Key Parameter Estimation for Pulse Radar Signal Intercepted by Non-Cooperative Nyquist Folding Receiver.
IEICE transactions on fundamentals of electronics, communications and computer sciences/IEICE transactions on fundamentals of electronics, communications and computer science(2018)
Abstract
Nyquist folding receiver (NYFR) is a novel reconnaissance receiving architecture and it can realize wideband receiving with small amount of equipment. As a tradeoff of non-cooperative wideband receiving, the NYFR output will add an unknown key parameter that is called Nyquist zone (NZ) index. In this letter, we concentrate on the NZ index estimation of the NYFR output. Focusing on the basic pulse radar signals, the constant frequency signal, the binary phase coded signal and the linear frequency modulation signal are considered. The matching component function is proposed to estimate the NZ indexes of the NYFR outputs without the prior information of the signal modulation type. In addition, the relations between the matching component function and the parameters of the NYFR are discussed. Simulation results demonstrate the efficacy of the proposed method.
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Key words
Nyquist folding receiver,pulse radar signal,hybrid modulated signal,non-cooperative receiving,parameter estimation
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