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We experimentally demonstrate a time-domain reflectometry (TDR) method for detecting cable faults, which employs a Boolean circuit to generate a wideband chaotic waveform acting as probe signal and further locates faults by correlating a duplicate of the probe signal and the back-reflected signal. The Boolean circuit is a small delayed-feedback system mainly consisting of two exclusive-OR (XOR) gates...
Experimental study of the ultrahigh-frequency chaotic dynamics generated in an improved Colpitts oscillator is performed. Reliable and reproducible chaos can be generated at the fundamental frequency up to 1.5 GHz using the microwave BFG520 type transistors with the threshold frequency of 9 GHz. By the tuning of the supply voltages, we observe complex nonlinear dynamics like period-one oscillation,...
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