A design technique of a Differential Global positioning System (DGPS) digital beacon receiver is presented which can be used to improve the positioning precision.

研究了一种可用于提高GPS定位精度的差分gps (DGPS)数字信标接收机的设计和研制技术。

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In view of the system nonlinearity, a digital variable gain controller is designed to solve the contradiction between large global motion and high stiffness.

考虑系统非线性，设计了数字变增益环节以调节系统大范围运动与高刚度的矛盾。

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Global system for mobile communications, the most widely used digital mobile phone system and the DE facto wireless telephone standard in Europe.

全球移动通信系统，使用最广泛的数字手机系统和欧洲事实上的无线电话标准。

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And several companies had concept and prototype devices that envisioned digital cameras and global positioning system expansion devices that would fit into the SD card slot.

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In 1993, NTT DoCoMo, Japan's principal mobile-phone carrier, opted for a technical standard called Personal Digital Cellular (PDC), which was incompatible with the Global System for Mobile Communications (GSM), the standard adopted by most of the rest of the world.

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Today, they've been supplanted even further by digital compasses that use electronic sensors and devices that take readings from Global Positioning System satellites.

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