Satellite navigation systems are widely used to provide positioning and timing information for both civilian and military applications. However, due to the low signal strength of long-distance satellite transmissions, these systems are inherently vulnerable to jamming attacks.
The FDE5004 Series is an anti-jamming GNSS receiver that employs adaptive nulling antenna technology. It features a four-element antenna array architecture and supports the GPS L1, GLONASS L1, and Galileo E1 frequency bands. Designed for operation in electromagnetically contested environments, the FDE5004 Series is particularly well suited for military applications where resistance to interference is critical.
After receiving satellite signals, the receiver effectively suppresses a wide range of wideband and narrowband interference sources, including harmonics, frequency sweep signals, pulsed interference, white noise, as well as signals employing frequency modulation (FM), amplitude modulation (AM), and pulse modulation (PM).
| FDE5004 Receiver | FDA5004 Antenna | FDA5064 Antenna | |
|---|---|---|---|
| Receiving frequency [MHz] | 1559 ~ 1610MHz | 1559 ~ 1610MHz | 1575.42±1.023MHz, 1561.098±2.046MHz |
| Ant-jamming frequency [MHz] | 1575 ~ 1601MHz | 1575 ~ 1601MHz | 1575.42±1.023MHz, 1561.098±2.046MHz |
| Anti-jamming ability [dB] | single jam ≥ 100 dB, triple jam ≥ 85 dB | single jam ≥ 100 dB, triple jam ≥ 85 dB | single jam ≥ 85 dB, triple jam ≥ 75 dB |
| Gain [dB] | ≥ 3 dB (elevation angle 90°) | ≥ 3 dB (elevation angle 90°) | |
| Signal output power [dBm] | ≤ -55 dBm | ≤ -55 dBm | ≤ -70±5 dBm |
| Impedance [Ω] | 50 Ω | 50 Ω | 50 Ω |
| Cold start [s] | ≤ 40s | N/A | N/A |
| Positioning accuracy [m] | ≤ 10m(1σ) | N/A | N/A |
| Speed survey accuracy [m/s] | ≤ 0.2m/s horizontal / ≤ 0.3m/s elevation |
N/A | N/A |
| Max speed [m/s] | ≤ 1100m/s | N/A | N/A |
| Max acceleration [g] | ≤ 15g | N/A | N/A |
| Jerk [g/s] | ≤ 3g/s | N/A | N/A |
| Isolation [dB] | ≥ 15 dB | ≥ 15 dB | |
| LNA gain [dB] | 20.0±2 dB | 20.0±2 dB | |
| VSWR | ≤ 2.0 | ≤ 2.0 | |
| Noise figure [dB] | ≤ 2.0dB | ≤ 2.0dB | |
| OIP3 [dBm] | ≥ 22dBm | ≥ 22dBm | |
| Out of band rejection | ≥ 45dBc @ fc±100MHz | ≥ 45dBc @ fc±100MHz | |
| Input voltage [V] | 18 ~ 36V | 18 ~ 36V | 4.5 ~ 5.5V |
| Power consumption [W] | ≤ 15W | ≤ 15W | ≤ 6.5W |
| Weight [g] | < 500 g | < 500 g | < 200 g |
| Temperature [°C] | Operating temperature: -40°C ~ +60°C |
Operating temperature: -40°C ~ +60°C |
Operating temperature: -40°C ~ +60°C |
| Storage temperature: -55°C ~ +65°C |
Storage temperature: -55°C ~ +65°C |
Storage temperature: -55°C ~ +65°C |
|
| Size [mm] | 132 x 132 x 22 | 132 x 132 x 22 | 65 x 65 x 19.5 |
