So it is necessary to study the driving structure and control scheme of new system radar in order to track continuously in whole hemisphere without blindzone.
因此，研究新体制的三轴雷达的驱动结构及控制方案以实现大于半球的全空域无缝隙连续跟踪就变得十分必要。
2
And the paper achieved conversion from the completed polar coordinates to rectangular coordinate, and solved two key problems, dead address and blindzone phenomenon.
本文完成了雷达数据从极坐标到直角坐标的转换，解决了坐标转换易出现的死地址和盲区现象。
3
HF radio communication has a significant communication blindzone in the range of 200 kilometers usually. This disadvantage restricts its application in the near range tactical mobile communication.