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Long-time integration is an effective way to strengthen the weak signal from low-observable target. However, the performances are affected by the range and Doppler migrations during the long observation time. In this paper, Doppler characteristics of a maneuvering target with high-order motion are studied and a novel transform, i.e., high-order generalized Lv's distribution (HGLVD), is proposed to...
A novel long-time coherent integration method, i.e., scaling processing and Radon-Fourier transform (SPRFT), is proposed to detect the low-observable manuevering target, which can compensate the range and Doppler migrations simultaneously. The target signal can be well accumulated as an obvious peak in the centroid frequency-chirp rate (CFCR) domain by simple FT calculations. It is shown that proposed...
Long-time coherent integration technique is one of the most important methods for the improvement of radar detection ability of a weak maneuvering target, whereas the integration performance may be greatly influenced by the across range unit (ARU) and Doppler frequency migration (DFM) effects. In this paper, a novel representation known as Radon-fractional Fourier transform (RFRFT) is proposed and...
Long-time coherent integration technique is one of the most important methods for the improvement of radar detection ability of weak moving target, whereas the integration performance may be greatly influenced by the across range unit (ARU) and Doppler frequency migration (DFM) effects. In this paper, a novel transform called the Radon-fractional Fourier transform (RFRFT) is proposed and investigated...
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