NMEA v0183 is a "standard" commonly used by GPS receivers and other marine electronics gear to report things like time, position, velocity, number of satellites seen, radar contacts and a host of other details. The standard consists of ASCII text sentences whose fields are comma delimited and whose final field is an 8 bit checksum. Given a full NMEA string (beginning with the leading $ and including the checksum), gps_chksum.m calculates the terminating checksum allowing one to verify the string has been received as it was written.
Val Schmidt (2021). gps_chksum (https://www.mathworks.com/matlabcentral/fileexchange/36385-gps_chksum), MATLAB Central File Exchange. Retrieved .
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