CAJ | 학술논문

提出了一种载波双差动态相对定位模型，并将其应用于车辆的导航定位中。首先，利用MW组合固定双差宽项组合的模糊度，再联立L1的观测方程固定双差观测值L1的模糊度，回代到L1的观测方程中求解出站的三维坐标。由于基线长度较短，双差观测值可以消除大部分误差。 L1观测值的噪声较小，一旦固定了L1的模糊度，单历元就可以快速解算出测站之间相对位置的三维坐标。分别利用GPS数据与北斗数据进行解算，所得的解算精度相当，初始模糊度固定时间均短于5min，定位精度为厘米级。基于宽巷模糊度约束的GPS/BDS动态相对定位模型可以快速固定L1基础模糊度，从而实现高精度快速相对定位。该模型可以应用于实时车辆动态相对定位。
제출료일충재파쌍차동태상대정위모형，병장기응용우차량적도항정위중。수선，이용MW조합고정쌍차관항조합적모호도，재련립L1적관측방정고정쌍차관측치L1적모호도，회대도L1적관측방정중구해출참적삼유좌표。유우기선장도교단，쌍차관측치가이소제대부분오차。 L1관측치적조성교소，일단고정료L1적모호도，단역원취가이쾌속해산출측참지간상대위치적삼유좌표。분별이용GPS수거여북두수거진행해산，소득적해산정도상당，초시모호도고정시간균단우5min，정위정도위전미급。기우관항모호도약속적GPS/BDS동태상대정위모형가이쾌속고정L1기출모호도，종이실현고정도쾌속상대정위。해모형가이응용우실시차량동태상대정위。
A double difference dynamic relative positioning model with carrier phases is presented and applied to the vehicle navigation and positioning.First, MW( Melbourne-Wübbena) combina-tion is used to fix the ambiguity of double difference wide lane observations.Then, L1 observation equation is adopted to fix the ambiguity of L1 double difference observations.Finally, the results are substituted to the observation equation to solve the three-dimensional coordinates of the station.Since the baseline is short, double difference observations can eliminate most of the errors observed val-ues.The noise of the L1 observation is small.Once the ambiguity of L1 is fixed, single epoch can quickly calculate the three-dimensional coordinates of the relative position between the stations.The GPS( global positioning system) data and the BDS( Beidou navigation satellite system) data are sepa-rately used, and the obtained precisions are approximate.The initial ambiguity can be fixed less than 5 min, and the positioning accuracy is at centimeter level.The dynamic relative positioning model of GPS/BDS based on wide lane ambiguity can quickly fix the basic ambiguity of L1 , achieving high accuracy and fast dynamic relative positioning.This model can be applied to real-time vehicle dy-namic relative positioning.