Chaotic signal reconstruction with application to noise radar system

Lidong Liu, Jinfeng Hu, Zishu He, Chunlin Han, Chi Lu
2010 2010 International Symposium on Intelligent Signal Processing and Communication Systems  
Chaotic signals are potentially attractive in engineering applications, most of which require an accurate estimation of the actual chaotic signal from a noisy background. In this article, we present an improved symbolic dynamicsbased method (ISDM) for accurate estimating the initial condition of chaotic signal corrupted by noise. Then, a new method, called piecewise estimation method (PEM), for chaotic signal reconstruction based on ISDM is proposed. The reconstruction performance using PEM is
more » ... mance using PEM is much better than that using the existing initial condition estimation methods. Next, PEM is applied in a noncoherent reception noise radar scheme and an improved noncoherent reception scheme is given. The simulation results show that the improved noncoherent scheme has better correlation performance and range resolution especially at low signal-to-noise ratios (SNRs).
doi:10.1109/ispacs.2010.5704782 fatcat:6ukluatb7va3rit4hos3pi47qq