LeastSquare_Function

Interpolation refers to the process of converting a sampled digital signal (such as a sampled audio signal) to a higher sampling rate (Upsampling)

water marking of an image.you can use the code.please try to run the code

基于维特比译码算法的BPSK解调方式，survivor_state是一个矩阵，它显示了通过网格的最优路径，这个矩阵通过一个单独的函数metric(x,y)给出，这个算法既能用于硬判决译码也能用于软判决译码。 (BPSK demodulation method based on viterbi decoding algorithm, survivor_state is a matrix, the optimal path of it shows through the grid, the metric matrix through a separate function (x, y), the algorithm can not only used for decoding hard decision can also be used to the soft decision decoding. )

2 level spwm inverer

绘制OFDMA/ LFDMA/ IFDMA信号的PAPR DFT传播有/无脉冲整形滤波器 不同数量的每个终端的子载波（用户）(plot the PAPRs of OFDMA/LFDMA/IFDMA signals DFT spreading with/without pulse shaping filter and different number of subcarriers per terminal (user))

说明：  通过50道练习题，对matlab进行了一个总体的实例讲解，对于初学者尽快了解matlab的功能与应用有很大帮助(Through the 50 exercises, carried out on an overall matlab examples to explain, as soon as possible for beginners to understand the function and application of matlab are very helpful)

有源电力滤波器可以使用的模型，电流控制使用重复控制算法(active power filter using repetitive control)

说明：  模态频率和阻尼比计算可用机械行业，交通行业MODAL FREQUENCY AND DAMPING RATIO ( MODAL FREQUENCY AND DAMPING RATIO)

说明：  全自动无缝图像拼接技术 并附有样例供参考(Automatic seamless image mosaic technology together with samples for reference)

详细描述了cd4011的功能，并详细介绍了各个引脚，以及如何使用(Described in detail cd4011 features and details of each pin, and how to use)