A comparison of 3 dimensional acoustic localization methods based on global optimization and neural networks

The past years there has been a significant increase in the popularity and commercial availability of consumer drones.

Aircraft Noise Shielding Assessment: The creation of a software tool to predict aircraft noise shielding

The amount of air traffic is increasing and cities become more and more populated. Since airports tend to be located close to or inside cities, an increasing amount of people suffer from aircraft noise pollution. More silent aircraft are needed to be able to reduce this noise pollution. One way to do this is through blocking the engine noise...

Developing a data based method to quantify the effects of flight track, aircraft weight and engine setting on the received aircraft noise levels

Airports in The Netherlands are subjected to tangent environmental laws to restrain pollution and noise nuisance. Amsterdam Airport Schiphol (AAS) is one airport dealing with this regulatory framework but nevertheless they are resolute to continue growth with respect to aircraft movements. To cope with the law related to aircraft noise, the...

Sediment classification using Sub-bottom profiler

Sub bottom profilers are commonly used as mapping tool for the seafloor and sub-bottom structure in the upper few meters of the seafloor. Their recent enhanced performance in terms of resolution adds the potential to classify the sediment layers as well. In this research, the seabed surface and sub layers classification are investigated using...

Infrasound source location: An automated method to estimate the location of infrasound sources as detected by microbarometer array recordings in the Netherlands over 2007

By recording infrasound signals one is able to listen to the sound of highly energetic events such as volcanoes, meteorites and the supersonic flight of aircraft, even if these occur hundreds of kilometres away. Recordings of infrasound signals are made using infrasound arrays, which can determine the incoming direction of the signals. In this...

Automatic detection of buried channel deposits using high resolution laser altimetry data (FLI-MAP)

The formation of the current Rhine-Meuse delta has mainly taken place during the Holocene (the last 12,000 years). This period is characterised by avulsions that lead to sudden shifts in the location of river channels. The channel deposits left behind by abandoned rivers are often distinct sandy layers in the shallow sub-surface, called buried...

Sediment characterization by geo-acoustic inversion of marine seismic data received on a towed hydrophone array

Glacier Surface Analysis. Airborne Laser Scanning for monitoring glaciers and crevasses