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| Chaotic FM Radar Imaging Simulation |
| Ding Kai①②③; Yang Ruliang①② |
①Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China;
②The National Key Laboratory of Microwave Imaging Technology, Beijing 100080, China;
③Graduate School of Chinese Academy of Sciences Beijing, 100039, China |
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Abstract Chaotic FM signal is similar to random signal. It has good Electronic Counter-Counter Measure (ECCM) capabilities. In this paper, chaotic FM signal is used to improve the ECCM capabilities of imaging radar. A kind of chaotic series was generated using n-Way Bernoulli map. The signals modulated by this kind of series have ideal auto-correlation property. High resolution image can be achieved using these signals. However, the waveform is very hard to estimate. In this paper, the chaotic FM signal model is discussed, and point target imaging is simulated. The simulation result shows that ideal point target image can be achieved using chaotic FM signal, which has good prospects to be applied in imaging radar system.
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Received: 16 July 2004
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2006, Vol. 28 
