Olsztyn, 24.03.2014r.
Sprawozdanie nr 2
Transformacja współrzędnych.
Ewelina Mroczkowska
GiG III, grupa 2
numer 18
Dane:
współrzędne w układzie WGS84
1 | 2 | 3 | |
---|---|---|---|
X | 3524523,479 | 3592275,204 | 3648845,969 |
Y | 1329693,746 | 1326519,615 | 1359140,201 |
Z | 5129846,405 | 5083787,019 | 5034919,536 |
ρ”=206264,806”
∆x=-23,0
∆y=124,5
∆z=82,5
δω=1,8”=8,72665*10-6rad
δψ=2,0”=9,69627*10-6rad
δε=-2,5”=-1,21203*10-5rad
∆=0,0000038
Wzór:
$\begin{bmatrix} \begin{matrix} X \\ Y \\ Z \\ \end{matrix} \\ \end{bmatrix}$42=$\begin{bmatrix} \begin{matrix} x \\ y \\ z \\ \end{matrix} \\ \end{bmatrix} + \begin{bmatrix} 1 + & \text{δω} & - \text{δψ} \\ - \text{δω} & 1 + & \text{δε} \\ \text{δψ} & - \text{δε} & 1 + \\ \end{bmatrix}$*$\begin{bmatrix} \begin{matrix} X \\ Y \\ Z \\ \end{matrix} \\ \end{bmatrix}$WGS84
Obliczenia:
$\begin{bmatrix} \begin{matrix} \mathbf{X}\mathbf{1} \\ \mathbf{Y}\mathbf{1} \\ \mathbf{Z1} \\ \end{matrix} \\ \end{bmatrix}$= $\begin{bmatrix} \begin{matrix} - 23,0 \\ 124,5 \\ 82,5 \\ \end{matrix} \\ \end{bmatrix}$+$\begin{bmatrix} \begin{matrix} 1,0000038 & 8,72665*10\hat{} - 6 & - 9,69627*10\hat{} - 6 \\ - 8,72665*10\hat{} - 6 & 1,0000038 & - 1,21203*10\hat{} - 5 \\ 9,69627*10\hat{} - 6 & 1,21203*10\hat{} - 5 & 1,0000038 \\ \end{matrix} \\ \end{bmatrix}$*
*$\begin{bmatrix} 3524523,479 \\ 1329693,746 \\ 5129846,405 \\ \end{bmatrix}$=$\begin{bmatrix} \begin{matrix} - 23,0 \\ 124,5 \\ 82,5 \\ \end{matrix} \\ \end{bmatrix}$+$\begin{bmatrix} 3524498,736 \\ 1329605,866 \\ 5129916,19 \\ \end{bmatrix}$=$\begin{bmatrix} \mathbf{3524475}\mathbf{,}\mathbf{736} \\ \mathbf{1329730,366} \\ \mathbf{5129998}\mathbf{,}\mathbf{690} \\ \end{bmatrix}$
$\begin{bmatrix} \begin{matrix} \mathbf{X}\mathbf{2} \\ \mathbf{Y}\mathbf{2} \\ \mathbf{Z}\mathbf{2} \\ \end{matrix} \\ \end{bmatrix}$= $\begin{bmatrix} \begin{matrix} - 23,0 \\ 124,5 \\ 82,5 \\ \end{matrix} \\ \end{bmatrix}$+$\begin{bmatrix} \begin{matrix} 1,0000038 & 8,72665*10\hat{} - 6 & - 9,69627*10\hat{} - 6 \\ - 8,72665*10\hat{} - 6 & 1,0000038 & - 1,21203*10\hat{} - 5 \\ 9,69627*10\hat{} - 6 & 1,21203*10\hat{} - 5 & 1,0000038 \\ \end{matrix} \\ \end{bmatrix}$*
*$\begin{bmatrix} 3592275,204 \\ 1326519,615 \\ 5083787,019 \\ \end{bmatrix}$=$\begin{bmatrix} \begin{matrix} - 23,0 \\ 124,5 \\ 82,5 \\ \end{matrix} \\ \end{bmatrix}$+$\begin{bmatrix} 3592251,137 \\ 1326431,690 \\ 5083857,247 \\ \end{bmatrix}$=$\begin{bmatrix} \mathbf{3592228}\mathbf{,}\mathbf{137} \\ \mathbf{1326556,190} \\ \mathbf{5083939}\mathbf{,}\mathbf{747} \\ \end{bmatrix}$
