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* For civilian accuracy, the equivalent of $100 GPS receivers, the signal of interest (C/A) is at 1575.42MHz(L1) with a bandwidth of ~2.046MHz. | * For civilian accuracy, the equivalent of $100 GPS receivers, the signal of interest (C/A) is at 1575.42MHz(L1) with a bandwidth of ~2.046MHz. | ||
| − | * For surveying accuracy, the signals of interest (C/A & P (Y)) are at 1575.42MHz(L1) and 1227.6MHz(L2) with a bandwidth of ~20.46MHz at each frequency. | + | * For surveying accuracy, the signals of interest (C/A & P (Y)) are at 1575.42MHz(L1) and 1227.6MHz(L2) with a bandwidth of ~20.46MHz at each frequency. |
* For military accuracy, you have to add the restricted decrypting hardware on top of the surveying requirements. | * For military accuracy, you have to add the restricted decrypting hardware on top of the surveying requirements. | ||
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* http://gpsinformation.net/ | * http://gpsinformation.net/ | ||
| − | * A decent introduction to GPS, and even better, SDR implementations thereof, is | + | * A decent introduction to GPS, and even better, SDR implementations thereof, is "Fundamentals of Global Positioning System Receivers: A software approach", by James Bao-Yen Tsui (ISBN 0-471-38154-3). |
* http://gpstrackit.com/blog/ | * http://gpstrackit.com/blog/ | ||
* A regularly updated blog on the applications of GPS and GIS technology | * A regularly updated blog on the applications of GPS and GIS technology | ||
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* http://www.glonass-ianc.rsa.ru/pls/htmldb/f?p=202:1:12061333542270124939 The Russians added needless complications when they selected a silly time-scale for their system and decided to share the spreading codes between satellites. GLONASS also consumes a lot more bandwidth. However, this would be an excellent demonstration of an SDR's adaptability, since a working software GPS receiver has all the necessary components that a GLONASS receiver requires. One just rearranges them differently. GALILEO falls into the same category. | * http://www.glonass-ianc.rsa.ru/pls/htmldb/f?p=202:1:12061333542270124939 The Russians added needless complications when they selected a silly time-scale for their system and decided to share the spreading codes between satellites. GLONASS also consumes a lot more bandwidth. However, this would be an excellent demonstration of an SDR's adaptability, since a working software GPS receiver has all the necessary components that a GLONASS receiver requires. One just rearranges them differently. GALILEO falls into the same category. | ||
| − | === Q&A === | + | === Q&A === |
'''Q:''' What about DGPS for GPS positioning accuracy improvement? | '''Q:''' What about DGPS for GPS positioning accuracy improvement? | ||
