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.

Request a Quote/Trial

Chat With：

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

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： -145dBm
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

Applications

Being widely used in intelligent driving, driver license testing, surveying and mapping, engineering machinery, unmanned systems (UAVs, UAS etc.) and many other fields.