pmsm

完成DSSS调制解调功能 mode[1，2] 1进行调制，2进行解调，未指定时自动完成这两个功能(Completion of DSSS modulation and demodulation functionality mode [1,2] 1 modulation, 2 to carry out demodulation, when the auto-complete does not specify that these two functions)

基于规则将一张图片中的目标物体使用窗口进行覆盖，窗口之间允许叠加．窗口大小与窗口中心间隔参数可以自定义．(Rules based on the target object in an image using the window cover to allow superposition between windows. Window size and window center of the interval parameters can be customized.)

一种用Newton-Rapson Method来计算能量的Matlab code(Newton-Rapson Method to determine the slack bus power( 3 buses)/)

自适应阈值滤波程序，广泛应用于去噪等信号处理领域(Adaptive threshold filter program, widely used in signal processing such as denoising)

二阶锁相环在输入信号为调频信号是的混沌特性分析(Second-order PLL FM signal in the input signal is Chaotic Characteristic Analysis)

Math istruction for assembler,the are the first istruction for a programm of emulator,in particolar with the programm emu8086

针对采用自并励励磁系统的同步发电机组，对其建立机端电压的过程进行的仿真案例。(Study on the Field Flashing Control of Large Synchronous Generator)

讲述在移动通信方面的信道估计的原理及研究(Described in the mobile communications channel estimation principle and Research)

摘要:正交频分复用(OFDM)是第四代移动通信的核心技术。该文首先简要介绍了OFDM基本原理,重点研究了理想同步情 况下,保护时隙(CP)和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对OFDM系统性能的影响。在给出OFDM系 统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序。最后给出在不同的信道条件下,保 护时隙、信道估计方法对OFDM系统误码率影响的比较曲线,得出了较理想的结论。 (O FDM is the key techno logy of 4G in the field of mobile comm unication.In this article O FDM ba sic p rinc ip le is briefly in troduced.Then,the influence of CP and d iffe rent channe l e stim a tion on the system pe rfo rm ance is emp ha tica lly analyzed respectively in Gauss and R ayle igh fading channe ls in the cond ition of ideal synchronization.B e sides,based on the given system mode l O FDM system is compu te r sim u la ted w ith MA TLAB language and the refe rentia l design p rocedure is given.Fina lly,the B ER cu rves of CP and channe l e stim ation a re given and comp ared.The conclusion is sa tisfac to ry. )

基于matlab设计的窗函数，表示窗函数的幅频特性(Matlab-based design of the window function, said window function of the amplitude-frequency characteristics)