$\begin{bmatrix} \begin{matrix} \mathbf{X}\mathbf{3} \\ \mathbf{Y}\mathbf{3} \\ \mathbf{Z}\mathbf{3} \\ \end{matrix} \\ \end{bmatrix}$= $\begin{bmatrix} \begin{matrix} - 23,0 \\ 124,5 \\ 82,5 \\ \end{matrix} \\ \end{bmatrix}$+$\begin{bmatrix} \begin{matrix} 1,0000038 & 8,72665*10\hat{} - 6 & - 9,69627*10\hat{} - 6 \\ - 8,72665*10\hat{} - 6 & 1,0000038 & - 1,21203*10\hat{} - 5 \\ 9,69627*10\hat{} - 6 & 1,21203*10\hat{} - 5 & 1,0000038 \\ \end{matrix} \\ \end{bmatrix}$*
*$\begin{bmatrix} 3648845,969 \\ 1359140,201 \\ 5034919,536 \\ \end{bmatrix}$=$\begin{bmatrix} \begin{matrix} - 23,0 \\ 124,5 \\ 82,5 \\ \end{matrix} \\ \end{bmatrix}$+$\begin{bmatrix} 3648822,602 \\ 1359052,499 \\ 5034990,522 \\ \end{bmatrix}$=$\begin{bmatrix} \mathbf{3648799}\mathbf{,}\mathbf{602} \\ \mathbf{1359176,999} \\ \mathbf{5035073}\mathbf{,}\mathbf{022} \\ \end{bmatrix}$
Wyznaczenie parametrów transformacji
X=-(ATA)-1*ATL
V=[∆x+∆*X84] + [X84-X42]
V= AX + L
1 | 0 | 0 | 3524523,479 |
---|---|---|---|
0 | 1 | 0 | 1329693,746 |
0 | 0 | 1 | 5129846,405 |
1 | 0 | 0 | 3592275,204 |
0 | 1 | 0 | 1326519,615 |
0 | 0 | 1 | 5083787,019 |
1 | 0 | 0 | 3648845,969 |
0 | 1 | 0 | 1359140,201 |
0 | 0 | 1 | 5034919,536 |
A=
-998,3835261 | -372,251 | -1413,647 | 0,000278121 |
---|---|---|---|
-372,2512238 | -139,175 | -527,2599 | 0,000103733 |
-1413,646996 | -527,26 | -2002,635 | 0,000393933 |
0,000278121 | 0,000104 | 0,000394 | -7,75023E-11 |
(ATA)-1=
47,74344 |
---|
-36,6201 |
-152,285 |
47,06708 |
-36,575 |
-152,728 |
46,09361 |
-36,7976 |
-153,486 |
L=
140,904122 |
---|
-109,992694 |
-458,498596 |
-1972107688 |
ATL=
-60,60452 |
---|
31,578117 |
133,51803 |
3,8E-06 |
X=
-47,2113 |
---|
36,63095 |
153,0114 |
-46,9539 |
36,61889 |
152,8364 |
-46,7389 |
36,74285 |
152,6507 |
AX=
0,532103528 |
---|
0,010879301 |
0,726944565 |
0,113198636 |
0,043869126 |
0,108476856 |
-0,64530216 |
-0,05474843 |
-0,83542142 |
V=
VTV=1,955548
m0=0,807372
LT= [47,743 -36,620 -152,285 47,067 -36,575 -152,728 46,094 -36,798 -153,486]
LTAX= [-80724,62859]
LTL= [80726,58414]
LTAX+LTL=1,955548
Analiza dokładności:
m=m0*$\sqrt{{{(A}^{T}A)}^{- 1}}$
m∆x= 25,511
m∆y= 9,525
m∆z= 36,131
m∆= 7,108*10-6
Wyniki:
Parametry transformujące:
∆x | -60,60 m |
---|---|
∆y | 31,58 m |
∆z | 133,52 m |
∆ | 0,0000038 |
Błędy do parametrów transformujących:
m∆x | 25,511 m |
---|---|
m∆y | 9,525 m |
m∆z | 36,131 m |
m∆ | 0,000007108 |