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Alita Baseband ASIC

High Precision GNSS ASIC

It's a harsh world down here. You've got to be willing to do what it takes.

Alita GNSS Baseband ASIC

High-precision GNSS baseband ASIC chip Alita is launched based on our extensive applications of mature FPGA solutions. Alita can track up to 72 satellites simultaneously and support BDS-3 signals. Meanwhile, its channels, sensitivity and anti-jamming performance have achieved all-round development and improvement. Integrated multi-sensor fusion interface supports 4-channel frequency-variable output and synchronization signal of the EVENT input. The synchronization accuracy is 20ns, and it can be precisely synchronized with other sensors such as LiDAR, INS and camera.

Achieve All-round Development and Improvement in
Channels, Sensitivity and Anti-jamming Performance

Track up to 72 satellites simultaneously and support BDS-3 signals

Core Technology

Core Technology

1)Vector tracking loop. Achieve better performance in anti-jamming and anti-spoofing with multi-satellite multi-frequency joint tracking.
2)Multi-correlator based multipath suppression technique. Multi-correlator based parallel correlation methods suppress multipath effect where GNSS signal is reflected off buildings in urban environment, and improve the quality of GNSS observation data.
3)Deeply integrated navigation. Support external input inertial navigation information to assist signal tracking, and provide more robust and accurate observation data in harsh environment.
4)Signal quality monitoring. Monitor real-time tracking loop performance, output the accuracy of GNSS observation.

Performance
Channel Number 328
Receivable Signals BDS-2
BDS-3
GPS
GLONASS
Galileo
QZSS
IRNSS
SBAS
B1I、B2I、B3I
B1I、B1C、B3I、B2a、B2b (Reserved)
L1C/A、L1C、L2C、L2P、L5
L1、L2
E1、E5a、E5b
L1C/A、L1C、L2C、L5
L5
L1C/A 
Sensitivity

Capture: -142dBm

Tracking: -148dBm

Recapture Time ≤1s
Dynamic Performance

Velocity: ≤500m/s

Acceleration: ≤4g

Update Rate of Observation Data Up to 100Hz
Accuracy of Observation Data

Carrier phase:≤1mm(1σ)

Pseudo-range: 0.5M code signal: ≤ 0.20m(1σ)

                        1M code signal:≤ 0.16m(1σ)

                        2M code signal: ≤ 0.12m(1σ)

                       10M code signal:≤ 0.09m(1σ)

Timing Accuracy ≤20ns
Communication Interface QSPI (up to 132MHz)
Temperature

Working: -40℃~+85℃

Storage: -55℃~+150℃

Power Consumption 0.8W (Typical)
Signal Interface 12-channel digital IF signal input, supporting I channel and I/Q dual-channel, 2-bit/4-bit quantization

 

Application Range

Application Range

Being widely used in intelligent driving, driver license testing, surveying and mapping, engineering machinery, UAV and many other fields.

  • Intelligent Driving

    Intelligent Driving

  • Driver License Testing

    Driver License Testing

  • Surveying And Mapping

    Surveying And Mapping

  • Engineering Machinery

    Engineering Machinery

  • UAV

    UAV

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