Time-Limited Perturbation Waveform Generation by an Extended Time-Frequency Domain Swapping Algorithm
A time-limited pseudo-random signal is an important component in perturbation signals during a system identification procedure. In this paper, a finite-time duration pseudo-random waveform with desired continuous spectral features is generated using an extended time-frequency domain swapping algorithm. Multi-Sine waveforms are used as initial waveforms. Through iterations, the waveform is polished to achieve desired spectral features and small crest factor. A comparison with multi-sine waveforms shows that the new waveform generated with the proposed algorithm has a much flatter spectrum and smaller crest factor as being desired.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 973452
- Report Number(s):
- PNNL-SA-60512; 830403000; TRN: US201006%%262
- Resource Relation:
- Conference: The 51st IEEE Midwest Symposium on Circuits and Systems (MWSCAS 2008), August 10-13, 2008, Knoxville, Tennessee, 149-152
- Country of Publication:
- United States
- Language:
- English
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