Title :
Chaotic systems: a challenge for measurement and analysis
Author :
Kolumbán, Géza ; Vizvári, Béla ; Mögel, Andreas ; Schwartz, Wolfgang
Author_Institution :
Dept. of Meas. & Instrum. Eng., Tech. Univ. Budapest, Hungary
Abstract :
The chaotic signal generated by a deterministic system seems to be random for an observer if the method of signal generation is not known. The chaotic signal has a broadband spectrum, however its amplitude is bounded. These properties imply that the chaotic signal can be used as a random excitation in order to measure the frequency response of a system operating in the linear region. The advantages of the chaotic signals are: due to the bounded amplitude, the system under test cannot be overdriven, moreover high power level can generated with simple circuit configuration. The paper shows that the frequency response can be determined using chaotic excitation. The chaotic signals are generated by a tent map in the discrete and by an analog phased-locked loop (APLL) in the continuous time domain
Keywords :
analogue processing circuits; chaos; frequency response; phase locked loops; quantisation (signal); random processes; signal generators; signal processing; signal sources; time-domain analysis; analog phased-locked loop; bounded amplitude; broadband spectrum; chaotic excitation; chaotic signal; chaotic systems; continuous time domain; deterministic system; frequency response; high power level; random excitation; signal generation; Chaos; Circuit testing; Frequency measurement; Frequency response; Impulse testing; Power generation; Signal generators; System testing; Time measurement; Wideband;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1996. IMTC-96. Conference Proceedings. Quality Measurements: The Indispensable Bridge between Theory and Reality., IEEE
Conference_Location :
Brussels
Print_ISBN :
0-7803-3312-8
DOI :
10.1109/IMTC.1996.507601
