GI - Single point positioning with vertical total electron content estimation based on single-epoch data
An assessment of smartphone and low-cost multi-GNSS single-frequency RTK positioning for low, medium and high ionospheric disturbance periods | SpringerLink
L1 epochs
Imprimir - GPS Epoch 10 | PDF
Multi-Amp EPOCH-10 Protective Relay Test Set | eBay
Tightly combined triple-frequency GPS and BDS for rapid wide-lane RTK positioning with consideration of carrier-phase differential inter-system bias - Wang Gao, Shuguo Pan, Liwei Liu, He Wen, 2021