| 重力网拟稳平差 |
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| 引用本文： | 江志恒,刘乃苓.重力网拟稳平差[J].测绘科学,1991(2). |
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| 作者姓名： | 江志恒 刘乃苓 |
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| 作者单位： | 国家测绘局测绘科学研究所，国家测绘局测绘科学研究所 |
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| 摘 要： | 现代附合重力网具有很高的内精度,但它又必须从更高一级的控制网中取得绝对重力基准和尺度,因而出现新的问题:控制网的观测误差及局部重力场随时间变化的因素可能引入附合网。对附合重力网进行拟稳平差,能较好地解决这一矛盾。本文讨论了有关数学模型和实际应用中的若干具体问题。本方法也适用于监测重力网的数据处理。
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On the Quasi—Stable Adjustment for Gravity Net |
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| Abstract: | Morden attached gravimetric net has a high internal precision It has, however, to obtain its absolute gravimetric base and scale from a higher order control net. The question is that the control net's surveying error and its change in gravity with time may damage the accuracy of the attached net. The quasi-stable adjustment is one of the methods to solve this contradiction. Mathematic model and some problems in practice are disscussed in this paper. The given method can also be used for a monitoring gravimetric net. |
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