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In this paper, a Prony estimation method on wavelet-transformed space-time signal is proposed with Adaptive Simulated Annealing (ASA) algorithm as a global optimizer. In addition to denoising property of wavelet transformation, the proposed approach appeals to its decor relating nature. Our method improves the performance of radar systems with large array antenna, such as OTH radars in STAP applications...
On the basis of the detection and estimation model of multiple moving targets, a new algorithm based on wavelet packet transform (WPT) and fractional Fourier transform (FRFT) is proposed for weak moving targets detection in sea clutter. The multi-resolution property of WPT and the characteristic of good energy concentration on LFM signals in FRFT domain are combined together. At first, optimal wavelet...
Radar signal processing system is an important part of vessel traffic services. In order to overcome the shortcomings of traditional analog video system, this paper proposes a design solution for digital radar signal processing system based on DSP and a new method that is a constant false alarm rate algorithm based on wavelet transform. This method can suppress the interference of sea clutter without...
In this work, the continuous wavelet transform (CWT) is used to analyze periodic motions, measured by contactless Doppler radar, which have small amplitudes, drifting frequencies and dropouts. Using a classical method like fast Fourier transform (FFT) for periodic signals results in loss of the time behavior of the signal, drifting frequencies and dropouts, causing distortion in the frequency peaks...
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