Javad DELTAGNSS Receiver Operator's Manual page 80

Specifications
Receiver Specifications
General Details
Base or Rover
Autonomous
Static, Fast Static
Kinematic, RTK
RTK (OTF)
DGPS
Real time attitude accuracy (for
DELTAD and DELTAQ only)
Cold Start
Warm Start
Reacquisition
1. RTK update rate means the position update rate of the rover working in the "extrapolation" mode. In the
extrapolation mode you may use the base with measurements update rate = 1 Hz and run the rover at
100 Hz RTK update rate.
2. In-Band interference usually is caused by harmonics of external transmitters (like TV stations) located
close to GPS receiver. Interference decreases SNR and may stop receiver operation completely. Our In-
Band Interference Rejection technique suppresses interference and recovers SNR. Multipath signal
propagation worsens code/phase measurements. Advanced Multipath Reduction technique reduces this
harmful effect.
3. The accuracy estimate is applicable to base lines up to several hundreds of km. But normally RTK
works predictable on base lines up to 50 km.
80
Static, Fast Static
Kinematic (Stop and Go)
RTK (Real-time Kinematic)
DGPS (Differential GPS)
SBAS DGPS
Measuring Accuracy
< 2m
Horizontal: 0.3 cm + 0.5 ppm * base_line_length
Vertical: 0.5 cm + 0.5 ppm * base_line_length
Horizontal: 1 cm + 1 ppm * base_line_length
Vertical: 1.5 cm + 1.5 ppm * base_line_length
Horizontal: 1 cm + 1 ppm * base_line_length
Vertical: 1.5 cm + 1.5 ppm * base_line_length
< 0.25 m Post Processing,
< 0.5 m Real Time
Heading ~ 0.004/L [rad] RMS, where L is the antenna separation in [m
< 35 sec
< 5 sec
< 1 sec
3
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