Spectral patterns for the generation of unidirectional irregular waves

Abstract

The wave is a complex and important phenomenon for structures designs in the coastal zones and beaches. This paper presents a novel system for the generation of spectral patterns of unidirectional irregular waves in research laboratories. The system's control basic elements are a linear motor, a servo controller and a personal computer. The used main mathematical tools are a feed forward neural network, digital signal processing and statistical analysis. The research aim is to obtain a system of more accuracy and small response time. This behavior is interpreted, in marine hydraulics, as a fast calibration of experiments. The wave power spectrums are generated in a test channel of rectangular section with dimensions: length 12m; depth 40 cm; width 30 cm. © Springer-Verlag Berlin Heidelberg 2005.