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  2. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    Modern racons are frequency-agile; they have a wide-band receiver that detects the incoming radar pulse, tunes the transmitter and responds with a 25 microsecond long signal within 700 nanoseconds . Older racons operate in a slow sweep mode, in which the transponder sweeps across the X-band over 1 or 2 minutes.

  3. Frequency response - Wikipedia

    en.wikipedia.org/wiki/Frequency_response

    In signal processing and electronics, the frequency response of a system is the quantitative measure of the magnitude and phase of the output as a function of input frequency. [1] The frequency response is widely used in the design and analysis of systems, such as audio and control systems, where they simplify mathematical analysis by ...

  4. Radar signal characteristics - Wikipedia

    en.wikipedia.org/wiki/Radar_signal_characteristics

    A radar system uses a radio-frequency electromagnetic signal reflected from a target to determine information about that target. In any radar system, the signal transmitted and received will exhibit many of the characteristics described below.

  5. Bode plot - Wikipedia

    en.wikipedia.org/wiki/Bode_plot

    In electrical engineering and control theory, a Bode plot / ˈboʊdi / is a graph of the frequency response of a system. It is usually a combination of a Bode magnitude plot, expressing the magnitude (usually in decibels) of the frequency response, and a Bode phase plot, expressing the phase shift .

  6. Image response - Wikipedia

    en.wikipedia.org/wiki/Image_response

    Image response (or more correctly, image response rejection ratio, or IMRR) is a measure of performance of a radio receiver that operates on the superheterodyne principle. [1] In such a radio receiver, a local oscillator (LO) is used to heterodyne or "beat" against the incoming radio frequency (RF), generating sum and difference frequencies ...

  7. Duffing equation - Wikipedia

    en.wikipedia.org/wiki/Duffing_equation

    The Duffing equation is an example of a dynamical system that exhibits chaotic behavior. Moreover, the Duffing system presents in the frequency response the jump resonance phenomenon that is a sort of frequency hysteresis behaviour.