On a Scrambling Property of Feedback Shift Registers
U. Henriksson · IEEE Transactions on Communications · 1972
A scrambling property of binary feedback shift registers is investigated. When the input sequence has a certain defined randomness, the output symbols are uncorrelated everywhere, except possibly at symbol separations that are integer multiples of the exponent of the feedback polynomial. At those points the output autocorrelation is shown to be equal to higher order moments of the input sequence.