Comments on "Autocorrelation Function of Sequential M-Bit Words Taken from an N-Bit Shift Register (PN) Sequence"

This note suggests that the result by D. R. Morgan
¹
is already covered by a more general solution obtained in [1] by A. R. Pratt. There the general problem of computing the autocovariance function of linearly weighted words from maximum length pseudorandom sequences is solved.