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Parameter Estimation for Multiple Chirp Signals Based on Single Channel Nyquist Folding Receiver

Zhaoyang QIU, Qi ZHANG, Minhong SUN, Jun ZHU

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Summary :

The modern radar signals are in a wide frequency space. The receiving bandwidth of the radar reconnaissance receiver should be wide enough to intercept the modern radar signals. The Nyquist folding receiver (NYFR) is a novel wideband receiving architecture and it has a high intercept probability. Chirp signals are widely used in modern radar system. Because of the wideband receiving ability, the NYFR will receive the concurrent multiple chirp signals. In this letter, we propose a novel parameter estimation algorithm for the multiple chirp signals intercepted by single channel NYFR. Compared with the composite NYFR, the proposed method can save receiving resources. In addition, the proposed approach can estimate the parameters of the chirp signals even the NYFR outputs are under frequency aliasing circumstance. Simulation results show the efficacy of the proposed method.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E103-A No.3 pp.623-628
Publication Date
2020/03/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.2019EAL2097
Type of Manuscript
LETTER
Category
Digital Signal Processing

Authors

Zhaoyang QIU
  Hangzhou Dianzi University
Qi ZHANG
  the 10th Research of Institute of China Electronics Technology Group Corporation
Minhong SUN
  Hangzhou Dianzi University
Jun ZHU
  University of Electronic Science and Technology of China (UESTC)

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