CHAOTIC OSCILLATOR FOR DUAL FUNCTIONAL RADAR-COMMUNICATION OPERATION

With the increase in demand for wireless services and range-Doppler imaging, the
communication and radar systems need to share electromagnetic spectral resources.
Several waveforms were proposed to address this spectral congestion. However, many of
these waveforms cannot encode the data at higher rates or suffer from range-Doppler
imaging capabilities. In this work, we propose a self-modulated 6D chaotic oscillator for
joint radar-communication systems. This chaotic oscillator consists of slow and fast
oscillating subsystems. The slow oscillating subsystem is used to change the fast oscillating
subsystems time constant continuously, thereby generating quasi wideband frequency
modulated (FM) waveforms. The self-synchronizing property of the chaotic oscillator will
be exploited for the communication system, while its output that produces the wideband
waveforms is used for radar imaging. As a first step, the transmitter will be implemented
on a protoboard using simple electronic components. Then, the data generated from the
oscillator is used to test the correlation analysis. The future work on this system consists of
designing and implementing the response chaotic circuit necessary for decoding the
information at the communication receiver.