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Sensors and Methods for Mobile Robot Positioning

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128 Part I <strong>Sensors</strong> <strong>for</strong> <strong>Mobile</strong> <strong>Robot</strong> <strong>Positioning</strong><br />

Minivan<br />

Adjacent<br />

vehicle<br />

Zone 1<br />

Zone 2<br />

6 ft<br />

11 ft<br />

Blind spot<br />

detection zone<br />

Zone 3<br />

20 ft<br />

Zone 4<br />

Figure 4.38: The Vehicular Obstacle Detection <strong>and</strong> Warning System employs a<br />

modified FMCW ranging technique <strong>for</strong> blind-spot detection when backing up or<br />

changing lanes. (Courtesy of Safety First Systems, Ltd.)

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