Dual Antenna GPS Receiver for Satellites

• Feature

  ･ QZSS and GPS receivable

  
  

  ･ Lower cost using COTS hardware

  
  

  ･ Digital synthesis of dual channel antenna input signal

  
  

  ･ Software processing by CPU and FPGA with the flexibility to meet individual
  needs.

  
  

  ･ Positioning of the spacecraft regardless of the attitude by dual channel antenna

  
  

  ･ The maximum length of cable is1.5m

  
  

  ･ GPS-R(1PC)/GPS-A(2PC)

  
  

  ･ ITAR free

  
  

  ･ RoHS nonconformity

  
  

  ･ Made in Japan

  
  
• Specification

  GPS-R / Supply voltage:

  5 V

  GPS-R / Telemetry, Command Interface:

  Sirial I/F (TIA/EIA-422 ITU-T V.11)

  GPS-R / Vibration:

  Random : 25.72 Grms (20 to 2000 Hz)

  GPS-R / Time to fix:

  < 15 min (cold start), < 1 min(warm start)

  GPS-R / Rigidity (first natural frequency):

  300 Hz

  GPS-R / Radiation:

  Tolerant to radiation environment of LEO altitude

  GPS-A / Reception frequency:

  1575.42 ± 1.023 MHz

  GPS-A / Gain:

  26 dBi ± 6 dB ( -30 to + 85 °C)

  GPS-A / Output impedance:

  50Ω

  GPS-A / Output VSWR:

  > 2.0

  GPS-A / Power supply voltage:

  DC 4.5 ±0.5 V

  GPS-A / Consumption current:

  12 to 30mA

  GPS-A / Operating temperature range:

  -30 to +85°C

  GPS-A / Storing temperature range:

  -40 to +100°C

  GPS-R / Number of Channels:

  16 ch

  GPS-R / Number of antennas:

  2

  GPS-R / GPS Signal:

  L1 C/A (1575.42 ± 1.023 MHz)

  GPS-R / Positioning accuracy:

  < 3 m

  GPS-R / Temperature Range:

  -20 to +60°C(Operation), -50 to +70°C(Non-operation)

  GPS-R / Dimensions:

  107 x 131 x 31 mm(Receiver), 44 x 51 x 15 mm(Antenna)
  (flange and screw not included)

  GPS-R / Sensitivity:

  < -130 dBm (at anntena terminal)

  GPS-R / Power Consumption:

  < 2.5 W (except antenna)

  GPS-R / Mass:

  < 500 g

• Flight Heritage
  1. Satellite
  2. Year
  3. Developer
  4. Inclination (deg)
  5. Altitude (km)

  Satellite: ISS (Planned)

  Year: 2016

  Developer: JAXA

  Inclination (deg):

  Altitude (km):

• Documents

  ･Dual Antenna GPS Receiver for Satellite