A SECRET WEAPON FOR HYDROGRAPHIC SURVEY IN DHAKA

Facts a lot less than 3dB can not be applied mainly because it decides the utmost profiling choice of the devices. It might be witnessed that SNR is near 0 dB further than 10m-12m depth. Once again, in the course of slack water, the cut off line for 3dB extends further than a result of the existence of high turbidity while in the water columns., is