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

96 CHAPTER 4
Range accuracy (std) in cm
80.0
70.0
60.0
50.0
40.0
30.0
20.0
10.0
0.0
C_demod=5%
C_demod=10%
C_demod=20%
C_demod=40%
C_demod=100%
1 2 3 4 5 6 7
Distance in meters
Figure 4.6 Range accuracy ∆L versus demodulation contrast Cdemod and target
distance R according to Equation 4.17.
Target reflectivity ρ = 0.5; all other conditions as for Figure 4.4 and Figure 4.5.
Range accuracy (std) in cm
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
#backgr. electr.: 20,000
#backgr. electr.: 50,000
#backgr. electr.: 100,000
#backgr. electr.: 200,000
#backgr. electr.: 500,000
1 2 3 4 5 6 7
Distance in meters
Figure 4.7 Range accuracy ∆L versus background brightness and target
distance R according to Equation 4.17.
Target reflectivity ρ = 0.5; Cdemod = 40%; all other conditions as for Figure 4.4 and
Figure 4.5.