Description:

The receiving and measuring device is used for measurement of current values of navigation parameters and current time according to signals from SNS GLONASS (L1-band, SТ-code) and GPS NAVSTAR (L1-band, С/А- code) in any point of the globe at any time regardless of weather conditions.

Functions:

The receiving and measuring device provides operation on the basis of SNS GLONASS signals or GPS NAVSTAR signals, or on the basis of both systems signals simultaneously, and represents a 24-channel digital receiver able to receive 24 navigation signals of these systems simultaneously. The receiver uses sharp channel separation of GPS NAVSTAR and SNS GLONASS to secure advanced jam-protection. Frequency plan of GLONASS implemented in the unit corresponds to the 2 stage of alterations according to «Control interface document ...» with possibility of transfer to the 3 stage since 2005 by means of modification of the receiving and measuring device software. The receiving and measuring device includes built-in signal simulator providing off-line test and integrity control of the receiver.

The receiver provides a search and tracking of SNS GLONASS and GPS NAVSTAR signals, automatic continuous on-line scaledetermination and delivery of the following information to consumers:

-  Object location coordinates in geodesic and geocentric coordinate systems;

-  Altitudes relative to the reference ellipsoid and relative to the Earth centre;

-  Three components of the relative airspeed vector in the geodesic and geocentric coordinate systems;

-  Current time in the time scale  UTC (or local time in case of correction introduction);

-  Root-mean-square value of the predicted accuracy of location coordinates.

Features:

• Providing navigation on the basis of SNS GLONASS/GPS NAVSTAR/SBAS signals;
• Reception of differential corrections in accordance with RTCM SC 104 v2.2 recommendations;
• Generation of time marker 1PPS, synchronized with UTC scale and its delivery to consumer via RS-485/RS-422В interface;
• Saving the user's setting parameters, almanac, and the last observed coordinates after power-down;
• Communication with user's equipment via RS-232Е interface.

Data communications protocols:

• NMEA0183(МЭК1162) - reception and transmission of navigation information;
• BINR - equipment operating modes control, delivery of navigation data;
• RTCM SC 104 v2.2 - reception and transmission of differential corrections.

Specification:

• 24 universal parallel channels:
  • GLONASS: L1, СТ- code
  • GPS: L1, С/А-code

• Algorithm a choice of channels of reception:  All-in-view
• Deep division of channels GPS NAVSTAR and SNS GLONASS
• Accuracy of definition of coordinate / height in an autonomous mode:
  • GNSS             - 15 m,
  • GLONASS       - 15 m,
  • GPS                - 10 m;

• Accuracy of definition of coordinate / height in a differential mode:
  • GNSS             - 1,5/2,5 m
  • GLONASS      - 1,5/2,5 m
  • GPS                - 1,5/2,5 m

• The form of a signal of a label of time: a pulse signal 1Hz;
• Time of initial definition at "cold" / "heat" / "hot" start, no more than 90s/50s/15s.
• The built - in simulator of signals providing the independent control of the receiver;
• RAIM‑control;
• Data output rate the navigating information - 1с and 0.1с.
• Systems of coordinates: WGS-84, ПЗ-90, INDIAN, EUROPEAN 1950, NORTH AMERICAN 1983

Servicing characteristics:

• operating ambient temperature: from -55 up to +75°C
• operating raised humidity : 98 % (40°С)
• Power consumption, no more - 2.2 Вт
• Supply voltage DC - 3.3В, 5В
• Dimensions: 90х96х15mm
• Weight 125 g

Interface:

• Two ports of input / output RS-232Е.
• Protocols of an exchange: IEC1162 (NMEA0183), BINR, RTCM SC 104 v2.2.
• Speed of an exchange of the information: up to 38400 bits / s.
• Two serial ports RS-485/RS-422B
• PCI Rev.2.1
• 15 additional programmed user ports of an input / output of the data.