THE 5-SECOND TRICK FOR HYDROGRAPHIC SURVEY IN BANGLADESH

Info less than 3dB can not be used because it determines the utmost profiling choice of the devices. It could be noticed that SNR is near 0 dB past 10m-12m depth. Again, through slack drinking water, the cut off line for 3dB extends outside of as a result of presence of large turbidity during the water columns.The rise of latest Digital systems –