Abstract: The real time gathering and display system, EchoViewer, is designed for the super broadband sea-bottom profile instrument. The characteristic of super broad-band and multi-frequency synthesizing, as well as the compatibility with other system, have been considered during the software design. The TVG arithmetic and the seabed track arithmetic have been achieved according to the characteristic of propagation of the sonic wave in seabed. The multi-frequency synthesization has been realized by combining the remote sensing image processing technique. The abilities of system control, data gathering, GPS navigation, map display and data playback and process of the system have been demonstrated by the successful application in many tests and the survey of 908 project.

Key words: super broad-band sea-bottom profile instrument, sea-bottom superficial stratum, software design, map display, data processing