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doc:lps:tdoa3:protocol

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doc:lps:tdoa3:protocol [2018-05-02 14:44]
kristoffer 		doc:lps:tdoa3:protocol [2018-06-13 09:22]
kristoffer
Line 25: Line 25:
  
 <ditaa> <ditaa>
-              +--------+--------------------+----------+ +                    +--------+--------------------+----------+ 
-Packet    :   | Header | Remote anchor data | LPP data | +Packet    :         | Header | Remote anchor data | LPP data | 
-              +--------+--------------------+----------++                    +--------+--------------------+----------+
  
                                   7 bytes                                   7 bytes
-               <-------------------------------------------> +                     <-------------------------------------------> 
-                8 bits   8 bits     32 bits       8 bits +                      8 bits   8 bits     32 bits       8 bits 
-               <------> <------> <-----------> <-----------> +                     <------> <------> <-----------> <-----------> 
-              +--------+--------+-------------+-------------+ +                    +--------+--------+-------------+-------------+ 
-Header    :   |  type  |  seq   | txTimeStamp | remoteCount | +Header    :         |  type  |  seq   | txTimeStamp | remoteCount | 
-              +--------+--------+-------------+-------------++                    +--------+--------+-------------+-------------+
  
    
Line 44: Line 44:
                     +--------+-------------+--------+-------------+--------------+                     +--------+-------------+--------+-------------+--------------+
 Remote anchor data: |   id   | hasDistance |  seq   | rxTimeStamp |   distance   | Remote anchor data: |   id   | hasDistance |  seq   | rxTimeStamp |   distance   |
-                    +--------+-------------+--------+-------------+--------------+ +                    +--------+-------------+--------+-------------+--------------+                                                            
-                     +
-                     +
-LPP data: TBD +
-                    +
 </ditaa> </ditaa>
  
Line 62: Line 58:
     * **rxTimeStamp:** receive time stamp of latest packet from the remote anchor     * **rxTimeStamp:** receive time stamp of latest packet from the remote anchor
     * **distance:** time of flight between the current anchor and the remote anchor in radio timer ticks     * **distance:** time of flight between the current anchor and the remote anchor in radio timer ticks
 +  * **LPP data:** See [[doc:lps:lpp#lpp_short_packets|LPP short packet description]]
  
 ===== Tag implementation ===== ===== Tag implementation =====
Line 67: Line 64:
 A TDoA tag is simply an UWB sniffer. A sniffer can use the data in the packets together with the packet receive timestamps to calculate its position. A TDoA tag is simply an UWB sniffer. A sniffer can use the data in the packets together with the packet receive timestamps to calculate its position.
  
 +===== Trying it out =====
 +
 +See [[doc:lps:toda3|instructions of how to compile for TDoA3]]
doc/lps/tdoa3/protocol.txt · Last modified: 2020-05-12 14:08 by kimberly

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