Electronic warfare support (ES) plays an important role in gathering and analyzing signals from enemy emitters to provide friendly electronic attack (EA) systems or electronic protection (EP) systems with crucial information. However, ES systems may have difficulty in gathering meaningful signals because there is no prior information about the signal in most cases, and the signal is sometimes too weak or distorted. In this paper, we propose a novel weak-signal detection method to solve these problems based on a modified sinc wavelet transform. This method exploits the frequency shifting property to change the center frequency of a band-pass filter and then applies the scaling property of the continuous-time wavelet transform to vary its bandwidth. This approach is distinguished from previous works in terms of the detection capability of weak signals with high-frequency or multifrequency components. Computer simulation results show that the proposed method can be used in practical implementation to deal with signals that have a low signal-to-noise ratio (SNR).
Weak radar signal detection based on variable band selection
IEEE Transactions on Aerospace and Electronic Systems ; 52 , 4 ; 1743-1755
2016-08-01
2123721 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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