During the 9th China Satellite Navigation Conference, Broadgnss announced a new, high precision, satellite position receiver with patented RAC (Real-time Array Calibration) technology.
The product features positioning accuracy better than one meter (up to 10c m) by receiving only single frequency (GPS L1) satellite signals. The RAC technology in high precision satellite positioning frees the dependence on traditional augmentation network and significantly reduces the cost, which will enable high precision satellite positioning to enter large-scale applications.
Most consumer GPS accuracy devices are around 5 to 10 meters in size. To achieve the sub-meter level accuracy, professional GNSS receivers that connect to ground based or satellite based augmentation systems have to be used, like RTK (Real Time Kinematic) or PPP(Point Precision Position). The main problems for current high precision GPS are high costs and geographical limits.
High precision GPS receivers can also cost thousands, and the reference station for RTK network and communication network still have many blind spots on the Earth. In addition, satellite based PPP receivers also have the long initial start time issue. RAC receivers completely balance the performance and cost, overcoming the barriers of traditional high accuracy GNSS receivers. The cost is as low as only 1/10 of the traditional ones.
Broadgnss CEO Yan Shen noted that RAC technology is one disruptive high precision GPS solution, as people pursue the more accurate GPS location — the company believes the cost shouldn’t be a barrier to scaling up. Meanwhile, RAC technology opens one door for high accuracy GPS research, which could be used in more space. Broadgnss is aimed to democratize the high accuracy GNSS service and will keep moving toward this goal.