ex1

利用M函数仿真扩频通信系统。6个用户的CDMA的同步通信系统，每个用户利用L＝31的Gold码，进行扩频，信道为AWGN信道，接收端利用匹配滤波器进行检测。绘出当N＝10000个发射比特下，SNR＝0：15（dB）时的误码率曲线。 (M function simulation using Spread Spectrum Communication System. 6 simultaneous users of CDMA communication system, each user of the L = 31 the use of Gold codes for spread spectrum, channel for the AWGN channel, the receiving end to detect the use of matched filter. Drawn when N = 10000 bits of transmission, SNR = 0:15 (dB) when the bit error rate curve.)

自己编写的通用2维框架结构，可以计算模态、静力、动力响应 地震反应(I have written the common two-dimensional frame structure, you can calculate the modal, static and dynamic response of the seismic response)

This program calculates Approximate Entropy of a given time series.

信道化软件无线电技术不仅能同时发射整个处理带宽内所有信道上的信号，而且具有很高的计算效率，实时处理能力强，结构简单，可实现性强。这种信道化发射机与信道化接收机一样也是基于多相滤波器来实现的。(Channelized software radio technology can not only transmit signals on all channels in the whole processing bandwidth at the same time, but also has high computational efficiency, strong real-time processing ability, simple structure and strong realizability. The channelized transmitter is also implemented based on polyphase filter as channelized receiver.)

说明：  永磁同步电机的直接转矩控制算法设计 matlab的仿真(PMSM DTC)

用MATLAB实现了最小二乘法，并有较为详尽的注释，望各位赐教(Implemented with MATLAB least squares method, and have more detailed comments, hope you can enlighten)

基于直方图的自适应阈值法实现分割图像前景与背景，matlab编写，包含测试图像和实验报告(Foreground and background to achieve image segmentation histogram-based adaptive threshold method, matlab prepared, containing the test images and test reports)

关于最优化算法的matlab 程序，搜索方向包括线性和非线性搜索(With regard to optimization algorithm matlab program, the search direction, including linear and nonlinear search)

blackman_harris窗函数用于加窗的DFT(blackman_harris window function for windowed DFT)

GSM信道编码的simulink仿真框图和源代码，GSM信道编码的simulink仿真框图和源代码(GSM channel coding simulation simulink block diagram and source code, GSM channel coding simulation simulink block diagram and source code)