glonasspvt

步进频率雷达目标的运动参数估计 (Target Motion Parameter Estimation of stepped- frequency radar)

MIMO systems with efficient sum rate analysis

说明：  8. 单径瑞利信道中的四发四收V-BLAST： (1) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真，测量16QAM调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线。 (2) 计算所设计方案的频谱效率是多少，单位为bit/Hz/s。(8. Four transmit four receive v-blast in single-path Rayleigh channel: (1) please design a specific navigation-assisted channel estimation method and conduct simulation with Simulink to measure the bit error rate performance of 16QAM modulation.The relation curve between the bit signal-noise ratio and the mean square error of channel estimation is drawn, and the relation curve between the bit signal-noise ratio and the bit error rate is drawn. (2) calculate the spectral efficiency of the designed scheme in bit/Hz/s.)

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 )

Matlab的模拟退火算法工具箱，这是国外通用免费工具箱，在matlab环境下运行，具体使用说明见压缩文件(Simulating anneal arithmetic tool in Matlab is free fee abroad.It is used under Matlab and detail imformation can be found in rar file.)

说明：  实现GPS伪距单点定位，包括星历解码、载波相位、伪距数据的计算。(Realization of GPS Pseudo Range Single Point Positioning)

mimo ofdm 容量仿真。详细的介绍了mimo的容量问题，仿真实现(mimo ofdm simulation capacity. Described in detail the capacity of mimo problems Simulation)

自适应动态规划，利用BP神经网络，进行迭代更新，得到最优值(Adaptive dynamic programming using BP neural network)

DVB-S2 LDPC代码，不含有级联的BCH码(In our following paper, we find that the shortten codes of DVB-S2 have some problems,this program can provide a good DVB-S2 LDPC code without cascaded BCH codes)

一个由matlab编写的从多视点拍摄的图像计算Visual Hull的简单的演示程序，基于空间体积的方法求物体的Visual Hull，对实现由多视点图像求Visual Hull的过程可以起到借鉴作用(Matlab prepared by a multi-viewpoint images of the Visual Hull calculate simple demo program, the method of space-based volume objects for Visual Hull, the realization of multi-viewpoint image for Visual Hull of the process can play a useful reference)