q12

Differential Evolution for optimal power flow

说明：  光纤LP31模式,光纤模式计算，纤芯模式，有效折射率(Fiber LP31 mode, fiber mode calculation, fiber core mode, effective refractive index)

rayleigh fanding 通讯系统matlab仿真(rayleigh fanding communication system simulation matlab)

（1）MATLAB发展历史和产品族简介 （2）MATLAB的桌面环境 （3）MATLAB的主要功能 （4）MATLAB通用指令（重点） （5）MATLAB帮助系统 (failed to translate)

说明：  一时间离散序列的自相关函数计算与DFT得出的功率谱(For a discrete sequence calculated the autocorrelation function of the power spectrum obtained with the DFT)

利用相关分析法对系统进行辨识，使用matlab,能够成功辨识出系统传递函数(Correlation analysis method using the system identification, the use of matlab, can successfully identify the system transfer function)

二维的圆阵的doa估计算法实现，实现二维的doa估计(2-d doa estimation algorithm for the circle array)

详细介绍交互多模型算法原理，算法流程并附带模型仿真程序(Details IMM algorithm, the algorithm processes and procedures with model simulation)

In this paper, we describe a novel approach for reducing the power consumption and complexity of a multiband orthogonal frequency-division multiplexing (MB-OFDM) ultrawideband (UWB) system by applying ideas from pulsed UWB ystems. The approach is quite general and applicable to many other systems. Unlike the MB-OFDM system, the enhancement that we propose uses pulses with duty cycles of less than 1 as the amplitude shaping pulse of orthogonal frequency-division multiplexing (OFDM) modulation.

不同的窗函数，都对应不同的幅值修正系数；针对复制修正中最重要的平顶窗，给出修正的方法。(Different window functions, corresponding to the amplitude correction factor copy the most important amendment of the flat-top windows, give a correction method.)