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Ultra-wideband Chaotic On-Off Keying modulator and demodulator: Design and simulation
Proceedings - 1st International Workshop on Nonlinear Systems and Advanced Signal Processing, IWNSASP-2010 Số , năm 2010 (Tập , trang 157-163)
DOI:
Tài liệu thuộc danh mục: Scopus
Conference Paper
English
Từ khóa: Branch line couplers; Chaos; Chaotic colpitts oscillator; Chaotic comunication; Envelope detector; Non-linear dynamic; On-off keying; PiN diode; Quadrature Hybrid Matched Attenuator; UWB; Demodulation; Demodulators; Detector circuits; Detectors; Modulators; Nonlinear systems; Oscillators (electronic); Semiconductor diodes; Signal processing; Ultra-wideband (UWB); Wireless telecommunication systems; Design
Tóm tắt tiếng anh
In this paper we propose, design and simulate the novel structure of to Chaotic On-Off Keying (COOK) modulator and demodulator applicable to Ultra-Wide band (UWB) wireless communications. In the modulation scheme, we use a Quadrature Hybrid Matched Attenuator which consists of a three-section Branch-line Coupler and PIN diodes. In the demodulation scheme, we use an improved amplitude envelope detector which has the broadband impedance match. All circuits in this system are designed and simulated in the frequency range from 3.1 to 5.5 GHz with practical electronic devices and micro-strip substrate using the Advanced Design System (ADS) platform. The simulation results of proposed schemes demonstrate the potential use of such modulator for chaotic UWB wireless communication applications.
