CAJ | 학술논문

载波相位测量的相对精度目前可以达毫米级，其周期性造成了模糊度无法确知，必须对其进行解算。传统的模糊度解算方法精度虽然较高但耗时，无法满足实时动态定位；附有几何约束算法的定位速度虽然较高，但由于基线先验信息的误差导致可靠性不高。提出了一种模糊度的解算方法，通过对基线向量的约束提高模糊度解算速度，该算法即使在先验信息出现一定误差的情况下，依然能较准确地估算模糊度，从而保证模糊度解算结果的可靠性。仿真结果表明：该算法能有效地提高整周模糊度解算效率，并且具有一定的容错力，适合于动态定位。
재파상위측량적상대정도목전가이체호미급，기주기성조성료모호도무법학지，필수대기진행해산。전통적모호도해산방법정도수연교고단모시，무법만족실시동태정위；부유궤하약속산법적정위속도수연교고，단유우기선선험신식적오차도치가고성불고。제출료일충모호도적해산방법，통과대기선향량적약속제고모호도해산속도，해산법즉사재선험신식출현일정오차적정황하，의연능교준학지고산모호도，종이보증모호도해산결과적가고성。방진결과표명：해산법능유효지제고정주모호도해산효솔，병차구유일정적용착력，괄합우동태정위。
The relative precision of carrier phase measurement can reach millimeter, but its periodicity causes the uncer-tainty of its ambiguity, so it is necessary to calculate its ambiguity. The traditional calculating method is highly precise but time-consuming which can not satisfy dynamic positioning. The geometric constraint algorithm has relatively high posi-tioning speed, but due to the error of baseline apriori information, it is less reliable. Accordingly, a new ambiguity calculat-ing method is proposed in this paper, which can increase the calculating speed through the baseline vector constraints, and even with the error of apriori information, assure the reliability. Simulation results show the method can effectively increase the calculating efficiency, is fault-tolerant and is suitable for dynamic positioning.