TOP - GNSS/GPS Receivers - PYXIS
PYXIS NAUTICA        
Next Generation Precision Orbit Determination & Occultation gNSS Receivers

The Pyxis Line of spaceborne GNSS receivers is the next generation of GNSS receivers based on the highly successful IGOR receiver. The Pyxis incorporates the lessons learned from the IGOR design and implements a number of improvements and upgrades made possible by recent technology developments.

The Pyxis line is based on the BRE440 CPU and a new BRE developed GNSS ASIC/FPGA. Logic miniaturazation and processing improvements allow reduction of the receiver size by at least a factor of 2 while increasing radiation and electrical performance. A new RF front-end and digital section improve signal-to-noise ratio as well as sampling resolution. The addition of L2C and L5 frequencies and eventually Galilleo frequencies provide increased Occultation Data and improved PVT resolution. Software improvements include the addition of a customer API for custom code development and the addition of GNSS Attitude determination ability.

The Pyxis receiver is available as a stand-alone receiver or 3U cPCI board LEO Precision Orbit Determination receiver (Pyxis-POD), as a Radio Occultation and POD GNSS Receiver (Pyxis-RO), and as a GEO Precision Orbit Determination receiver (Pyxis-GEO). The first in the lineup of Pyxis receivers will be available as engineering unit version at the end of 2008.

         
 
Pyxis-POD   Pyxis-RO   Pyxis-GEO
  • BRE440 Processor
  • < 2.5kg
  • < 25W Peak, 20W Nominal [28 VDC +/-6V]
  • SEL Immune & SEU Mitigated Design
  • Attitude Determination via GNSS (Option)
  • 1 to 4 Antenna Inputs
  • 16 to 64 Channel GNSS Receiver
  • Position Accuracy Sub cm
  • Position Velocity Sub mm
 
  • BRE440 Processor
  • < 4.5kg
  • < 35W Peak, 25W Nominal [28 VDC +/-6V]
  • SEL Immune & SEU Mitigated Design
  • 4 to 6 Antenna Inputs
  • 48 to 128 Channel GNSS Receiver
  • Software for Open/Closed Loop Occultation
  • Tracking
 
  • BRE440 Processor
  • < 2.5kg
  • < 25W Peak, 20W Nominal [28 VDC +/-6V]
  • SEL Immune & SEU Mitigated Design
  • 1 to 2 Antenna Inputs
  • Software Algorithms for POD at GEO
         
       

Comparison Pyxis (left) to IGOR (right)