Chaotic carrier pulse position modulation communication system and method

US6310906A · kind A · utility

Assignee

• The Regents of the University of California · US

Inventors

• Henry D. I. Abarbanel · Del Mar, US
• Lawrence E. Larson · Del Mar, US
• Nikolai Rulkov · San Diego, US
• Mikhail Sushchik · San Diego, US
• Lev S. Tsimring · San Diego, US
• Alexander R. Volkovskii · San Diego, US

Key dates

• Filing date: Aug 18, 1999
• Grant date: Oct 30, 2001
• Expiry date: Aug 18, 2019

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L27/001
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A chaotic carrier pulse position modulation communication system and method is disclosed. The system includes a transmitter and receiver having matched chaotic pulse regenerators. The chaotic pulse regenerator in the receiver produces a synchronized replica of a chaotic pulse train generated by the regenerator in the transmitter. The pulse train from the transmitter can therefore act as a carrier signal. Data is encoded by the transmitter through selectively altering the interpulse timing between pulses in the chaotic pulse train. The altered pulse train is transmitted as a pulse signal. The receiver can detect whether a particular interpulse interval in the pulse signal has been altered by reference to the synchronized replica it generates, and can therefore detect the data transmitted by the receiver. Preferably, the receiver predicts the earliest moment in time it can expect a next pulse after observation of at least two consecutive pulses. It then decodes the pulse signal beginning at a short time before expected arrival of a pulse.