Method and apparatus for reproducing timing, and a...

Details Method and apparatus for reproducing timing, and a... Method and apparatus for reproducing timing, and a...

H - Electricity

04

L

H04L 7/02 (2006.01) H04B 7/005 (2006.01) H04L 7/033 (2006.01) H04L 27/22 (2006.01)

Patent

CA 2338922

Two A/D converters sample received base band signal Sb by asynchronous sampling clock at double speed of symbol rate, and based on the sampled data series I i, Q i. A transmission complex symbol frequency generator generates data series E i, D i of transmission complex symbol frequency component. A correlation value calculator outputs correlation data series SM i as the correlation value of cosine wave data series C i, and data series E i, D i of symbol frequency generated by a cosine wave generator, based on the asynchronous sampling clock CK. An inverse tangent calculator outputs a timing error z based on the correlation data series SM i.

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