الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Measurement of accuracy and high quality are necessary for guiding successful laboratory studies in fundamental and applied coastal engineering research. Coastal engineers depend on four corresponding techniques to deal with the complex fluid flow systems typical of many costal projects. These techniques are field measurement, laboratory measurement, observations, and computational and mathematical tools. Successful laboratory studies depend on choosing suitable instrumentation to acquire essential measurements. There are five main parameters affect the measurement accuracy in coastal laboratory, these are: Bed Morphology (BM), distance from paddle, atmospheric conditions, water characteristics and reflection from obstacles (structures or flume bounders). This research introduces an experimental setup to compare between two different measuring techniques: an existing one and another proposed for measuring flume wave characteristics in coastal hydrodynamic laboratory. The system analysis is based on using, time-series analysis, frequency-domain analysis, wave statistics in the time-domain, discrete wavelet decomposition, and statistics. The existing technique uses a ZigBee wireless module, whereas the proposed setup uses NRF24l01+ transceiver wireless module using an e-Tape liquid level sensor. The two measuring modules systems are used to measure the above-mentioned five characterizing parameters at Coastal Research Institute, (CORI) wave flume laboratory. The study shows that the proposed setup improves the accuracy of measurement and decreases the environmental noise effect. In addition, the proposed setup system successfully capture data along the wave flume and improves the measurement accuracy, reduces the error by 50%. It uses Gaussian FrequencyShift Keying (GFSK ( modulation that has no multiple tracks and interventions. Moreover, it is cheaper than the ZigBee module and is suitable to measure waves with paddle repetition frequency up to 30 rpm.