Short_time_FFT_with_octave_smooth

DSP 快速傅立叶变换 c语言实现的........(dsp FFT 32*32 c language relize ........)

说明：  ：载波频率偏移是OFDM系统实现的关键问题之一。分析了OFDM 系统载频偏移估计的2 种算法，即利用循环前缀和训练序列方法。它们均为最大似然估计方法。分别讨论了它们的基本 思想、实现方法和仿真结果。可以看出基于循环前缀算法复杂度较小，精度不高，而基于训练序列 的算法有较高的估计精度，但降纸了系统传输效率。(Abstract：Carrier frequency ofset is one of the key problems in OFDM system．Two foundational methods 。cycling prefix—based and training sequence—based algorithms。to estimate OFDM carriers~equency ofset are analyzed．Then it discusses their basic thoughts。implementing methods and simulation resuits． Finally。merits and demerits of every algorithm are supposed．It concludes that the cycling prefix— based algorithm has less complexity and less precision。and that the training sequence—based algorithm has better estimation performance at the cost of transmission efficiency．)

说明：  广义线性调频小波的变换的程序，可实际运行！(General linear chirplet transform procedures, can actually run!)

PSCAD PWM_DC_Motor_Control_1 PWM直流电机控制模型(PSCAD PWM_DC_Motor_Control_1 PWM DC motor control model)

说明：  灰度级伪彩色编码，将灰度分为4级添加不同的颜色(Gray level pseudo-color coding)

BPSK在AWGN信道下的仿真程序，matlab代码，功能齐全，是一个很好的平台(BPSK in AWGN channel under the simulation program, matlab code, full-featured, is a good platform)

说明：  人工蜂群算法优化无刷直流电机PID控制，并采用三种评价指标函数IAE、ITAE、ITSE来进行对比分析(PID control of BLDCM is optimized by artificial bee colony algorithm, and three evaluation index functions IAE, ITAE and itse are used for comparative analysis)

电力拖动自动控制系统—运动控制系统课件，为学习和理解电机控制理论提供帮助。(Electric drive control system- motion control system software for learning and understanding of motor control theory to help.)

PPM调制信号的产生，产生随机信号。亲测可用(The generation of PPM modulation signal)

通过两个例子，将Optisystem和matlab这两个软件结合进行光学仿真，两个例子分别为光波频率右移和光波幅度调制。通过这两个例子，能很好的理解这两个软件的协同仿真。上传的文件包括文献和源码，还有optisystem的osd文件，文件很全。(Two examples are used to combine the two software Optisystem and MATLAB for optical simulation. The two examples are the right shift of the light frequency and the modulation of the amplitude of the light wave. Through these two examples, we can well understand the collaborative simulation of these two software. Upload files, including documents and source code, as well as the optisystem OSD file, the document is very complete)