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GNSS reference station - is designed for the continuous forming of differential corrections to the pseudorange, which are measured for satellites GLONASS, GPS. Correction information is formed and transmitted by beacon and/or by a channel communications (VHF, AIS, Ethernet) for satellites above the specified elevation.
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DGNSS reference station
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Functions and features
- Receive signals from satellites:
- GLONASS frequency band L1 (CT-code, numbers lettered frequencies from minus 7 to plus 6);
- GPS in the frequency range of L1 (C / A code);
- SBAS in the frequency band L1.
- Measurement pseudorange all of the received signals of GLONASS / GPS, synchronization of timing measurements to scale the system GLONASS / GPS;
- Calculation of the differential corrections and the formation of correction information for navigation signals:
- for ST-code satellites GLONASS;
- for C/A-code satellites GPS.
- Reception, storage and updating of almanacs satellites
- Autonomous Integrity Monitoring (RAIM) with the functions:
- detection of failure measurements;
- avoid of failure measurement.
- Communicate with external users via the RS-232 in accordance with the communications protocol NMEA0183 (IEC1162), RTCM SC-104, RSIM 1.1. (including delivery of data for documentation and archiving).
- Framing KI:
- message types 1, 3, 5, 6, 7, 9, 16, 18, 19, 31, 32, 33, 34, 35, 36, 37 in accordance with the standard RTCM 10402.3 - Amendment 1;
- message types 1001,1002,1005-1010, 1013, 1019, 1020, in accordance with standard RTCM 10403.1 - Amendment 1-4.
- Converting frame of differential corrections into MSK-modulated signal and transmitting it by the coaxial line to the transmitter beacon.
- Inclusion in the RTCM-messages types 1, 31 and / or 9, 34 at unsatisfactory mode of the reference station if a warning is received from the station of integral control
- Automatic monitoring of the functioning of the reference station.
- Determination of the origin of the phase center of the antenna on a series of observations.
Specifications and operating conditions
| Parameter |
Value |
| The number of parallel channels of the receiving of the satellites GPS/GLONASS/SBAS |
24/60 |
| Coordinate systems |
ПЗ-90.02, WGS-84 |
| Temp of fix, Hz |
1 |
Accuracy:
- RMC of pseudorange, m
- RMC of velocity, m/s |
0,3
0,04
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| Display type |
LCD, 2 lines of 16 symbols |
| Frequency range of MSK-modulator, kHz |
from 283,5 to 325,0 |
| Frequency setting resolution MSK modulator, kHz |
0,5 |
| Information rate, bit/s |
100, 200 |
| The number of external serial port RS-232 |
6 |
| Number of channels of Ethernet |
3 |
| Protocols of the Ethernet data |
RTCM2.3, RTCM3.1, BINR |
| Setup and control via WEB-interface able |
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| Supply DC, V |
from 9 to 27 |
| Power no more, Wt |
11 |
| Dimension, mm*mm*mm |
252*60*111 |
| Operation temperature, °С |
from 0 to +50 |
| Storage temperature, °С |
from –50 to +70 |
| Operation humidity at temperature 25 °С, % |
98 |
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