Method and apparatus for cancelling in-band energy leakage from transmitter to receiver
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United States of America Patent
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Aug 22, 1995
Grant Date -
N/A
app pub date -
Dec 22, 1992
filing date -
Dec 22, 1992
priority date (Note) -
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Abstract
A method and apparatus system for cancelling a leak-through signal component generated by an interfering transmitter from a received/leak-through signal comprising a multiplier for multiplying the received/leak-through signal by a reference signal provided from the interfering transmitter. The system further includes an integrator for integrating the output of the multiplier to generate an estimate of the gain and phase of the leak-through signal component. A gain and phase adjustor, responsive to the generated gain and phase estimates, is also included for adjusting the gain and phase of the reference signal to generate a cancellation signal that is a substantially gain and phase matched estimate of the leak-through signal. The generated cancellation signal is then subtracted from the received/leak-through signal to substantially cancel the leak-through signal component.
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