Output details

An FPGA Correlator for Continuous Real-Time Measurement of Particulate Flow

This paper presents a new solution to real-time correlation signal processing for the velocity measurement of pneumatically conveyed particles. The technique, based on an incremental calculation of the cross-correlation between two signals, enables, for the first time, continuous real-time measurement to be performed at a rate 1000x faster than in previous work. The technique also used logarithmic signal processing to perform the complex normalisation calculations which further improved system performance while significantly reducing system complexity. The technique facilitates the practical implementation of multi-channel correlation processing algorithms in conjunction with electrostatic and capacitive sensor arrays for real-time particle flow measurement.