Page 100 - Autonomous Mobile Robots

Millimeter Wave RADAR Power-Range Spectra Interpretation 83

(a)

40
20
30

Range (m) 15 bank 20
Mud
10
RADAR 10
Wooden plane reflector 0
5
–10

–4 –3 –2 –1 0 1 2 3 4
Range (m)

(b) 25

40
20
30
Mud
15
Range (m) 20
bank
RADAR
10
reflector 10
Perspex sheet 0
5
–10

–4 –3 –2 –1 0 1 2 3 4
Range (m)
FIGURE 2.24 Initial test results carried out to show the RADAR wave penetration with
2
different objects. (a) A scan of a RADAR reflector of RCS 177 m , 14 m from the
RADAR, and a wooden sheet of thickness 0.8 cm visually occluding the reflector from
the RADAR. The wooden sheet is 8.5 m from the RADAR. (b) A RADAR reflector of
2
RCS 177 m , 14 m from the RADAR, and a perspex sheet of thickness 0.5 cm, 8.5 m
from the RADAR. Again, the reflector is visually occluded from the RADAR.

© 2006 by Taylor & Francis Group, LLC

FRANKL: “dk6033_c002” — 2006/3/31 — 17:29 — page 83 — #43