Several methods to estimate height anomaly of GPS network are discussed.

对几种估算GPS测区高程异常的方法进行了讨论和分析。

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Middle-Long baseline ambiguity fixing is the kernel of GPS network difference technology.

中长基线模糊度快速解算是GPS网络差分技术的核心内容。

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The numerical partial derivative is introduced to simplify the GPS network adjustment model.

采用数值微商求偏导数的方法，从而使GPS网平差的计算模型非常简洁。

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It can help you track it based on GPS and cellular network signals.

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According to Navsys, the company that developed JLOC, it involves a network of GPS receivers capable of detecting regions of higher than normal signal levels and low signal-to-noise ratios, either of which can indicate interference.

ECONOMIST: GPS jamming

The approval came after years of negotiations with the GPS Industry Council, a trade group for GPS manufacturers, over concerns the new network would interfere with the sensitive receivers in GPS devices.

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