Working Frequency: | Narrowband interference immunity: |
BDS B3： | 1268.52 MHz 10.23MHz | The anti-narrowband interference of B3 frequency point shall not be less than 60dB |
Dynamic measuring range | Positioning time |
Velocity: | ≤100m/s | Cold Start Time: | ≤ 60s (C/A code, P code)(1σ) |
Acceleration: | ≤1g | Recapture Time: | ≤ 2s (loss of lock time is not more than 30s) |
Measurement accuracy |
Single-point accuracy: | Horizontal 4m (1σ), vertical 6m (1σ), speed accuracy 0.1m/s (1σ) |
Differential Accuracy: | Horizontal 1m (1σ), vertical 1m (1σ), velocity accuracy 0.05m/s (1σ) |
Data output frequency |
Second Pulse: Frequency: | 1Hz； Accuracy: 20ns (1σ) | The update rate of satellite navigation information is 10Hz |
On-board equipment |
Power supply interface: | One power supply input interface: input voltage 5V±0.5V |
PPS Second Pulse Interface: | 1 PPS second pulse output interface, output RS422 PPS information |
Receiving Differential Information: | 1 receives ground differential information, two-way RS422, baud rate 115200bps |
CAN bus interface: | A CAN bus interface, baud rate of 500kbps, bidirectional CAN bus output satellite navigation information to the flight control computer |
Ground equipment |
Power supply interface: | One power supply input interface: input voltage 9V-32V |
PPS Second Pulse Interface: | 1 PPS second pulse output interface, output RS422 PPS information |
To send a differential message: | 1 transmits ground differential information, RS232_ A in both directions, and the baud rate is 115200bps |
| Send reference information to a terrestrial computer: | 1 transmits reference information, bidirectional RS232_ B, baud rate 115200bps |