Novatel GPStation, Руководство пользователя, Страница: 10 / 38

1 – Introduction
2 GPStation™ User Manual
built, proprietary correlator chip combined with a high performance, 32-bit CPU is capable of generating satellite code
and carrier phase data at a rate of up to 20 times per second, and computing up to 10 position solutions per second -
among the highest rates found in the industry. Exceptional acquisition and re-acquisition times are also a standard feature
of this high-performance receiver.
The GPStation is available in two models whose features are summarized in Table 1:
Table 1 Feature Summary - GPStation Models
General GPSTN GPSTNM
12 parallel tracking channels
✓ ✓
Narrow Correlator spacing
✓ ✓
2 configurable RS-232C serial data ports
✓ ✓
Fast re-acquisition
✓ ✓
Field-programmable for firmware upgrades
✓ ✓
Multipath Elimination Technology N/A
✓
High-stability OCXO
✓ ✓
Data Logging Rates
Computed Data: Position, speed, direction, & clock offset @ 10 / sec
✓ ✓
Measured Data: Pseudorange & carrier phase @ 20 / sec
✓ ✓
Output Data Log Formats
NovAtel-proprietary ASCII and binary
✓ ✓
NMEA 0183 Ver. 2.0
✓ ✓
RINEX Ver. 2
✓ ✓
RTCM SC-104 Rel. 2.0 Types: 1, 3, 9, 16, 59N
✓ ✓
RTCA/DO-217 Types: 1
✓ ✓
Positioning Modes of Operation
Single point
✓ ✓
Waypoint navigation
✓ ✓
Differential (using pseudorange corrections)
✓ ✓
Receiver Control
Clock drift correction
✓ ✓
Ability to save receiver configuration settings, & almanac
✓ ✓
Reset (hardware or firmware activated)
✓ ✓
Serial port control
✓ ✓
Datum (table or user-definable)
✓ ✓
Magnetic variation correction
✓ ✓
Undulation (table or user-definable)
✓ ✓
Satellite elevation cutoff control
✓ ✓
Position, height & velocity constraints
✓ ✓
Satellite lockout control
✓ ✓
Satellite health control
✓ ✓
Strobes
Mark input (position & time)
✓ ✓
1 PPS timing output (for GPS time synchronization)
✓ ✓
Measurements strobe
✓ ✓
User-defined frequency output pulse train
✓ ✓
Solution status output
✓ ✓
The high-stability Oven-Controlled Crystal Oscillator (OCXO) ensures highly accurate pseudorange and carrier
measurements for DGPS, real-time kinematic (with an RT-20 enabled remote station), and post-processing applications.