Method and arrangement of estimating data sequences transmitted

Details Method and arrangement of estimating data sequences transmitted Method and arrangement of estimating data sequences transmitted

1992-11-02

1995-09-12

Chin, Stephen

Pulse or digital communications

Receivers

Angle modulation

375349, H04L 2706

Patent

active

054504457

ABSTRACT:
A method and apparatus of estimating a data sequence transmitted using a Viterbi algorithm, are disclosed. Sampled values of incoming data are acquired at a predetermined time interval into a memory. Subsequently, a plurality of sampled values are retrieved from the memory. Further, a plurality of receive signal replicas, which have been previously prepared and stored in another memory, are retrieved. A plurality of receive signal replicas are determined by multiplying the sampled values by the receive signal replica coefficients. Branch metrics are then determined using the sampled values of the incoming data and the receive signal replicas. A data sequence is estimated using the branch metrics according to the Viterbi algorithm.

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