Patent ID: 6891886
Filing Date: 2005-05-10
Classification: H04B

Abstract:
1. An apparatus for finely synchronizing code signals with a coded received signal, comprising: a sampling device for sampling the received signal at regular sampling intervals to obtain sampled received signal pulses; a pulse shaper for shaping the sampled received signal pulses in order to output a first pulse-shaped sample and a second pulse-shaped sample in dependence on an autocorrelation function; a buffer for buffering the first pulse-shaped sample and the second pulse-shaped sample to obtain a buffered first pulse-shaped sample and a buffered second pulse-shaped sample; a code signal generator for generating a code signal; correlation devices for correlating the code signal with the buffered first pulse-shaped sample and the buffered second pulse-shaped sample to form two correlation values; and an interpolation device for forming an interpolation value as a function of the buffered first pulse-shaped sample and the buffered second pulse-shaped sample and as a function of a deviation between the two correlation values.