3D Time-of-flight distance measurement with custom - Universität ...

44 CHAPTER 2
1
0.5
MODULATION SIGNAL
0
0 100 200 300 400 500 600 700 800 900 1000
400
200
CORRECT PHASE AND CALCULATED PHASE
0
0 50 100 150 200 250 300 350
1
0
ERROR = ± 0
-1
0 50 100 150 200 250 300 350
1
0.5
0
MODULATION SIGNAL
cos
-0.5
0 100 200 300 400 500 600 700 800 900 1000
400
200
CORRECT PHASE AND CALCULATED PHASE
0
0 50 100 150 200 250 300 350
1
0
ERROR = ± 0
-1
0 50 100 150 200 250 300 350
1
0.5
0
400
200
cos(x) + cos(2x)
MODULATION SIGNAL
0 100 200 300 400 500 600 700 800 900 1000
0
0 50 100 150 200 250 300 350
1
0
CORRECT PHASE AND CALCULATED PHASE
-1
0 50 100 150 200 250 300 350
1
0.5
0
400
200
ERROR = ± 0
cos(x) + cos(4x)
MODULATION SIGNAL
0 100 200 300 400 500 600 700 800 900 1000
0
0 50 100 150 200 250 300 350
1
0
CORRECT PHASE AND CALCULATED PHASE
ERROR = ± 0
-1
0 50 100 150 200 250 300 350
(a), (b)
(c), (d)
(e), (f)
(g), (h)
1
0.5
MODULATION SIGNAL
0
0 100 200 300 400 500 600 700 800 900 1000
400
CORRECT PHASE AND CALCULATED PHASE
200
0
0 50 100 150 200 250 300 350
1
ERROR = ± 0
0
-1
0 50 100 150 200 250 300 350
1
0.5
0
MODULATION SIGNAL
cos 2
0 100 200 300 400 500 600 700 800 900 1000
400
CORRECT PHASE AND CALCULATED PHASE
200
0
0 50 100 150 200 250 300 350
10
0
-10
1
0.5
0
ERROR = ± 19.46
0 50 100 150 200 250 300 350
cos(x) + cos(3x)
MODULATION SIGNAL
0 100 200 300 400 500 600 700 800 900 1000
400
CORRECT PHASE AND CALCULATED PHASE
200
0
0 50 100 150 200 250 300 350
10
0
ERROR = ± 11.53
-10
0 50 100 150 200 250 300 350
cos(x) + cos(5x)
0 100 200 300 400 500 600 700 800 900 1000
400
CORRECT PHASE AND CALCULATED PHASE
200
cos(x) + cos(6x)
cos(x) + cos(7x)
Figure 2.14 (a-h) Influence of modulation signal on phase accuracy I.
1
0.5
0
MODULATION SIGNAL
0
0 50 100 150 200 250 300 350
5
0
-5
ERROR = ± 8.21
0 50 100 150 200 250 300 350