Methods and formulas for computer simulation studies of the performance of error-correcting codes for the North American Basic Teletext System (NABTS)

The rationale, methods and formulas used in computer simulation studies of the error performance of the various constituent error-correcting codes designed for the North American Basic Teletext System are described for the case when the input error sequences have an arbitrary distribution. Expressions for the overall packet rejection rate, R, and the number of picture-description instruction (PDI) errors are derived using a classification of the undetected errors in the extended Hamming