小波包分解重构的源程序。将要分解的数据文件存放在E: a.wav (4 of the signal reconstruction wavelet packet decomposition of the source. Decomposition will be stored in the data file E: ta.wav ' )

生成与函数值Y维数相同的时间矩阵,对初学者有一定的帮助！！(cc)

直驱风力发电的matlab仿真模型，仿真通过，可以使用(Direct-drive wind power matlab simulation model, through simulation, you can use)

QPSK BPSK qam的AWGN和瑞利信道的生成和仿真(QPSK BPSK qam of AWGN and Rayleigh Road, generation and simulation)

无线衰落信道下MIMO_OFDM系统的信道估计算法研究，较新的文章(wireless fading channel MIMO_OFDM the channel estimation algorithm research, the newer article)