Spirent Multi-frequency, multi-GNSS simulator PNT Xe
- Edit and save time and date, Enable/disable atmospheric modelling, Enable/disable multipath
- Interactive power control of each individual constellation
- Load real constellation almanacs
- Choose Static position, simple motion, ‘racetrack motion’ or Google Maps® matched trajectories via the SimROUTE™ tool
- RX Antenna Level Patterns editing, Simulate leap second events
- Flexibly allocate available hardware channels across licenced constellations
- Display simulation parameters, Display sky plot
- Selected remote control capability via Ethernet connection
Spirent Multi-frequency, multi-GNSS simulator PNT Xe
Key features include:
- Edit and save time and date
- Enable/disable atmospheric modelling
- Enable/disable multipath
- Interactive power control of each individual constellation
- Load real constellation almanacs
- Choose Static position, simple motion, ‘racetrack motion’ or Google Maps® matched trajectories via the SimROUTE™ tool
- RX Antenna Level Patterns editing
- Simulate leap second events
- Flexibly allocate available hardware channels across licenced constellations
- Display simulation parameters
- Display sky plot
- Selected remote control capability via Ethernet connection
GNSS Constellations and Supported Signals
Table 1 GNSS Signals Supported
| GPS | L1 | C/A | Legacy | -130.0 dBm | |
| P | Legacy | -133.0 dBm | |||
| L1c Pilot code | CNAV-2 | -128.25 dBm | |||
| L1c Data code | CNAV-2 | -133.0 dBm | |||
| M Noise | – | -128.5dBm | AES-M requires SimMCODE | ||
| L2 | L2c or C/A | CNAV | -136.0 dBm | ||
| P | Legacy | -136.0 dBm | |||
| M Noise | – | -132.5dBm | AES-M requires SimMCODE | ||
| L5 | I, Q | CNAV | -127.9 dBm | ||
| Galileo | E1 | E1-B, E1-C(50/50 power sharing) | I/NAV | -128.0 dBm | OS GalileoExcludes SOL support |
| E5ab | E5a(I+Q) and E5b(I+Q) (50/50 power sharing) | F/NAV, I/NAV | -122.0 dBm | OS Galileo – Supported FOC Galileo – Supported | |
| E6 | E6-B, E6C(50/50 power sharing) | HAS | -128.0 dBm | ||
| GLONASS | F1 | C/A | Public | -131 dBm | |
| P | – | -131 dBm | |||
| F2 | C/A | Public | -137 dBm | ||
| P | – | -137 dBm | |||
| L1 | CDMA | L1OC | -128.5 dBm | ||
| L2 | CDMA | L2OCp | -128.5 dBm | ||
| L3 | CDMA | L3OC | -128.5 dBm | ||
| BeiDou | B1 | B1I | D1, D2 | -133 dBm | D2 does not include differential corrections or Iono grid |
| B1 | B1C | B-CNAV1 | -130 dBm | ||
| B2 | B2I | D1, D2 | -133 dBm | ||
| B2 | B2A | B-CNAV2 | -127 dBm | ||
| B2 | B2B | B-CNAV3,PPP-B2b_I | -130 dBm | ||
| B3 | B3I | D1, D2 | -133 dBm | ||
| QZSS | L1 | C/A, C/B | QZ-Legacy | -128.5 dBm | |
| S | SLAS | -131 dBm | |||
| L1c Data + Pilot | QZ-CNAV-2 | -127 dBm | |||
| L2 | L2c | QZ-CNAV | -130 dBm | ||
| L5 | I + Q | QZ-CNAV | -124.9 dBm | ||
| S | -127 dBm | ||||
| L6 | D+E | CLAS, CLAS-E (MADOCA) | -126.82 dBm2 | ||
| IRNSS | L1 | SPS | L1 | -130 dBm | |
| L5 | SPS | L5 | -130 dBm | ||
| SBAS3 | L1 | C/A | Data | -130 dBm | |
| L5 | L5-I | DFMC Data | -127.9 d |
System Performance
Table 2 Performance Levels for PNT Xe
| Parameter | Description | Units | Notes |
| RF Signal Level | Carrier Level Control Maximum | +15 dB | |
| Minimum | -40 dB | ||
| Resolution | 0.1 dB | ||
| Linearity +15 dB to -30 dB | <0.10 dB | ||
| -30.1 dB to -40 dB | <0.20 dB | ||
| Absolute Accuracy Run to Run Repeatability | ±0.5 dB ±0.1 dB | ||
| Iteration Rates | Supporte Simulation Iteration Rates (SIR) | 10, 100Hz | |
| Hardware update rate6 6 The maximum rate at which any value can change is limited by SIR. | 100Hz | ||
| Bulk logging update rate | 100Hz | ||
| Latency (remote data to RF) | 4 x SIR | ||
| Limit of Signal Dynamics 77 Note that the signal dynamic limits are dependent on the SIR and HUR. | Relative Velocity | ±20000 m/s | |
| Relative Acceleration | ±1800 m/s2 | ||
| Relative Jerk | ±15000 m/s3 | ||
| Angular Rates (at 1.5m lever arm)(indicative) (at 0.05m lever arm) | >2p rad/s >10p rad/s | ||
| Signal Accuracy | Pseudorange Accuracy | 5 mm RMS | |
| Pseudorange Bias | 0 mm RMS | ||
| 1PPS to RF Alignment | < ±2ns | ||
| Inter Frequency Alignment | < ±250ps (±75mm) | ||
| Spectral Purity | Harmonics | < -40dBc | |
| In-band Spurious (highest limit applies) | < -182dBW | ||
| Phase Noise (single sideband) | <0.02 Rad RMS | ||
| Signal Stability | Internal 10.00MHz OCX Oscillator (after warm up) | ± 5 x 10-10 per day | |
| Static Multipath Channels | Fixed path-length delay per path | 0 to 1245m | |
| Resolution (approx.) | 2.4m | ||
| Scenario Duration | The maximum duration of a single scenario | 24 days |
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