Signal integrity control technique for an RF communication system
作者： Duane C. Rabe , James E. Mitzlaff
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摘要: An interference detecting circuit is used in a cellular radiotelephone communication system which employs angular modulated frequencies order to determine when change the process so as maintain integrity of path. For example, detects an excessive amount multipath or co-channel on channel serving active call, may decrease effective data bit rate. The includes logarithmic envelope detector for receiving channel's signal and providing log output signal, high pass filter removing particular range undesired from level indicating filtered signal. represents frequency A microcomputer analyzes such changes are desired.
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