CAJ | 학술논문

地籍测量过程中具有静态、可调平和转位的特点，在静基座条件下，捷联惯性测量系统（ SIMS）粗对准的失准角与卡尔曼滤波精对准的失准角相当，但是解析粗对准的方位角误差较大。本文在建立SIMS静基座粗对准误差方程的基础上，对影响解析粗对准精度的误差因素进行分析，提出利用光纤陀螺寻北仪进行四位置转位寻北的方法来估算方位角的精度，以提高方位角的估计精度。仿真结果表明，该方法可以有效地提高对准精度，适合于静基座外界干扰小的捷联式惯性测量系统上，在一定程度上可以直接作为对准的结果用于地籍测量定位解算。
지적측량과정중구유정태、가조평화전위적특점，재정기좌조건하，첩련관성측량계통（ SIMS）조대준적실준각여잡이만려파정대준적실준각상당，단시해석조대준적방위각오차교대。본문재건립SIMS정기좌조대준오차방정적기출상，대영향해석조대준정도적오차인소진행분석，제출이용광섬타라심북의진행사위치전위심북적방법래고산방위각적정도，이제고방위각적고계정도。방진결과표명，해방법가이유효지제고대준정도，괄합우정기좌외계간우소적첩련식관성측량계통상，재일정정도상가이직접작위대준적결과용우지적측량정위해산。
Cadastral surveying process has features of static, adjustable and translocation.In the stationary base conditions, the mis-alignment angles of coarse alignment of Inertial Measurement System ( SIMS) parallel fairly with the misalignment angles of fine align-ment of Kalman Filter, but the azimuth error of coarse alignment is larger.On the basis of establishing the error equations of analytic coarse alignment for SIMS on stationary base, this paper analyzes the factors that affect the precision of coarse alignment error, puts forward to using the method of four position found north to estimate the accuracy of the azimuth, to improve the estimation accuracy of azimuth.The simulation results show that compared with the coarse alignment result, this method can effectively improve the alignment accuracy, suitable for the stationary base and small interference of SIMS, which, to a certain degree, can be directly used as a result of the alignment of cadastral surveying positioning algorithm.