Method for selecting n antennas and one of m alternative reception frequencies in an antenna and frequency diversity reception system as well as antenna and frequency diversity reception system

摘要

In order to tune an antenna and frequency diversity reception system with n antennas (A1-An) and m reception frequencies to the best antenna-frequency combination, an IF stage (Z1-Zn) is assigned to each of the n antennas (A1-An). For each of the n x m possible antenna-frequency combinations, a quality signal (Q1-Qnm) representing the reception quality is generated in the IF stages (Z1-Zn). A digital signal processor (DS) determines the best antenna-frequency combination from the n x m quality signals (Q1-Qnm). The selected antenna (A1) is switched through to the digital signal processor (DS) via a multiplex switch (M), and the assigned IF stage (Z1) is matched to the determined reception frequency.