共 50 条
- [23] THE FREQUENCY-SPECTRUM OF ECHO AMPLITUDE FLUCTUATIONS AT ACOUSTIC SOUNDING OF THE ATMOSPHERE IZVESTIYA AKADEMII NAUK SSSR FIZIKA ATMOSFERY I OKEANA, 1989, 25 (04): : 367 - 373
- [24] RESULTS OF HIGH-RESOLUTION ECHO-SOUNDING OF LAKE VICTORIA JOURNAL OF AFRICAN EARTH SCIENCES, 1990, 11 (1-2): : 25 - 32
- [25] SONAR - A NEW DIAGNOSTIC ECHO-SOUNDING TECHNIQUE IN OBSTETRICS AND GYNAECOLOGY PROCEEDINGS OF THE ROYAL SOCIETY OF MEDICINE-LONDON, 1962, 55 (08): : 637 - 638
- [27] Parametric amplifiers with a variable reactance for amplifying and processing mechanical and acoustic oscillations in seismic and echo-sounding devices Radiotekh Elektron, 2 (218-225):
- [29] Variable bandwidth filter for multibeam echo-sounding bottom detection OCEANS '04 MTS/IEEE TECHNO-OCEAN '04, VOLS 1- 2, CONFERENCE PROCEEDINGS, VOLS. 1-4, 2004, : 1154 - 1158
- [30] Bottom sediment's identification as an inverse problem of echo-sounding APEIE-98: 1998 4TH INTERNATIONAL CONFERENCE ON ACTUAL PROBLEMS OF ELECTRONIC INSTRUMENT ENGINEERING PROCEEDINGS, VOL 1, 1998, : 282 - 285