CAST Navigation CRPA (controlled reception pattern antenna) simulators provide coherent, and repeatable GNSS RF signal wavefronts for phased-array antenna systems used for tactical positioning and navigation. A complete set of signals is generated for each antenna element, with GNSS and interference waveforms generated separately and spatially offset to reflect real-life phase differences in signal reception.
The versatile simulators are fully customizable and can simulate both static and dynamic motion profiles, tailored to a wide range of airborne, orbital, ground-based or marine platforms. They can be configured to deliver a full constellation of GNSS satellites, with up to 16 satellites in view per constellation signal type and composite signal RF output element.
A range of other parameters can also be controlled, including location, jamming and spoofing, atmospheric delays, RF output power levels, multipath, and more.
| Output Signal Types | GPS: L1, L2, L2C, L5, C/A-Code, P-Code, Y-Code, SAASM, M-Code AES, M-Code MNSA, BeiDou: BDS-B1L, BDS-B1C, GLONASS: L1, L2 SBAS: WAAS, EGNOS, MSAS, GAGAN |
| Signal Output Levels (Nominal) | GPS: -160 dBW GLONASS: -161 dBW Beidou: -163 dBW SBAS: -160 dBW |
| Signal Accuracy | Pseudorange: 1 mm Pseudorange Rate: 1 mm/s Delta Pseudorange: 1 mm Interchannel Bias: < 1 mm Uncontrolled Bias: < 1 mm Bias Repeatability (initial): < 1 mm Bias Stability (operational): < 1 mm |
| Signal Level Control | Range: ± 30 dB Resolution: 0.1 dB |
| Signal Quality | Spurious: < -45 dBc Harmonics: < -50 dBc Reference Oscillator: 10MHz OCXO Frequency Stability: 3×10-9per day |
