New methods for dual constellation single receiver positioning and integrity monitoring. - Shaojun Feng; Altti Jokinen; Carl Milner; Washington Ochieng (Geo spatial Inf. Sci., 2013)

Integrity monitoring of fixed ambiguity Precise Point Positioning (PPP) solutions. - Altti Jokinen; Shaojun Feng; Wolfgang Schuster; Washington Ochieng; Chris Hide; Terry Moore; Chris Hill (Geo spatial Inf. Sci., 2013)

Allystar low power/small chip size dual-frequency RTK solution. - Altti Jokinen; Ryan Yang; Yi-Fen Tseng; Hongtao Yu; Mingo Tsai; Gary Hau; Ali Pirsiavash; Marco Mendonca (ENC, 2020)