Volume 31 Issue 1
Jan.  2022
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QIU Zhaoyang, LI Tingpeng, WANG Yiming. Parameter Estimation of Multiple Mono-Pulse Radar Signals Intercepted by Nyquist Folding Receiver Using Periodic Chirp Local Oscillator Based on Periodic Fractional Autocorrelation[J]. Chinese Journal of Electronics, 2022, 31(1): 181-189. doi: 10.1049/cje.2020.00.305
Citation: QIU Zhaoyang, LI Tingpeng, WANG Yiming. Parameter Estimation of Multiple Mono-Pulse Radar Signals Intercepted by Nyquist Folding Receiver Using Periodic Chirp Local Oscillator Based on Periodic Fractional Autocorrelation[J]. Chinese Journal of Electronics, 2022, 31(1): 181-189. doi: 10.1049/cje.2020.00.305

Parameter Estimation of Multiple Mono-Pulse Radar Signals Intercepted by Nyquist Folding Receiver Using Periodic Chirp Local Oscillator Based on Periodic Fractional Autocorrelation

doi: 10.1049/cje.2020.00.305
Funds:  This work was supported by State Key Laboratory of Complex Electromagnetic Environment of Effects on Electronics and Information System (CEMEE) (CEMEE2019K0202B) and National Natural Science Foundation of China (61901149, 61906055).
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  • Author Bio:

    (corresponding author) received the Ph.D. degree in signal and information processing from University of Electronic Science and Technology of China. He is currently with Hangzhou Dianzi University, Hangzhou, China. His research interests include complex signal processing, sampling, and wideband receiver. (Email: nervqzy@hotmail.com)

    received the B.S. degree in mechanical engineering from National University of Defense Technology in 2010 and the M.S. and Ph.D. degrees in mechanical engineering in 2013 and 2016, respectively. His research interest includes integration support technology and complex electromagnetic environment effects. (Email: tovey1987@126.com)

    received the Ph.D. degree from the Nanjing University of Posts and Communications, China. She is currently a Full Professor with the School of Rail Transportation, Soochow University, China. Her research interests include wireless communications, cognitive wireless sensor networks, and intelligent transportation technology. (Email: ymwang@suda.edu.cn)

  • Received Date: 2020-09-18
  • Accepted Date: 2021-01-13
  • Available Online: 2021-10-16
  • Publish Date: 2022-01-05
  • The frequency space of modern radar system has been extended to a wide range. To intercept the modern radar signals with high interception probability, the wideband receiving is of significance to the radar reconnaissance receiver. The Nyquist folding receiver (NYFR) is a novel ultra-wideband receiving architecture, which requires a small amount of equipment. Because the mono-pulse radar signal is widely used in radar systems, the multiple mono-pulse radar signals will be intercepted by the NYFR. The parameter estimation of multiple simultaneous arrival mono-pulse radar signals intercepted by the NYFR using periodic chirp local oscillator is considered. The definition of periodic fractional autocorrelation (PFA) is proposed. Based on the PFA, a novel fast parameter estimation method is given. The proposed estimation approach can estimate the multiple NYFR outputs under frequency aliasing condition and has low computational complexity. Simulation results show the effectiveness of the proposed method.
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