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METHOD AND SYSTEM FOR PROPAGATION TIME MEASUREMENT AND CALIBRATION USING MUTUAL COUPLING IN A RADIO FREQUENCY TRANSMIT/RECEIVE SYSTEM
METHOD AND SYSTEM FOR PROPAGATION TIME MEASUREMENT AND CALIBRATION USING MUTUAL COUPLING IN A RADIO FREQUENCY TRANSMIT/RECEIVE SYSTEM
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机译:无线电频率传输/接收系统中使用相互耦合的传播时间测量和校准的方法和系统
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摘要
A method and system use the mutual coupling property of multiple antenna elements for measuring differences in propagation time among various signal paths involving antenna elements in a radio frequency transmit/receive system. The method and system alleviate the need for external test equipment by using the same hardware used in standard operation of the transmit/receive system for performing propagation time measurement through the generation, mutual coupling, and acquisition of a specially selected reference signal. In an embodiment involving calibration of various signal paths to realize matched propagation times, the signal energy returned through these various paths during standard system operation arrives for acquisition more closely coincident in time, increasing the instantaneous bandwidth of the system.
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