ANTENNA SELECTING DIVERSITY RECEIVING APPARATUS

摘要

An antenna selecting diversity receiving apparatus according to the present invention utilizes the linear modulation with information about the envelope of a modulating wave included therein and is employed in a radio communication system using a TDM. An integrating circuit serves to integrate electric-field levels received by respective antennas over a predetermined period of time before a start in a time slot allotted to a radio receiver. Then, a comparing circuit makes a comparison among respective timeintegrated values corresponding to the respective antennas. In addition, a changeover control circuit serves to select an antenna corresponding to the maximum time-integrated value as the antenna used during the period of the time slot allotted to the radio receiver.