A Muslim woman who accused a Sydney police officer of ripping off her burqa to see her face has had her jail sentence overturned after a judge decided the woman's identity could not be verified.

Carnita Matthews, 47, was initially sentenced to six months in jail for deliberately making a false declaration to police.

She alleged an officer had removed her burqa to confirm her identity after pulling her over while she was driving near Campbelltown despite a police in-car camera recording that confirms the officer did no such thing.