A Fast Adjustment Algorithm of Earthquake Precise Leveling Network
Abstract Generally, there are many calculations of about zero in the traditional adjustment algorithm, which is useless and decreases the calculation efficiency, especially when the data quantity is very large. The new adjustment algorithm avoids the problem above effectively, and the new algorithm is further improved using a variable-loop-and-renumber-method. Finally, the new adjustment algorithm is used to adjust the precise leveling data in Tianjin, and the results show that new algorithm is more effective.
Key words :
earthquake leveling network
adjustment
symmetric positive definite matrix
variable-loop-and-renumber-method
Cite this article:
ZHU Wenwu,QIN Kun,LIU Jinzhao et al. A Fast Adjustment Algorithm of Earthquake Precise Leveling Network[J]. jgg, 2018, 38(7): 695-697.
ZHU Wenwu,QIN Kun,LIU Jinzhao et al. A Fast Adjustment Algorithm of Earthquake Precise Leveling Network[J]. jgg, 2018, 38(7): 695-697.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2018/V38/I7/695
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