Affiliation:
1. University of Electronic Science and Technology of China
Abstract
The matched filter of chaotic radar system proposed by Ned J. Corron can be implemented through low-cost analog devices. But the spectrum of transmitted signal of this system is dispersion, causing signal in the process of propagation prone to spectrum leaked. To solve the problem, this paper proposes a low-cost signal design method. In transmitter, making chaotic signal become a band-limited signal by filtering to shape the spectrum; in receiver, using synchronization and filtering to recover the chaotic signal. The proposed method is implemented with low-cost analog devices; in addition, the method is still valid when the SNR is as low as-20dB.
Publisher
Trans Tech Publications, Ltd.
Reference7 articles.
1. Corron N J, Blakely J N, Stahl M T. A matched filter for chaos[J]. Chaos: An Interdisciplinary Journal of Nonlinear Science, 2010, 20(2).
2. Blakely J N, Corron N J. Concept for low-cost chaos radar using coherent reception[C]/ SPIE Defense, Security, and Sensing. International Society for Optics and Photonics, (2011).
3. N. Levanon, E. Mozeson. Radar Signals[M]. John Wiley & Sons, New York, (2004).
4. Leshem A, Naparstek O, Nehorai A. Information theoretic adaptive radar waveform design for multiple extended targets [J]. IEEE Journal of Selected Topics in Signal Processing, 2007, 1(1).
5. Li J J, Jiang Y H, Dan B. Phase-coding signal design method for phased-MIMO radar [J]. Systems Engineering and Electronics, 2014, 36(2): 254-259.