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WADGPS home > Research > WADGPS
1. GNSS ý (WA-DGNSS)
 
  GNSS ý̶ GPS (Global Positioning System) ǥǴ ׹ý(GNSS, Global Navigation Satellite System) Ȯ, Ἲ, 뼺 Ű ý Ѵ. ý ټ ر Ʈũ ̿Ͽ ׹ ˵ ð, Ͽ Ἲ ˵ Ͽ ڿ ϰ ȴ. ڴ ۵ Ἲ ȰϿ ׹ Ȯ Ű ׹ ŷ Ͽ 밡ɿ Ǵϰ ȴ. Ϲ GPS 5~10m Ȯ Ǵµ ý Ȱ Ȯ 1~2m ǰ ȴ. ̿ Ͽ ý ַ ϴ .

- ر : GNSS ġ ǰ, Stand-alone Positioning, Hatch Filter
- ߾ ó : ˵ ð ˰, ˰, ǥظ޽ 층, ر Ἲ
- : GNSS ó, Ἲ (RAIM)
Figure 1. ý 䵵
 
 
 2. ý ʿ伺
 
 GPS ˵ , ð , , ִ. ε ű Ȯ ǻŸ ư ǰ ̷ ġ Ȯ ϵǰ ȴ. ̷ ذϱ Ͽ ׹(Differential GPS, DGPS) θ ǰ ִ. ׹ ڽ ġ Ȯϰ ˰ ִ ر GPS ǻŸ Ͽ ڿ ִ ̴. ׹ Ŀ ũ ׹(Local Area DGPS, LADGPS) ׹(Wide Area DGPS, WADGPS) .
 
 ׹ ڽ ġ ǻŸ ũ⸦ Ͽ ڿ ִ ̴. ̷ Ͽ Į ر Ÿ ־ κ ȣİ 谡 ϰ ȴ. ̷ Ѱ LADGPS ر Ŀ 100~200km Ǿ ִ. ر Ŀ Ǿ Ƿ Ϸ ׸ŭ ر ʿϰ ǰ ر ǹǷ ر ֺ DGPS 񽺸 ̿ ٴ ִ. ̷ LADGPS Ѱ踦 غϱ WADGPS̴.
 
 
3. ý
 
 WADGPS ر Ʈũ ȰϿ GPS ǻŸ Ͽ ڿ ϰ ȴ. ڴ Ͽ ڽ ġ ´ Į ġ ٲپ ϰ ȴ.
 
  ر(Wide area Reference Station, WRS) ġ ȹϿ ̸ ߾ ó(Wide area Master Staion, WMS) Ѵ. ߾ ó ر ġ Ͽ ˵ ð , Ͽ ̸ ˵ Ǵ ͳ Ͽ ڿ Ѵ. ڴ ۵ Ͽ ڽ ġ ´ Ͽ Ȯ ġظ ȴ.

 

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