IEEE80211_OFDM

说明：  用DFT计算连续信号的谱 通过应用 DFT 进一步加深对离散信号 DTFT 和 DFT 的概念及其相互关 系的理解。 =利用 DFT 计算连续周期信号的频谱(DFT calculations using a continuous signal by applying the DFT spectrum of discrete signals to further deepen the concept of DTFT and DFT and their mutual understanding of the relationship. = DFT calculations using a continuous spectrum of periodic signals)

this file contains 4 parts: 1- sherlock C code for plagiarism detection in text document 2-linear kalman filter in simulink 3-sfclfunc m file for Superconducting fault current limiter 4-lightning protection is GUI matlab file for lightning protection

implementation of the moving average filter

this file is simulink of DC motor and PID controller

离散Meyer小波包变换，主要是Meyer函数构造的相关程序(Meyer discrete wavelet packet transform, mainly related to the program Meyer Constructor)

dct precoded SLM method for PAPR reduction High Peak to Average Power Ratio (PAPR) is still a most important challenge in Orthogonal Frequency Division Multiplexing (OFDM) system. In this paper, we propose a Discrete Cosine Transform (DCT) precoding based SLM technique for PAPR reduction in OFDM systems. This technique is based on precoding the constellation symbols with DCT precoder after the multiplication of phase rotation factor and before the Inverse Fast Fourier Transform (IFFT) in SLM-OFDM System.

说明：  Erlang B code, calculates system capacity against specific communication channels and user intensity.

ex9_14 雷达的恒虚警处理（CFAR）。在雷达的数据中有很多的杂波，会造成虚警。所以我们必须进行处理，这里我们采用了慢门处理和快门处理，并且对处理后的结果进行比较(ex9_14 radar CFAR processing (CFAR). The radar data have a lot of clutter, this will result in false alarms. Therefore, we must deal with, here we have adopted a slow shutter door handle and deal with, and after the results were compared)

说明：  用MATLAB设计及FPGA实现IIR滤波器的方法 摘要 本文介绍了IIR数字滤波器的传统设计思想与步骤及计算机辅助设计方法。并在FPGA上高效实现的低阶IIR滤波 器，其阶数低，实时响应快，适合雷达等的实时、高效处理环境。利用IIR滤波器的多相结构来实现该滤波器系统的方法，对于 四通道的情形在MATLAB上利用Simulink作了仿真, 并在目标板上对算法进行了实现,证明该系统能够同时处理四个通道的信号。(Using MATLAB Design and FPGA realization IIR Filter method Abstract This paper introduces IIR digital filter traditional design Thought and steps and CAD method. And FPGA on efficient realization low IIR filter, its order low, real response fast suitable radar real time, efficient processing environment. Use IIR filter multiphase structure realize the filter systematic method, for four channel circumstances in MATLAB on use Simulink made simulation and target board algorithm was realized proved system can simultaneously four channel signal.)

Blobworld:基于期望最大算法的图像分割 及其在图像查询中的应用 (Blobworld: Image segmentation using Expectation-Maximization and its application to image querying)