跟踪

In order to efficient extract the maximum output power from a photovoltaic system it is important to have an efficient Maximum Power Point Tracker.

一种高效的最大功率跟踪方法对于提高光伏发电系统的输出效率是非常重要的。

By using particle filter method based on Incremental Principal Component Analysis, this system incrementally learns a low dimensional eigenspace representation of the tracking results to reflect appearance variation of the target object.

该系统利用基于增量式主成分分析的粒子滤波方法增量式地学习一个表示跟踪结果的低维特征空间，以反映目标物体的外观变化。

Because of the presence of the difference of the gray value and the distortion between the object image and the reference image, traditional matching method will be degraded. We need more useful characters. Eigenspace approach is a promising candidate for an appearance-based object representation.

文中提出基于奇异值分解的跟踪算法，算法首先建立模板图像训练集合，利用奇异值分解方法，张成模板图像特征空间，然后求出模板图像在特征空间里的投影值，代替传统算法中灰度对两幅待匹配图像进行的全局搜索定位。

To better understand the mass and structure of these stellar ejecta and track their velocity, NASA has turned to the dual STEREO (Solar TErrestrial RElations Observatory) satellites.

为了更好地了解质量和结构的这些恒星喷出物和跟踪他们的速度，美国航空航天局已经转向双立体声卫星。

Track your distance, elapsed time and pace when you are on the go!

跟踪您的距离，所用的时间和速度当你去的！

Hi-sensitive electric eye, which trace the printed web on film and make the sealing on accurate position.

高感受度光电眼色标跟踪，使封切位置更加准确

Hisensitive electric eye, which trace the printed web on film and make the sealing on accurate position.

高感受度光电眼色标跟踪，使封切位置更加准确

Printing Type:Ink roll; electric eye for tracing; automatic printing

打印方式：采用固体墨轮，电机驱动，电眼跟踪自动打印。

The control method of maximal power point tracking is adopted, so that the energy of sun or wind is inverted into electrical potential energy efficiently to drive photovoltaic pump. The device contains DC-DC and DC-AC two parts.

该电源可选择太阳能电池阵列、蓄电池或风能发现整流输出直流电压作为输入，通过MPPT控制方法实现最大功率点跟踪，从而高效地将太阳能或风能转化为电能来拖动水泵。

This method offers high selectivity, long life, no influence of surroundings gases, no electromagnetic induction and so on.

这种方法有很多优点，可以多选择性，长时间跟踪，并且对油箱内气体的没有影响，对变压器本身也没有电磁影响等。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了