This paper introduces one practical method of free network quasi-stable adjustment applied in 2 dimension constrained adjustment of GPS control network.
介绍了自由网拟稳平差的一种实用方法在GPS控制网2维约束平差中的应用。
GPS technique has been applied widely in establishing the kinds of control network. It is tested and verified whether GPS technique is applied to establish photo-control in hills Land.
应用GPS技术建立各种精度要求的控制网已相当普遍，能否用于丘陵地区的像片控制，需要实践来验证。
The paper discusses above problems by practice, and draws some conclusions about the network configuration of BP neural network applied in GPS height conversion.
本文结合实例分析了上述问题，从而得出了BP神经网络用于GPS高程转换时网络配置问题的一些相关结论。
The BP network architecture applied to determine GPS standalone position is designed. Meanwhile, the conjugate gradient algorithm is used to improve the training velocity and accuracy of the network.
本研究设计了适用于GPS单点定位计算的BP人工神经网络模型结构，采用共轭梯度算法改善网络的训练速度和精度。
PTP can be applied in a packet network easily and flexibly with submicrosecond-level synchronization accuracy, and will become an effective alternative to GPS.
PTP技术可方便灵活地应用于分组网络中，同步精度可达亚微秒级，将成为GPS的有效替代。
Now GPS plane network is wide applied, but GPS height is used little.
当前，GPS平面控制网已经得到了广泛的运用，但是GPS高程却运用得不够。
Now GPS plane network is wide applied, but GPS height is used little.
当前，GPS平面控制网已经得到了广泛的运用，但是GPS高程却运用得不够。
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