shiyan1

说明：  非平稳信号的一些处理函数，包括计算瞬时频率和群延迟及非平稳信号的生成。(Some non-stationary signal processing functions, including the calculation of the instantaneous frequency and group delay and non-stationary signal generation.)

现在我终于找到了一份,它以FUNCTION的形式,再现了OFDM映射,IDFT/DFT,同步(时间/频率同步)和信道估计,以及频率偏移的估计等一系列代码.希望大家能从中得到你需要的东西. (Now I finally found a copy of it to the form of FUNCTION, reproduces OFDM mapping, IDFT/DFT, synchronized (time/frequency synchronization), and channel estimation, as well as the frequency deviation of the estimated range of the code. I hope that everyone will be you need.)

格型滤波器，抑制扩频通信中窄带干扰，此代码抑制一个单音干扰(Lattice filters, narrowband interference suppression in spread spectrum communications, the code to suppress a tone interference)

多尺度样本熵，研究信号用的，基础知识，非常重要(MSE, Multi-scale sample entropy, the basic knowledge of signal research, is very important)

Dennis M. Sullivan ；FDTD二维电磁场传播模拟，根据书上的C语言，写成的matlab程序(Dennis M. Sullivan FDTD simulation of two-dimensional electromagnetic field propagation, according to the book on the C language program written in matlab)

用遗传算法优化神经网络权值的工具箱，很好用。解决神经网络全局收敛问题，训练速度快(genetic algorithm optimization neural network toolbox value of the right to good use. Neural network address global convergence, speed training)

软限幅效应,量化阶数及取样间隔对直扩数字匹配滤性能的影响 郭南1996 本文以典型的AID变换量化器和改进型抖动噪声量化器为倒t研究几个数字化参数对 直接序列扩频(DS／SS)数字匹配滤渡／相关性能(系统的处理增益和误比特率)的影响，给出理论分 析及计算机模拟结果 用最优化方法研究最佳软限幅问题；指出增加量化比特数与引入抖动噪声 相比能更有救地改善系统性能，而且只要采用三比特的量化就能使系统性能接近无穷量他的效 果．文中还讨论了取洋间隔以及噪声的归一化带宽对系统性能的影响。本文的结果可为台理设计 直扩数字匹配撼披器，相关器提供必要的理论依据。(Soft limiter effect of quantization and sampling intervals on the order of DS digital matched filter performance Guo South 1996 In this paper, a typical quantization AID transform quantization noise and improved jitter inverted t examine several parameters on the digital direct sequence spread frequency (DS/SS) digital matched filter crossing/relative performance (system processing gain and bit error rate) of given theoretical analysis and computer simulation results using optimization method of optimal soft limiter problem pointed out that the increase in quantization bits Number and introduce jitter noise can be more saved than to improve system performance, and as long as the three-bit quantization of the system performance can be substantially infinite amount of his effect. The paper also discusses the fetch interval and ocean noise normalized bandwidth impact on system performance. The results of this paper designed for station management shake Phi DS digital matched device, prov)

to calculate mean varian for audio app

Antenna Input Impedance

实现Multiple Kernels for Image Classification的算法(Realization of Multiple Kernels for Image Classification Algorithm)