天文大地网 meaning in Chinese
astro geodetic network
astro-geodetic network
astronomical network
Examples
- Adjustment of astrogeodetic network
天文大地网平差 - Astro geodetic net ustment
天文大地网平差 - Astro - geodetic network
天文大地网 - This paper deals with the solution for 200 000 order normal equations in combined adjustment of astro - geodetic and space networks by using conjugate gradient method , puts forward a scheme of adjusting the coefficients and a strategy of separation as well as mergence between the adjustment and inversion
本文研究了用共轭梯度法解算天文大地网与空间网联合平差中20万阶法方程的有关问题，提出了“系数调整策略”和“平差与求逆既分又合的策略” 。 - It is demonstrated that the solution for 141 000 order normal equations for a simulated astro - geodetic network ( 47 057 points ) and a space one ( 476 points ) iterates 4 993 times to converge to 1 10 - 18 second , taking 28 min and 47 seconds , on a pii / 233 computer , showing over 40 times more efficiency , as compared with the coefficients unadjusted
利用模拟的天文大地网( 47057点)和空间网( 476点)在pii / 233微机上解算14 . 1万阶方程组共迭代4993次(收敛至1 10 - 18角秒) ，花费机时28分47秒，与未进行系数调整相比，功效提高40多倍。