This scheme is initiated by Ziv and Lempel [1]. A slightly modified version is described by Storer and Szymanski [2]. An implementation using a binary...
为了提高直接转矩控制（DTC）系统定子磁链估计精度，降低电流、电压测量的随机误差，提出了一种基于扩展卡尔曼滤波（EKF）实现异步电机转子位置和速度估计的方法。扩展卡尔曼滤波器是建立在基于旋转坐标系下由定子电流、电压、转子转速和其它电机参量所构成的电机模型上，将定子电流、定子磁链、转速和转子角位置作为...
用jquery实现的渐变式下拉菜单jQuery 渐变下拉菜单。使用slideToggle和slideUp来实现.当然,也可以使用hide/show, fadeIn/fadeOut等来实现,只是效果不同,实现的方法还是相同的.需要注意的是,要给.dropdown加上position:relative ...
The idea behind differential GPS is to remove as much errors as possible from the range measurements by establishing these errors at a reference site....
Of the various applications that satellites have been used for, one of the most promising is that of global positioning. Made possible by Global Navig...
