Newsgroups: comp.robotics
Path: brunix!uunet!decwrl!csus.edu!netcom.com!nagle
From: nagle@netcom.com (John Nagle)
Subject: Re: Tracked mobile robot dead-reckoning
Message-ID: <1993Jan25.184635.11631@netcom.com>
Organization: Netcom - Online Communication Services  (408 241-9760 guest) 
References: <1k187mINN705@srvr1.engin.umich.edu>
Date: Mon, 25 Jan 1993 18:46:35 GMT
Lines: 11

feng@srvr1 (Liqiang Feng, ) writes:

>I am working on the navigation problem for a tracked vehicle. 
  
      You need a heading reference.  A magnetic compass (flux-gate, 
presumably) or a heading gyro should do it.  You can often keep track
of distance travelled by dead-reckoning, but small errors in heading
have large effects after you've travelled any distance, so you need a
heading reference.

      					John Nagle
