Leading GNSS Solution Provider
[ION GNSS+ 2023] Deep Learning in GNSS Orbit and Clock Extended Predictions to Improve the Accuracy and Robustness of Positioning (AG3335 Series)
GNSS Satellite orbit predictions are used to reduce the Time to First Fix (TTFF) of a satellite positioning device.
[ION GNSS+ 2023] Performance Improvement of Wearable GNSS Navigation with Smart Sensor Aiding (AG3335M Series)
Wearable device has been one of the most popular consumer products these days. One of the key features for wearable device is the sport and health application. For example, users get used to record the running trajectory and odometer by using the wearable GNSS navigation system and track their sport performance from the record. Nowadays, wearable device supplier utilizes the micro-electro-mechanical systems (MEMS) inertial measurement unit (IMU) to further expand the applications, such as activity recognition and pedometer. However, these two technologies have not been tightly cooperated. Due to the size and hardware limitation of the antenna design in wearable device, GNSS performance is fragile in GNSS-harsh environments, urban area, forest canopy. Especially for the speed information, it is vulnerable to unstable pseudo range and doppler measurements from bad satellites. Moreover, bad speed estimation will also result in the performance of trajectory and odometer, which are the two major standards for the users to evaluate their sport performance.
[ION GNSS+ 2022] Machine Learning-based Vehicle/Human Motion Detection of Low-cost IMU for Two-wheeler DR Navigation (AG3335AD Series)
Inertial navigation has made numerous applications for many years. One of the leading advantages is the self-contained ability to track the position and orientation of a vehicle. Nowadays, micro-electro-mechanical systems (MEMS) inertial measurement unit (IMU) enable the users to have more opportunities developing more dead-reckoning (DR) techniques on the small chip and build a great amount of potential in wheeled platform market, such as shared bike, shared e-scooter, automobile, etc. However, the conventional DR solution is not adaptive for different wheeled platforms, especially in two-wheeler applications.
[ION GNSS+ 2022] Low Power Dual-frequency Multi-constellation GNSS Receiver Designed for Wearable Applications (AG3335 Series)
Fitness wearable application in one of important category in consumer solution with GNSS (Global Navigation Satellite System). In general, fitness wearables are wrist-worn devices, and they can record the trajectory and provide the statics of speed and total distances for fitness trainers, for example, runners, cyclists, and swimmers. As the more constellations (GPS, GLONASS, Galileo, Beidou, etc..) and frequencies (L1, L2, L5, etc.) are available for civilian use, high-end wearable products with multi-GNSS are expected to provide better positioning reliability.
AG3335M is the first GNSS receiver that adopts advanced 12nm process, which greatly reduces power consumption and improves product endurance. It also supports GPS, Galileo, Beido, GLONASS, QZSS five satellite system positioning, with low tracking sensitivity of the chip (<-166dBm), short initial positioning time (<25s) ), with high positioning accuracy (<1.5m Open sky), further improve motion and mileage accuracy, making fitness wearable data more accurate.
AG3335A can output multi-Hz raw measurement data, and 1PPS up to +/- 2ns. Meet the needs of high precision, timing and other industries. Widely used in agricultural machinery, timing application for cellular base stations.
AG3335AD is equipped with A.I.N.A (Airoha Inertial Navigation Algorithm). Assists in rapid determination of attitude (such as car acceleration and deceleration; collision, etc.) and continuous GNSS positioning output without limitation. Applications are applicable for fleet management, scooters and delivery robots, etc.
The new generation of single-frequency GNSS, in addition to the continuation of the 3352 features, adds the B1C and L1C frequency bands of Beidou-3 and GPS, making the positioning accuracy close to the dual-frequency standard, and the package size is also 35% smaller than the previous generation, and the layout design is more flexible , to meet the cost-effective demand of single-frequency GNSS products in the market.