测线

• Two practical applications prove their efficiency . 3 . using knowledge of adjustment with additional systematic parameters , based on an analysis of the sources of errors in airborne gravity measurements , an error model is studied to constructed mathematically which can characterize the change of systematic errors and with which three kinds of new crossover adjustment models are presented
  3 、根据附加系统参数平差的理论，在分析、总结航空重力测量的主要误差源基础上，研究建立了反映航空重力测量系统误差变化规律的误差模型，并根据三种不同的情况建立了相应的测线网平差模型。