
SiRFstarIII is a range of
high sensitivity GPS microcontroller
A microcontroller (MC, uC, or μC) or microcontroller unit (MCU) is a small computer on a single integrated circuit. A microcontroller contains one or more CPUs (processor cores) along with memory and programmable input/output peripherals. Pro ...
chips manufactured by
SiRF Technology. GPS microcontroller chips interpret signals from
GPS satellites and determine the position of the GPS receiver. It was announced in 2004.
Features
SiRFstarIII features:
SiRFstarIII GSC3e/LP & GSC3f/LP Product Overview.
SIRF.com. February 2007, Rev. 1.2
* A 20-channel receiver, which can process the signals of all visible GPS and WAAS
The Wide Area Augmentation System (WAAS) is an air navigation aid developed by the Federal Aviation Administration to augment the Global Positioning System (GPS), with the goal of improving its accuracy, integrity, and availability. Essenti ...
satellites simultaneously.
* Power consumption of 62 mW during continuous operation.
* Assisted GPS
Assisted GNSS (A-GNSS) is a GNSS augmentation system that often significantly improves the startup performance—i.e., time to first fix, time-to-first-fix (TTFF)—of a global navigation satellite system (GNSS). A-GNSS works by providing the nece ...
client capability can reduce TTFF to less than one second.
* Receiver sensitivity of -159 dBm while tracking.
* SBAS (WAAS
The Wide Area Augmentation System (WAAS) is an air navigation aid developed by the Federal Aviation Administration to augment the Global Positioning System (GPS), with the goal of improving its accuracy, integrity, and availability. Essenti ...
, MSAS, EGNOS
The European Geostationary Navigation Overlay Service (EGNOS) is a satellite-based augmentation system (SBAS) developed by the European Space Agency and Eurocontrol on behalf of the European Commission. Currently, it supplements GPS by reporting ...
) support
References
External links
SiRFstarIII product web page
SiRFstarIII
OpenStreetMap
{{Satellite navigation
Microcontrollers
Global Positioning System