The GNSS receiver measures the transit time of signals sent by the GNSS satellites and calculates its position from the distances between the receiver and the satellites.
When the GNSS receiver antenna is not receiving directly the satellite signals but reflections of these signals, a position error may occur since the computation of the distances between the receiver and the satellites may be biased.
The use of the Advanced Multipath Mitigation function allows FURUNO's GNSS receiver chips and modules to mitigate position errors caused by the reception of the reflected signals.
The Advanced Multipath Mitigation function allows the receiver to distinguish directly received signals from reflected signals and processes them all to compute accurate positions and provide precise ground tracking.
Actual positioning data of eRideOPUS 7 with Advanced Multipath Mitigation enabled & disabled in the deep urban canyon of Osaka downtown, Japan.
All products of FURUNO's eRideOPUS 6 series and eRideOPUS 7 series support Advanced Multipath Mitigation function. (chips, modules)
Concurrent Multi-GNSS Receiver Chip
eRideOPUS 6 is a small and high sensitivity Multi-GNSS receiver chip with high position accuracy.
Concurrent Multi-GNSS Receiver Module
GN-86 is a small and high sensitivity Multi-GNSS receiver module
Dead Reckoning + Concurrent Multi-GNSS Receiver Module
Small Package, High Sensitivity DR (Dead Reckoning) + GPS Module
Extremely high stability of 4.5ns (1sigma) using a single band receiver
High sensitivity and high accuracy timing Multi-GNSS Receiver Module
Atomic clock class stability GNSSDO
24-hour holdover performance comparable to Rubidium