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Note: in the software world, the equivalent construction to the LFSR with "fat" polynomial is the xorshift PRNG. For more details, see the book: Numerical Recipes, 3rd edition (not…

The standard PRBS23 polynomial is X^23 + X^18 + 1. Most of the factors are zero. Only the factors for exp 23,18,1 are 1. This causes poor bit mixing - ie the output sequence will h…

For less visual artifacts it is recommended to use PRBS with 50% of the taps 0, 50% of the primitive polynomial tap 1. Same period (2^n-1), but less short-term correlations.