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参数资料
| 型号： | GPSORION |
| 厂商： | Mitel Networks Corporation |
| 英文描述： | 12 Channel GPS Receiver Design Product Brief |
| 中文描述： | 12通道GPS接收机的设计产品简介 |
| 文件页数： | 4/5页 |
| 文件大小： | 240K |
| 代理商： | GPSORION |
4
GPS Orion PRODUCT BRIEF
NOTES:
1) COLD START:-
A cold start results when there is no valid Almanac or Ephemeris information available for the satellite
constellation in SRAM, or when the time and/or position information is NOT known (i.e starts at 0 in both
cases).
Also a cold start will be initiated if an Almanac is valid, but a fix cannot be achieved within 10 minutes of
power-up. This could occur if the receiver position has moved significantly since it was last powered-up, but
the position change and time are NOT initialised by the user
2) WARM START:- A warm start results when there is a valid Almanac, and the initial time and position are known in SRAM,
but the ephemeris is NOT valid (i.e more than 4 - 6 hours old).
3) HOT START:-
A hot start results when there is a valid Almanac, valid ephemeris (i.e. less than 4 - 6 hours old), and when
accurate time and position information are also known in SRAM (position error less than 100km, time error
less than 5 minutes). This can be simulated by a momentary Soft-Reset (i.e. press the push-button on the
GPS Orion interface Board).
Next step
The GPS Architect is available for designers who wish to develop the software further. This software, which supports the GP2000
chipset is available in both executable and source format, and is available for modification and/or embedding into the target
application. Purchase of a GPS Architect Development System provides optimum flexibility and control in the design approach
demonstrated by the GPS Orion, and includes a licence to modify the software and use it in embedded form with the target
application.
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| GPSP1M827B | 制造商:Allis Communications Co.,Ltd 功能描述: |
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