A new algorithm for determining optimal accelerometer locations is proposed by using a frequency-domain Hankel matrix which is much simpler to construct than a time-domain Hankel matrix. The algorithm was examined through simulation studies by comparing the outcomes with those from other available methods. To compare and analyze the results from different methods, a dynamic analysis was carried out under seismic excitation and acceleration data were obtained at the selected optimal sensor locations. Vibrational amplitudes at the selected sensor locations were determined and those of all the other degrees of freedom were determined by using a spline function. MAC index of each method was calculated and compared to look at which method could determine more effective locations of accelerometers. The proposed frequency-domain Hankel matrix could determine reasonable selection of accelerometer locations compared with the others.

1. 서 론
 2. 주파수영역의 Hankel Matrix와 기존 센서최적위치 결정 이론
  2.1 Hankel Matrix
  2.2 Fisher Information Matrix
  2.3 LG Method
  2.4 BHM Method
 3. 기존 방법과 주파수영역 Hankel matrix의적용 결과 비교
  3.1 적용 절차
  3.2 MAC 지수를 활용한 결과 검증
  3.3 단순보 예제
  3.4 2경간 거더교 예제
 3. 결 론
 References

• 강성헌(인하대학교 토목공학과 석사과정) | Sungheon Kang
• 신수봉(인하대학교 사회인프라공학과 교수) | Soobong Shin 교신저자