Abstract

We introduce a new metric, low-frequency spectrum-weight (LFSW), for evaluating spectrum compression of arbitrarily high-order spectral-null (HOSN) codes around dc. We show that the asymptotic low-frequency spectral components of Mth-order spectral-null codes (dc/sup M/-free codes, M/spl ges/1) are exclusively determined by the order M and the LFSW, and that LFSW equals the zero-frequency spectral content of the corresponding sequence of Mth-order running digital sum values. Closed-form expressions for LFSW of HOSN codes constructed through independent encoding and maxentropic dc-free codes are presented.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call