Optimisation of second-order interpolator for bandlimited direct-sequence spread-spectrum communication

摘要

Fully digital receivers operate on samples of the received signal, taken by a fixed clock. Signal samples at instants of maximum eye opening are obtained by interpolating between available samples. A second-order quadratic interpolator is optimised for minimum bit error rate (BER) degradation, when operating on a bandlimited direct-sequence spread-spectrum (DS/SS) signal.