DIVERSITY SYSTEM FOR VEHICLE EXPLORATION ANTENNAS.

摘要

An antenna diversity scanning system is presented for a vehicle that determines the maximum level of current reception signal for a current reception situation in very short level comparison periods that do not affect reception. The maximum level of the current reception signal for a current reception situation is determined in very short level comparison periods that start repeatedly after longer periods. Level comparison periods are selected to be shorter so that reception is not affected. The diversity processor does not switch during level comparison periods. The position of the updated maximum level switch is used to switch the signals received at the receiver. The system has a multi-antenna system with at least two antennas (A1, A2, ...), a controllable logic switch (2) for diversity reception and a diversity processor (4) that changes the switch to another position In the case of noise. The maximum level of the current reception signal for the current reception situation is determined in very short level comparison periods that start repeatedly after longer periods. Level comparison periods are selected to be so short that reception is not affected. The diversity processor does not switch during level comparison periods. The position of the updated maximum level switch is used to switch the signals received at the receiver.