CAST Navigation's jamming and interference simulation systems for military navigation and positioning applications support the testing, verification, and integration of both single-element Fixed Reception Pattern Antenna (FRPA) systems as well as multiple-element CRPA-based anti-jamming systems. Based on proprietary FPGA technology, the systems emulate interference conditions and threats that can occur in both urban and hostile environments.
Jammers can be assigned an initial speed, altitude, and either a stationary or a dynamic trajectory, and interference signals are precisely controlled to provide realistic signals to systems under test. The jammers provide >130db of interference signal power from nominal GNSS output levels, and scenarios are 100% repeatable to ensure consistent results.
Users can define multiple interference parameters, including output signal waveform types, output power level, jammer signal source location, speed, heading and motion. Up to 8 separate antenna output elements can be individually programmed, generating interference signals from different locations and with different power levels.
Specifications:
| Output Frequency Bands | L1, L2, L5 |
| Signal Level | Jammer Signal Range: 173dB Jammer Signal Level: -203dBW to -30dBW |
| Jammer Vehicle Dynamics | Velocity: > 60,000 m/s Acceleration: ± 150,000 m/s2 Jerk: ± 150,000 m/s3 |
| 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 |
| Modes of Operation | Pulsed CW: Rate: 0.01Hz-100KHz Swept CW: Rate: 0.01Hz-100KHz, Duty Cycle 1%-99% Swept CW: Sweep Types: Sinusoid, Triangle, Ramp Up/Down Swept CW: Bandwidth: 0.01Hz – 24 MHz FM Noise: Bandwidth: 0.00Hz – 20MHz WB Noise: Bandwidth: 24MHz Binary Phase Shift Key: Bandwidth 24MHz |
