System for registration and analyses echo sounder data.

                                  Nikolayev Alexander

                  Chief Laboratory of Fisheries Hydroacoustic TINRO
                   4, Shevchenko alley, Vladivostok, 690600, RUSSIA
                              E-mail: root@tinro.marine.su

     Are considered technical and software on the basis of the personal computer for 
accumulation  of the  results acoustic  survey and  subsequent secondary  processing. 
The complex  is independent  and can be  connected to  acoustic systems of  various 
types. The geographical binding of measurements is made with use of system GPS. 
     Functions of  system in scale of  real time are  the display colour echogram  on 
the screen  of the  monitor, mode of  preservation echograms  in the given  range of 
depths, choice from the  screen of the monitor interesting for fisherman  of fragments 
echogram  or separate  signals adhered  to  a geographical  situation, kind  of  object 
fishing, results of fishing.
     The  realized mode  echo integrator  allows to  make  works by  a quantitative 
estimation  of  number  and  biomass  including  in  near-bottom layers,  using  the 
developed algorithm  of bottom detection.  The opportunity of  thematic processing of 
the acoustic data, and  also connection of the software packages of processing  of the 
additional information on surveyed area, for example, results of fishing. 
     The software are realized in system  MS DOS and now develop for WINDOWS 
95.  As an  illustrative material  the results  of acoustic  measurements with  use  of 
considered system are used.