Abstract: A method and system for detecting and characterizing an input signal receive a signal having an in-phase (I) component and a quadrature-phase (Q) component. A first IQ sample of the signal is acquired at a first point in time, and a second IQ sample of the signal is acquired at a second point in time, Using one or more processors, a delayed complex conjugate multiply (DCM) is applied to the first IQ sample of the signal and the second IQ sample of the signal to produce a constant product having an in-phase (IC) component and a quadrature-phase (QC) component. A signal magnitude and a signal frequency are determined from the IC component of the constant and the QC component of the constant, using the one or more processors.

Abstract: A method and system for detecting and characterizing an input signal receive a signal having an in-phase (I) component and a quadrature-phase (Q) component. A first IQ sample of the signal is acquired at a first point in time, and a second IQ sample of the signal is acquired at a second point in time, Using one or more processors, a delayed complex conjugate multiply (DCM) is applied to the first IQ sample of the signal and the second IQ sample of the signal to produce a constant product having an in-phase (IC) component and a quadrature-phase (QC) component. A signal magnitude and a signal frequency are determined from the IC component of the constant and the QC component of the constant, using the one or more processors.

Abstract: A signal repeater (200) includes a signal processing part (202) and a signal repeating part (204). The signal processing part includes a converter (300) configured to receive an input signal and to convert the input signal into quadrature signals, and a processor (302, 304, 306) configured to process the quadrature signals to determine one or more characteristics of the input signal, and to compare the one or more characteristics of the input signal and a plurality of predetermined characteristics to generate a comparison result. The signal repeating part (204) is configured to selectively repeat the input signal as a repeated signal in accordance with the comparison result.

Abstract: A signal repeater (200) includes a signal processing part (202) and a signal repeating part (204). The signal processing part includes a converter (300) configured to receive an input signal and to convert the input signal into quadrature signals, and a processor (302, 304, 306) configured to process the quadrature signals to determine one or more characteristics of the input signal, and to compare the one or more characteristics of the input signal and a plurality of predetermined characteristics to generate a comparison result. The signal repeating part (204) is configured to selectively repeat the input signal as a repeated signal in accordance with the comparison result.