Pemrosesan Sinyal Data Sub-bottom Profiler Substrat Dasar Perairan Selat Lembeh
Abstract: An accurate mapping
of ocean seabed is needed to answer the challenges faced by the marine
scientist today. Sub-bottom profiler present as one of the acoustics system
which used to describe the sediment layer profile of the ocean bottom, as well
as the thickness of the layer and the stratigraphy. The purpose of this
research is to describe the 2D profile and to determine the value of the
reflection coefficient of the sediment layers in Lembeh Strait, North Sulawesi.
The reflection coefficient is necessary to be analyzed related to the seabed
sediment grain size and type. The data acquisition carried out using Syqwest
Stratabox sub-bottom profiler with the frequency of 10 kHz. FFT signal
processing and bandpass filter are applied to relieve noise from main signals
as well as to get better results. The results of data processing show that
seafloor sediments have a value of the surface reflection coefficients which
ranged between 0.1168 until 0.7938 with type iron smooth sand.
Penulis: Steven Solikin, Henry
M. Manik, Sri Pujiyati, Susilohadi
Kode Jurnal: jptlisetrodd170359
