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With the advantages of nonvacuum plasma operation, low gas temperature, mild discharge, high yield of active species, etc., atmospheric-pressure DBDs have shown immense potentials for numerous applications. As a spatially extended dissipated system, atmospheric-pressure DBDs with a large number of freedom degrees possess rich and complex temporal nonlinear behaviors including period doubling bifurcation,...
Traditionally, most ultrasonic ranging systems are excited using pulse signals. A hardware platform of ultrasonic ranging system that is excited using a sine signal is presented. On the basis of the new hardware platform, the chaotic sine frequency modulation (CSFM) sequence is proposed to excite ultrasonic transducers. Correlation characteristics of the echo signals generated using the CSFM excitation...
In this paper, the temporal nonlinear behaviors of pulsed dielectric barrier discharge in atmospheric helium are studied numerically by a one-dimensional fluid model. The results show that the common single-period pulsed discharge with two current pulses per single voltage pulse can take place over a broad parameter range. The rising and falling times of the voltage pulse can affect the discharge...
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