WebJul 2, 2015 · In multiple-input multiple-output radar systems, the employed waveforms should have a large time-bandwidth product, good correlation property and satisfactory ambiguity function performance. This paper proposes a orthogonal frequency division multiplexing (OFDM) chirp waveform diversity design scheme with sparse modeling … WebThe orthogonal frequency-division multiplexing (OFDM) chirp waveform has attracted much attention due to its high range resolution, low peak-to-average ratio, and large time-bandwidth product. In its application to multiple-input multiple-output radar, the correlation property of multiple OFDM chirp waveforms should be considered primarily for good …
High precision hybrid RF and ultrasonic chirp-based
WebJul 13, 2024 · The autocorrelation is the inverse Fourier Transform of the power spectral density. The inverse Fourier Transform of a rectangular pulse in frequency with total bandwidth B is a Sinc function in time with … WebDec 4, 2024 · To analyze wide-band nonlinear chirp signals (NCSs), we present an alternative method called variational nonlinear chirp mode decomposition (VNCMD). The VNCMD is developed from the fact that a wide-band NCS can be transformed to a narrow-band signal by using demodulation techniques. Our decomposition problem is thus … ray farria
Sub Bottom Profiling Chirp Signal Processing - GeoConvention
WebNov 3, 2024 · However, if up-chirps and down-chirps are employed on different pulses in the same Coherent Processing Interval (CPI), then care must be taken to maintain … WebAug 4, 2016 · The chirp, which is essentially a sinusoidal signal whose phase changes instantaneously at each time sample, has an interesting property in that its correlation … WebThe chirp Z-transform(CZT) is a generalization of the discrete Fourier transform(DFT). While the DFT samples the Z planeat uniformly-spaced points along the unit circle, the chirp Z-transform samples along spiral arcs in the Z-plane, corresponding to straight lines in the S … ray farm management