Radar echo signal amplitude fourier transform method under staggered pulse repetition intervals

Abstract

The present application relates to radar signal processing technical field, provide the radar echo signal amplitude fourier transform method under the uneven pulse repetition interval, include: signal reconstruction: uneven pulse repetition interval confirmation, the formation mechanism of time domain multiplication uneven pulse repetition interval, signal column vector reconstruction obtains uniform sampling interval; Fourier transform under the uniform sampling interval: Fourier transform of uneven pulse repetition interval column vector and reconstructed signal column vector, calculate amplitude spectrum density; The calculation matrix generation and the real radar echo signal amplitude spectrum density obtain: the uneven pulse repetition interval amplitude spectrum density column vector and the reconstructed signal column vector amplitude spectrum density column vector are reconstructed into a matrix, the frequency domain deconvolution based on the amplitude spectrum density obtains the amplitude spectrum density matrix of the de-reconstruction signal, the matrix is converted into a vector, the clutter and mirror frequency component intercept effective amplitude spectrum density. The present application solves the problem of converting the signal of uneven pulse repetition interval of radar from time domain to frequency domain.

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