A nation's correction level develops in direct proportion to the nation's level. But the correctional principle does not suit our actuality. Since revival, our nation's correctional organization has been falling behind the other administrative organ's result of developmental reorganization. Nowadays, correction business is greatly increasing day by day and a second offense never decreased. Therefore correction administrative business' professional and effectual promotion needs increasingly. But now our nation's correction bureau is existing as a domestic shape of the ministry of justice which only is a assistance organ of the minister of justice. As a result, it is appeared that the difficulty of command and control in perfect order, the subordination of prosecutor, and correction civil servant's depressing the morale of the troops and so on. This study till now shows these theoretical problems at various literature but actually there was not smoothly allusion that how is the correction civil servant's thought who is charging with the correction business. Accordingly, I grasped the actual conditions for the development of correction administrative to correction civil servants who work at correction facility in the whole land's 46 sites and I understood what is necessary for this. As a result for the development of correction administrative, I knew that the modernization of correction facility, the independence of correction office, and the increment of correction facility are immediate. If the development of correction administrative is not, a criminal's social comeback is difficult. So the damage returns again a good general citizens. Consequently, now theoretically or actually the independence of correction service is not optional but indispensable. Any society, from the shady spot where has to advance for the first time we can say being advanced.

본 논문은 저가형 GPS 수신 모듈에 DGPS 서비스를 적용하기 위한 방안으로 NMEA GPGSV 데이터의 위성 배치 정보에 포함된 위성 앙각과 방위각으로 관측 행렬을 구성한 후, 거리기반 보정정보를 위치영역으로 투영하여 기 산출된 위치 오차 벡터를 수정하는 방안을 제시하였다. 저가형 수신기인 U-blox LEA-5H 모델의 출력 데이터에 제안한 알고리즘을 적용한 결과 주 활동 시간인 낮 시간에 수평 오차 RMS를 1.8m에서 1m 이내로 줄였으며, 수직 정확도는 RMS 5.8m에서 1.4m로 75% 향상시킴을 확인하였다. 본 논문에서 제안하는 방식은 하드웨어의 변경없이 소프트웨어만으로 저가형 GPS의 성능을 DGPS 수준으로 향상시키는 기법이므로, 소비자와 제조사의 부담을 경감시켜 향후 제공될 고정밀 측위 서비스 인프라의 활성화에 기여할 수 있을 것으로 기대된다.