The optimization on BER performance of UWB non-coherent receiver based on OOK scheme is investigated.The optimum parameters combination of length of integration interval and SNR in the integration interval
which makes the BER minimum
is obtained theoretically and practically.A modified least-squares-based algorithm is proposed in this study
which applies the Gaussian approximation to the exact optimal threshold.Meanwhile
the feasibility of the traditional approximation is explored.The results show that
compared with the conventional method
the optimum parameters proposed in the study increase the system performance greatly.