tuxiangfenjiechonggou

这是关于利用小波变换进行二层压缩的小程序，利用小波工具箱，进行图像编码，分层，解压缩，最后还原。(This is a program about wavelet)

Addition for existing code

特征提取SIFT算法，对放缩 旋转不变性使此算法的经典之处。模式识别的必会算法(SIFT feature extraction algorithm, scaling rotation invariance to the classic between the algorithm. Pattern recognition algorithm will be)

Evaluation of immaging array in 2 dimensional...

H1632 code from sun electronics

UC3854功能图，引脚图，各项参数图，以及元器件的选取。(hardware and software of UC3854)

信号处理工具集，瑞典林雪平控制系编写，没有说明，有一些数据(signal processing tool box，sweden linkpon control department code，no specification，some data)

针对永磁同步电机常规直接转矩控制系统涉及到的问题,例如磁链的准确观测、定子电阻的变化、电压矢量开关表的改进以及滞环控制器的改进等等,本文都作了详细的分析,并提出了改进方案。为了提高系统的性能,本文将空间矢量调制的方法引入了常规直接转矩控制中,并在此基础上,对永磁同步电机无速度传感器问题作了详细的分析,总结了国内外的研究热点,提出了采用转子磁链矢量为基础的永磁同步电机直接转矩控制速度估计方法。仿真结果表明,该方案具有很好的动、静态特性。(Firstly, the paper analyzes the principle of direct torque control of permanent magnet synchronous motor and elaborates the impact of space voltage vector of the stator flux and the electromagnetic torque.Secondly, the paper introduces direct torque control of permanent magnet synchronous motor SVPWM technology.Under the same hardware conditions,the system can obtain More continuous voltage space vector by taking advantage of SVPWM.The simulation results show the program not only keeps the direct torque control fast dynamic response, but also reduce the motor torque ripple.)

通过Matlab仿真实现GPS定位算法的实现(GPS positioning algorithm and implementation,)

Poincare code for detect the area of object. this the new work.