Geo-APNT™ Assured Positioning, Navigation and Timing
Posion Accuracy* Con fi gura on (GPS Receiver)
Monitoring
Technical Specifications Data Recording / Logging • Navigation solutions (position, velocity, acceleration, attitude, angular rate, …) • Raw GPS and IMU data (for post processing with RTD-Post) • Full diagnostics External IMU Support Fiber Optic Gyro is standard in Advanced con fi gurations. Built-in support for: • Honeywell HG1900, HG1700, HG9900 • Litton LN200 • Other IMU’s available upon request
Di ff eren al Mode Horizontal/Ver cal Accuracy (RMS)
Standalone Mode Horizontal/Ver cal Accuracy (RMS)
• Power/status LEDs • Remote/local status, con fi guration, • event log, software update through web interface Environmental • Temperature in Operation: -40°C to +65°C • Temperature in Storage: -45°C to +85°C • Humidity: 95% RH, non-condensing • Altitude: 35,000 ft • Mechanical (MIL-STD-810G): • Vibration: 7.7 g rms, 20 to 1000 Hz Shock: 20 g, 11 ms Physical • Size: 120 x 100 x 55 mm (4.7 ” x3.9” x 2.2 ” ) • Weight: 0.75 kg (1.7 lbs.) • Mounting: On a plate, 4 through holes
Tac cal (L1 only) Tac cal-RTK (L1/L2) Tac cal-RTK SAASM Advanced (L1/L2) Advanced SAASM
1.5 m / 2.5 m 1.5 m / 2.5 m
-
0.05 m / 0.1.m
1.0 m / 2.0 m
0.05 m / 0.1 m
Dynamic Attitude Accuracy* Con fi gura on (IMU)
Standalone Mode Roll-Pitch / Heading Accuracy (RMS)
Di ff eren al Mode Roll-Pitch / Heading Accuracy (RMS)
Tac cal (internal IMU) Tac cal-RTK Tac cal-RTK SAASM (internal IMU)
±0.2° / ±0.5°
-
Safety and Diagnostics • Internal safety and monitoring • Systems Operational Readiness • Cold Start: 60 s (commercial) • 1 PPS/Time-of-Day: 60 s Power • Input Voltage: 10-30 VDC
±0.2° / ±0.5°
±0.1° / ±0.3°
Advanced Advanced SAASM (external FOG)
±0.05° / ±0.1°
±0.01° / ±0.05°
NOTE: Accuracy must be measured once dynamic alignment is complete * Accuracy is dependent upon GPS satellite system performance, ionospheric condions, GPS blockage, environmental condins, data link and other factors
• Tactical Con fi gurations: 9 W typical, Advanced Con fi gurations: 13 W typical
Geo-APNT IMU Performance (Internal)
Con fi g.
IMU
Parameter
Accelerometer
Gyros
Range
±3g
±150°/sec
Timing Output Signals • PTP grandmaster (IEEE 1588 v2) • Network: NTP server (v3, v4) • DCLS: con fi gurable digital outputs (1PPS, IRIG B002, PPO, ALARM), 3.3V, 50 Ω • RS232: x1 NMEA ToD message (GPZDA, GPRMC) • Frequency: 10 MHz, sine, 0 dBm in 50 Ω
Bias Stability (in-run) Random walk Bias Stability (in-run) Random walk Range Bias Stability (in-run) Random walk Range
< 0.1 mg
3°/hr.
MEMS 1
0.04 (m/sec)/ √ hr.
0. 2/√ hr. ±200°/sec
±3g
Tactical, Tactical-RTK, Tactical-RTK SAASM
MEMS 2
< 0.1 mg
2.2°/hr.
0.04 (m/sec)/ √ hr.
0.09/ √ hr. ±450°/sec
Management
±4g , ±10g < 0.05 mg
MEMS High- Performance
• 10/100bT LAN interface • Web User Interface (status, con fi guration, log, SW update) • SNMP
0.8°/hr.
0.02 (m/sec)/ √ hr.
0.06/ √ hr.
Time and Frequency Performance Performance
Oscillator Level I
Oscillator Level II
Geo-APNT IMU Performance (External)*
Time-base Performance
24 hours / One year
24 hours / One year 0.5x10 -12 /0.5x10 -10
Con fi gura on
IMU
Parameter
Accelerometer
Gyroscope ±490°/sec
Range
±10g
Rela ve Frequency Varia on with Aging (based on 30-day aging) Rela ve Frequency Varia on with Temperature (-40°C +75°C) Phase Noise on 10 Mhz. Output @10 Hz @100 Hz @1 kHz Other oscillators available upon request
Fiber Op c Gyro Ring Laser Gyro
Advanced, Advanced SAASM Advanced, Advanced SAASM
1x10 -12 /1x10 -10 ±5x10 -11
Bias Stability (in-run) Random walk Bias Stability (in-run) Random walk Range
< 7.5 mg
1°/hr.
0.07 (m/sec)/ √ hr.
0.012/ √ hr. ±1074°/sec
±2x10 -11
±37g
-120dBc/Hz -140dBc/Hz -145dBc/Hz
-120dBc/Hz -145dBc/Hz -150dBc/Hz
< 1 mg
1°/hr.
0.001 (m/sec)/ √ hr.
0.125/ √ hr.
* Built-in Support for Honeywell HG1900, HG1700, HG9900, Litton LN200. Other IMU’s available upon request.
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