FPGA-Based Doppler Frequency Estimator for Real-Time Velocimetry

Frequency division multiplexing for interferometric planar Doppler velocimetry.

A new method of acquiring simultaneously the signal and reference channels used for interferometric planar Doppler velocimetry is proposed and demonstrated. The technique uses frequency division multiplexing (FDM) to facilitate the capture of the requisite images on a single camera, and is suitable for time-averaged flow measurements. Furthermore, the approach has the potential to be expanded t...

Real-Time Particle Image Velocimetry for Feedback Loops Using FPGA Implementation

Digital Particle Image Velocimetry (PIV) is well established as a fluid dynamics measurement tool, being capable of non-intrusively and concurrently measuring a distributed velocity filed. Yet the intensive computational requirements of PIV limit its usage almost exclusively to off-line processing, analysis and modelling. This paper proposes hardware implementation of the cross-correlation algo...

FPGA-Based Real-Time Digital Simulation

1 – This paper is an effort to develop an FPGAbased real-time digital simulator. FPGA is used instead of parallel processors to simulate electromagnetic transients in power systems. A sample single-phase test systems was used to examine the principle. The mathematical model for the power system under consideration is implemented and simulated using Xilinx ISE 4.2 software and ModelSim simulator.

An FPGA-Based Real-Time Event Sampler

This paper presents the design and FPGA-implementation of a sampler that is suited for sampling real-time events in embedded systems. Such sampling is useful, for example, to test whether real-time events are handled in time on such systems. By designing and implementing the sampler as a logic analyzer on an FPGA, several design parameters can be explored and easily modified to match the behavi...

Laser Doppler Velocimetry