[PDF] chirp signal analysis

A chirp signal shares the same spectral content with an impulse signal. However, unlike in the impulse signal, spectral components of the chirp signal have different phases, i.e., their power spectra are alike but the phase spectra are distinct.
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  • Why are chirp signals used?

    The chirp pulse compression process transforms a long duration frequency-coded pulse into a narrow pulse of greatly increased amplitude.
    It is a technique used in radar and sonar systems because it is a method whereby a narrow pulse with high peak power can be derived from a long duration pulse with low peak power.

  • What is the formula for chirp signal?

    A chirp signal is a signal with time-varying frequency.
    The generic form of a chirp signal is u(t) = A sin(?(t)) where ?(t) is the instantaneous phase.11 mar. 2021

  • Why is a chirp signal used in radar?

    Some of the benefits of a Chirp radar over a simple pulse radar are range enhancement, range resolution enhancement, the use of lower peak input power for comparable performance, a greater level of noise immunity, reduced power supply voltage, and a slightly more jamming resistance radar architecture.

  • Why is a chirp signal used in radar?

    A "chirp" is a frequency modulated signal widely used in ultrasound imaging to increase the signal-to-noise ratio and penetration depth.
    In medical ultrasound imaging, resolution and penetration are two major criteria that are inversely proportional.

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