RECEIVER FOR TRANSMITTING NONLINEAR DATA

摘要

PURPOSE: To improve a non-linear LSI which can not be formed by a conventional receiver by including one or more look-up tables for evaluating a presumed channel output signal without any noise in a receiver. CONSTITUTION: Tables LUT and LUT are address designated by vectorsΛa k andΛa k in which the latest bitsΛa k=+1 andΛa k=-1 are arithmetically known. The size of the both tables can be half, and only one part of f(ak) for ak=+1 and -1 is stored in the LUT and LUT . The several latest bits ofΛa k are arithmetically known in a Viterbi detector in each kind of type. This can further reduce the size of each table. The complete vectorΛa k is arithmetically known for the Viterbi detector. This enables each table to step back to a single register which stores a corresponding assumed channel output without any noise.