Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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Development of Biotelemetry Method by Combining the SSBL Method and the Pinger Synchronizing Method (2) - Evaluation for Precision of System -

SSBL 방식과 핑거동기 방식을 조합한 바이오텔레메터리 방식의 개발 (2) -시스템의 정도 평가 -

  • Published : 2003.11.01
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Abstract

The new biotelemetry method and system that the installation and the treatment of equipment is convenient and the instantaneously detailed position of the fish attached the pinger is able to track comparatively easily had been developed, an availabilities of it were verified in water tank by using hydrophone and pinger. First of all, the receiving system for biotelemetry was calibrated so as to measure tracking of high precision or wide detection range. In the next place, the precision at narrow and wide beam array of receiving system by using hydrophone was investigated and the actual position was compared with measured hydrophone position. The mean standard deviations of the position by narrow beam array of receiving system were 6.4em in phase beam of fore-aft pair and 6.3em in starboard-port pair, and the wide beam array were 24em and 23em respectively. The precision of distance, position, and velocity at narrow beam array of receiving system by using pinger were investigated and the actual values were compared with measured values. The distance from receiving system to pinger was measured by the pinger synchronizing method, angle of direction of pinger was detected by the super short base line (SSBL) method. The three dimensional position of pinger to the receiving system was measured by combining of two kinds of methods (SPB method), the velocity of pinger was obtained with a differential of the three dimensional positions. The mean standard deviations of the distance by pinger synchronizing method in narrow beam array of receiving system was 1. 8 em, that of the position by SPB method was 7.7cm.

SPB방식과 시스템을 수조실험에서 검증하였다. 이상의 연구 성과를 정리하면 다음과 같다. 1) 핑거와 비슷한 펄스를 하이드로폰으로부터 발생시켜 수파기의 협빔과 광빔의 양빔 모드의 위상빔어레이 중심간 거리를 보정하여 전후, 좌우의 위상빔에 대한 위치측정 정도를 비교, 분석하였다. 측정위치오차는 협빔 모드의 전후위상빔에서 6.4cm, 좌우위상빔에서 6.3cm로 위치측정 정도는 고정도 이었으며, 광범 모드에서는 각각 24cm, 23cm로 협빔 모드보다 위치측정 정도는 4 배 정도 낮았다. 2) 핑거를 이미 계산된 위치로 이동시켜 핑거동기방식에 의한 거리정보와 SSBL 방식에 의한 방위정보를 자동, 연속으로 측정하였으며, 핑거동기 방식에 의한 핑거의 측정거리, SSBL. 핑거동기 바이오텔레메터리 방식에 의한 핑거의 측정위치, 핑거의 측정이동속도를 구해 기존의 값과 비교하여 새롭게 개발한 방식과 시스템의 유효성을 검증하였다. 핑거동기 방식에 의해 구한 핑거의 측정거리 오차는 1.8cm, SSBL. 핑거동기 바이오텔레메터리 방식에 의해 구한 핑거의 측정위치 오차는 7.7cm로 고정도로 측정이 기능하였으며, 핑거의 측정이동속도는 기존의 값에 대체적으로 일치하였다.

Keywords

References

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