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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Sunardi Mohd, A. Din, J. Hassan, R. Seman, N. |
| Copyright Year | 2007 |
| Description | Author affiliation: Electr. Eng. Dept., Univ. Ahmad Dahlan, Janturan (Sunardi) |
| Abstract | Furuno FQ-80 Scientific Echo Sounder can be performed on dual-frequency capabilities, 38 kHz and 120 kHz, as an individually or simultaneously. Measurement of target strength (TS) for Selar boops (Oxeye scad) had been deployed using FQ-80 on 228 dB and 236 dB of source level (SL) at low and high frequency, respectively. The fish were sited in the net cage at the bottom of the vessel. TS value, depth, and position (x-y-z) of single fish which detected at every ping at low and high frequency has been observed from recorded echogram using FQ-80 Analyzer. Fish TS detected at low and high frequency are ranging from -47.40 to -38.33 dB with the average of -44.49 dB and -45.19 to -42.76 dB with the average of -43.96 dB. Thus, fish TS detected at higher frequency is stronger than at lower frequency. |
| Starting Page | 1 |
| Ending Page | 3 |
| File Size | 540448 |
| Page Count | 3 |
| File Format | |
| ISBN | 9781424414345 |
| DOI | 10.1109/APACE.2007.4603925 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-12-04 |
| Publisher Place | Malaysia |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Transducers FQ-80 Sea measurements echo sounder Acoustic measurements Acoustics Frequency measurement Selar boops target strength Marine animals Backscatter |
| Content Type | Text |
| Resource Type | Article |
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