多源数据联合平差以及合理的定权方法实践--以某抽水蓄能电站施工测量控制网为例

Combined Adjustment of Multi-source Data and Practice of Reasonable Weight Determination Method:Take the Construction Survey Control Network of a Pumped Storage Power Station as an Example

GPS与全站仪被广泛运用于抽水蓄能电站施工测量控制网首次建网和复测之中,同一个控制网中有2种不同仪器的观测值,如何平差处理十分重要。本文结合某抽水蓄能电站施工测量控制网建网项目,探讨数据联合平差时注意的事项,并通过独立的外业边、角检核,验证不同种类观测值后定权联合平差方法的可靠性。

GPS and total station are widely used in the first construction and Resurvey of the construction survey control network of pumped storage power station.If there are two kinds of observation values of different instruments in the same control network,the adjustment is very important.Combined with the construction of a pumped storage power station construction survey control network project,this paper discusses the matters needing attention in the data joint adjustment,and verifies the reliability of the joint adjustment method of different kinds of observation values after the verification by independent field edge and angle measurements.