GPS基线解算全过程 procdd

计算拉普拉斯抠图矩阵 用于获得轮廓等 很好用(Matting Laplacian matrix calculations used to obtain contour, etc.)

说明：  WCDMA码分多址通信系统的matlab仿真以及结果(Matlab simulation and results of WCDMA code division multiple access communication system)

说明：  OFDM信号功率谱和频谱的MATLAB实现(Realization of Power Spectrum and Spectrum of OFDM Signal by MATLAB)

基于频谱细化的线性调频信号的参数估计。首先对中频信号延时相乘然后对产生的序列做FFT，初步算出LFM信号的调频斜率，然后用CHIRP-Z变换精确估计。(Estimated based on the parameters of the linear FM signal spectrum refinement. First of delay multiplied by the IF signal and then do the FFT on the resulting sequence, initially calculated the slope of the LFM signal FM accurate estimate, and then use the CHIRP-Z transform.)

提取海岸线资料，用于matlab的m_map地图绘制(extract coastlines)

说明：  基于matlab的软件接收机，利用离线中频数据，实现从捕获、跟踪到定位的一系列过程(The software receiver based on MATLAB realizes a series of processes from acquisition, tracking to positioning by using offline IF data.)

实现了关于MIMO雷达利用ESPRIT算法精确测向问题，精度较高，可以直接使用(The accurate direction finding problem of MIMO radar using ESPRIT algorithm is realized. The accuracy is high, and it can be used directly.)

搭建永磁同步电机的直接转矩控制仿真模型 1，实测电流经过3/2变换得到alpha-beta轴上的电流； 2，估计模块中包含定子磁链和电磁转矩的估算，其中，定子磁链观测是采用基于转子位置和定子电流的磁链估计，电磁转矩直接在alpha-beta轴上计算； 3，转速调节模块和转矩调节模块直接采用PI调节器； 4，预期电压矢量估计模块，根据k时刻的磁链幅值与相位和k+1时刻的磁链幅值和相位计算出来的； 5，SVMPWM是空间电压矢量调制模块，实现空间任意角度任意大小的电压矢量，从而控制磁链轨迹近似为圆型； 6，逆变器模块和电机模块均采用系统自带的；(Build a permanent magnet synchronous motor direct torque control simulation model, the measured current after 3/2 transform the current alpha-beta axis estimated module included in the estimation of the stator flux and the electromagnetic torque, stator flux chain observation is based on the position of the rotor and the stator current flux estimates, the electromagnetic torque directly in the alpha-beta axis 3 speed controller module and torque adjustment module directly using the PI regulator expected voltage vector estimation module , calculated according to the time k flux amplitude the phase and k+1 time flux amplitude and phase 5, SVMPWM the space voltage vector modulation module voltage vector space at any angle of any size, thereby controlling the flux path approximate round inverter module and motor module system comes )

插值滤波器，可以改变样值的抽样速率问题，比如把2倍抽样的样值转换为2.5倍抽样的样值。(Interpolation filter, can change the kind of questions the value of the sampling rate, such as 2 times the sample put the kind of value is converted to 2.5 times the sample value of the sample.)

说明：  智能汽车和智能交通的关键技术，V2X（车联网）无线资源分配(The key technology of intelligent vehicle and intelligent transportation, v2x (Internet of vehicles) wireless resource allocation)