Справочник Пользователя для Trimble Outdoors SPSX51

SPSx51 Modular GPS Receivers User Guide     

Specifications     

Measurements

•

Advanced Trimble Maxwell

™

 5 Custom GPS chip

•

High-precision multiple correlator for L1/L2 pseudo-range measurements

•

Unfiltered, unsmoothed pseudo-range measurements for low-noise, low 
multipath error, low-time domain correclation, and high-dynamic response

•

Very low noise carrier phase measurements with <1 mm precision in a 1 Hz 
bandwidth

•

L1/L2 signal-to-noise ratios reported in dB-Hz

•

Proven Trimble low-elevation tracking technology

•

Trimble EVEREST

™

 multipath signal rejection

•

72-channel L1 C/A Code, L1/L2 Full Cycle Carrier. Upgradable to L2C and 
GLONASS L1/L2 Full Cycle Carrier. See 

•

72-channel L1 C/A Code, L1/L2/L2C Full Cycle Carrier (SPS751/SPS851). 
Upgradable to GLONASS L1/L2 Full Cycle Carrier and L5. See 

(SPS851)

•

4-channel SBAS (WAAS, EGNOS, and MSAS corrections)

Code differential GPS 
positioning

1

Horizontal accuracy

Vertical accuracy

1

 Accuracy and reliability may be subject to anomalies such as multipath, obstructions, satellite geometry, and 

atmospheric conditions. Always follow recommended practices.

±(0.25 m + 1 ppm) RMS, ± (0.8 ft + 1 ppm) RMS

±(0.50 m + 1 ppm) RMS, ± (1.6 ft + 1 ppm) RMS

SBAS (WAAS/EGNOS/MSAS)

Horizontal accuracy

2

Vertical accuracy

2

2

 Depends on WAAS, EGNOS, and MSAS system performance.

Typically <1 m (3.3 ft)

Typically <5 m (16.4 ft)

OmniSTAR positioning

VBS service accuracy

XP service accuracy

HP service accuracy

Horizontal <1 m (3.3 ft)

Horizontal 0.2 m (0.66 ft), Vertical 0.3 m (1.0 ft)

Horizontal 0.1 m (0.33 ft), Vertical 0.15 m (0.5 ft)

Location RTK positioning

Horizontal accuracy

Vertical accuracy

±(0.07 m + 1 ppm) RMS, ± (0.23 ft +1 ppm) RMS

±(0.07 m + 1 ppm) RMS, ± (0.23 ft +1 ppm) RMS (SPS551)

±(0.02 m + 1 ppm) RMS, ± (0.07 ft +1 ppm) RMS (SPS651)

RTK positioning

Horizontal accuracy

Vertical accuracy

±(10 mm + 1 ppm) RMS, ± (0.032 ft +1 ppm) RMS (SPS751/SPS851)

±(20 mm + 1 ppm) RMS, ± (0.065 ft +1 ppm) RMS (SPS751/SPS851)

Heading accuracy with 
additional SPS551, SPS551H, 
SPS751, or SPS851 

0.05° RMS (10 m antenna separation) 

Does not require shore-based corrections for heading solution 

Initialization time

Regular RTK operation 

with base station

RTK operation with 

Scalable GPS 
infrastructure

Initialization reliability

3

3

 May be affected by atmospheric conditions, signal multipath, and satellite geometry. Initialization reliability is 

continuously monitored to ensure highest quality.

Single/Multi-base minimum 10 sec + 0.5 times baseline length in km, <30 km

Typically, <30 seconds anywhere within coverage area (SPS751 Max and SPS851 
only).

Typically >99.9%