caa a22 4500 606205802 CHVBK 20210128101008.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s00034-014-9948-5 doi (NATIONALLICENCE)springer-10.1007/s00034-014-9948-5 FPGA Implementation of a Real-Time Weak Signal Detector Using a Duffing Oscillator [Elektronische Daten] [Vahid Rashtchi, Mohsen Nourazar] This paper presents an implementation of a weak signal detector using a Duffing oscillator on field programmable arrays (FPGAs) for the real-time detection of weak signals in noisy environments. The proposed implementation has combined the efficiency of weak signal detection by chaotic oscillators in noisy environments with the advantages of hardware implementation to achieve an efficient weak signal detector. To optimize the performance versus area, we have used VHDL. A novel state detector, phase trajectory autocorrelation, has been introduced for the state detection of the Duffing oscillator. As an experiment, the Duffing oscillator has been implemented on a Cyclone IV GX FPGA. In this paper, in addition to the structure and resource utilization of the design, experimental results are presented to demonstrate the effectiveness of the proposed implementation. Springer Science+Business Media New York, 2015 FPGA implementation nationallicence Weak signal detection nationallicence Duffing oscillator nationallicence Autocorrelation nationallicence Chaotic oscillator nationallicence Hardware implementation nationallicence Real-time nationallicence Rashtchi Vahid Electrical Engineering Department, University of Zanjan, Zanjan, Iran aut Nourazar Mohsen Electrical Engineering Department, University of Zanjan, Zanjan, Iran aut Circuits, Systems, and Signal Processing Springer US; http://www.springer-ny.com 34/10(2015-10-01), 3101-3119 0278-081X 34:10<3101 2015 34 34 https://doi.org/10.1007/s00034-014-9948-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00034-014-9948-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rashtchi Vahid Electrical Engineering Department, University of Zanjan, Zanjan, Iran aut NATIONALLICENCE 700 1- Nourazar Mohsen Electrical Engineering Department, University of Zanjan, Zanjan, Iran aut NATIONALLICENCE 773 0- Circuits, Systems, and Signal Processing Springer US; http://www.springer-ny.com 34/10(2015-10-01), 3101-3119 0278-081X 34:10<3101 2015 34 34