Т. 56. Бр. 2. Международна юбилейна научна конференция "80 години УАСГ".
Рез. на англ. ез.
Анотация
"The objective of this paper is to compare two modes of an adjustment of the Third Levelling of Bulgaria data. The first one is a parametric adjustment of the network as free. The second mode is a parametric adjustment with the condition that the sum of the corrections of the adjusted heights of the nodal bench in the network is equal to zero. Both variants use as a datum level the fundamental benchmark in Varna. The comparison of the results derived from both approaches shows that the mean errors in the adjusted heights of the nodal benchmarks in the network obtained in the second variant are almost twice less than the corresponding errors produced by the first mode. It is also shown that the first variant produces a systematic increase of the mean errors of the adjusted heights with distancing from the datum point in Varna. Such systematic behavior was not detected in the second variant of the adjustment. The absolute differences in the adjusted heights of the benchmarks also increase with distancing and exceed 10 mm for one half of the benchmarks, which is higher than the obtained mean errors in the heights of the benchmarks in the second variant."
Angelov, A., Cvetkov, V. Reducing error propagation in an adjustment of precise levelling networks,
УАСГ, 2023, с. 657 - 666.
Angelov, A., Cvetkov, V. .
Reducing error propagation in an adjustment of precise levelling networks.
София: УАСГ, 2023, с. 657 - 666.
Angelov, A., Cvetkov, V. (2023)
Reducing error propagation in an adjustment of precise levelling networks,
София: УАСГ, с. 657 - 666
Angelov, A., & Cvetkov, V.
(2023).
Reducing error propagation in an adjustment of precise levelling networks. Годишник на Университета по архитектура, строителство и геодезия - УАСГ. София: УАСГ 56 (бр. 2.), с. 657 - 666.
