Digital thyristor Trigger of High Accuracy is introduced, which is based on phase locked loop synchronization and suitable for dual antistar rectification circuit.
介绍一种高精度数学晶闸管触发器，它基于锁相环同步，适用于双反星形整流电路，并已成功地应用于晶闸管弧焊电流微机控制系统。
First, the basic principles of geometry rectification of digital aerial images and raster relief map are introduced and thus the accuracy of geometry rectification is improved.
首先，重点阐述了数字航空影像几何纠正，以及栅格地图变形纠正的基本原理，进一步提高了几何纠正的精度。
A rectification method of perspective document image captured by the digital camera was proposed.
提出了一种数码相机拍摄的透视文本图像的校正方法。
A rectification method of perspective document image captured by the digital camera was proposed.
提出了一种数码相机拍摄的透视文本图像的校正方法。
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