[Product Introduction and Use]
This satellite user receiver is a missile-borne high-dynamic satellite user terminal developed for a certain aerospace institute. It consists of a conformal passive antenna and a satellite receiver.
The satellite user terminal can dynamically receive BDS-B1/B3, GPS-L1 frequency satellite positioning signals, and provide the carrier's real-time position and speed information to the security control computer module through the RS422 serial port.
The satellite receiver supports high-dynamic missile-borne scenarios of 2000m/s. The antenna adopts a high-temperature resistant design and can still receive satellite signals normally when the missile is flying at high speed.
User terminal and matching antenna
【Main technical parameters】
Receiving frequency | GPS L1, BeiDou B1, BeiDou B3 | Receiving frequency | GPS L1, Beidou B1, Beidou B3 |
Polarization mode | Right-hand circular polarization | Number of receiving channels | No less than 36 |
Antenna gain | Vertex gain ≥ 3dbi | positioning accuracy | (Dynamic scene) |
Elevation gain | ≥ -4dbi | level | Better than 10m; (1σ, PDOP<3) |
Direction diagram | Horizontal omnidirectional, vertical hemispherical | vertical | Better than 10m; (1σ, PDOP<3) |
Axis Ratio | ≤ 3dB | Speed measurement accuracy | ≤ 0.1m/s（1σ，PDOP ≤ 3） |
Standing Wave | ≤ 2.0dB | Data update rate | 1～10Hz adjustable |
Operating temperature | -40℃～ 200℃ | Dynamic performance | Speed: not less than 2000m/s Acceleration: not less than 20g; |
Antenna Isolation | ≥ 25dB | Overload resistance | ***Launching overload ≥ 20g; ***Flight overload ≥ 8g; |
structure size | No larger than 115mm*100mm*21mm
(excluding SMA connector) | Positioning time | Cold start time: ≤ 60s; hot start time: ≤ 10s;
lock relocation time: ≤ 2s; |
interface | SMA-KFD Connectors | Receiving sensitivity | Not less than -133dbm |
【Main features】
1. The satellite receiving antenna is designed with high temperature resistant materials and can work normally at a temperature of 360 degrees;
2. The satellite receiver supports high dynamics and can support a speed of no less than 2000m/s and an acceleration of no less than 20g.