平差功课题(国外英文资料).docVIP

平差作业题(国外英文资料) Measure the adjustment of the second and third chapters 1. To the known for identification precision of the theodolite, accurate determination of the horizontal Angle of 45 ° 00 (alpha = 00.0 ) for 12 times observations, The result is: 45 ° 00 06 , 55 ° 44 59 , 44 59 58 °, 45 ° 00 04, 45 ° 00 03, 45 ° 00 04, 45 ° 00 00 , ° 44 58 59 , 59 ° 44 59 , ° 44 59 59, 45 ° 00 06, 45 ° 00 03. So lets say that alpha doesnt have any error, so lets try to figure out what the error is in the observed values. Given the distance between the two distances and the median error of 300.465 + or minus 4.5 cm, 660.894 plus or minus 4.5 cm, are the errors in the two lengths equal to each other? Are they the same as the maximum difference? Do they have the same accuracy? Is their relative accuracy equal? I know that L1, the middle error of L2 is m The middle error (independent) of the test. In the delta ABC of figure 1-1, the direct observations are worthwhile B = 106.00 m + 0.06 m, beta = 29 ° 39 + 1 and gamma = 120 ° 07 + 2, try to calculate length C and its error in MC. Set new level points P1, P2 (see figure 1-2) at the two levels of A known height. The high difference observation value and the error of the error, weihap1 = + 3.783 m plus or minus 3.7 mm, hp1p2 = -1.246 m plus or minus 5.2 mm, if the point A and B have no error. Try for: (1) the median error in the elevation of P2 by A; (2) the middle error of the P2 point elevation from B point; (3) calculate the middle error between P2 and B. We know that the log of the observed values and the covariance matrix DLLS, that make up the function X equals AL, Y equals BX, and try to find the covariance matrix DXL, DYL, DXY. I have a vector that has a covariance matrix Try to find the variance of the following functions: (1); (2) 8. At senior level A and B (its elevation without error) setting level line as shown in figure 1-3, route for S1 = 2 km long, S2 = 6 km, S3 = 4 km, set per kilometer observation elevation difference