Asymptotic Effectiveness of the Event-Based Sampling According to the Integral Criterion

• Main Author: Marek Miskowicz
• Format: Article
• Language: English
• Published: MDPI AG 2007-01-01
• Series: Sensors
• Subjects: data acquisition; signal sampling; sampling methods; sampled-data systems.
• Online Access: http://www.mdpi.com/1424-8220/7/1/16/

A rapid progress in intelligent sensing technology creates new interest in a development of analysis and design of non-conventional sampling schemes. The investigation of the event-based sampling according to the integral criterion is presented in this paper. The investigated sampling scheme is an extension of the pure linear send-on- delta/level-crossing algorithm utilized for reporting the state of objects monitored by intelligent sensors. The motivation of using the event-based integral sampling is outlined. The related works in adaptive sampling are summarized. The analytical closed-form formulas for the evaluation of the mean rate of event-based traffic, and the asymptotic integral sampling effectiveness, are derived. The simulation results verifying the analytical formulas are reported. The effectiveness of the integral sampling is compared with the related linear send-on-delta/level-crossing scheme. The calculation of the asymptotic effectiveness for common signals, which model the state evolution of dynamic systems in time, is exemplified.