Bypass circuit for transversal equalizer

Abstract

Abstract PURPOSE:To always obtain the best code error rate characteristic in all of both high and low S/N for a base band signal by switching selectively the base band signal whether or not it passes through a transversal equalizer in response to the code error rate. CONSTITUTION:The base band signal of an output of a detector is divided into two by a distributer 1 and the paths are provided, which are a 1st path 10 passing through the transversal equalizer and a 2nd path 20 passing through the transversal equalizer. Then the code error rate of outputs D1, D2 of the paths 10, 20 is measured by a measuring circuit 3. The decision circuit 4 compares the code error rate measured by a measuring circuit 3 with a prescribed value to decide whether or not the value is proper, thereby outputting a selection signal (s). The signal selector 2 receives the selection signal (s) to select an output of the path having the better error rate in the output D1 of the 1st path 10 and an output D2 of the 2nd path and gives an output to the demodulator.

Inventors

• 👤 Michinaga Yamagishi

Bibliographic Details