Khan, Dr. Md. Ziaur RahmanHossain, Navan TanjeemKhan, Rahat MahmoodRahman, Saifur2017-08-222017-08-2220172017ID 13310001ID 13121084ID 13121076http://hdl.handle.net/10361/8427Cataloged from PDF version of thesis.Includes bibliographical references (page 51-54).This thesis report is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2017.In the era of modern technology, even today, the underwater surface perception and mapping is still a much vague subject. Many approaches have been carried out following the topic. In a third world country, like Bangladesh, where water body is very important part of communication, life gets hindered when visual aids are compromised during navigation. The thesis conducted works to design a system to perceive and map the underwater surface. An underwater ultrasonic piezoelectric transducer has been chosen depending on the range to be perceived. A module has been designed from scratch to excite the transducer via a microcontroller unit and supply distances for mapping of the underwater surface. A program has also been developed to map the distances into a terrain and hereby display the distances in the form of 3-dimensional surface.98 pagesenBRAC University thesis is protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.3DMFBThesis