An introduction to prism signal processing

Conference item

The Internet of Things (IoT) [1] and Industrie 4.0 [2] propose substantial increases in the deployment of sensors into a diverse range of environments. The challenges are considerable: local computational power must be efficiently and flexibly deployed both to perform current metrological tasks and to reconfigure/redesign the signal processing flow as monitoring requirements evolve over time.

This paper introduces the Prism (precise, repeat integral, signal monitor), a new type of signal processing block, as a contribution towards to the challenges of 21st Century metrology. The Prism acts as a fully recursive, dual output, FIR filter: the computational burden is low and independent of data window length. Prism design is trivial, so that networks of Prisms can be assembled, whether at design time or autonomously in real time, to carry out a wide range of metrological tasks. Prism-based trackers for the frequency, phase and/or amplitude of a sinusoid perform close to the Cramer-Rao Lower Bound (CRLB) for SNRs down to 0 dB.

Authors: Henry, M

• Publication status: Published
• Peer review status: Reviewed (other)
• Publisher: All-Russian Scientific Research Institute of Metrology
• Host title: International Scientific and Practical Conference «175 years of the D.I. Mendeleyev Institute for Metrology (VNIIM) and National Measurement System»
• Journal: An introduction to prism signal processing.
• Publication date: 2017-06-01
• Acceptance date: 2017-05-11