CAJ | 학술논문

速度信息与位置信息一样，也是非常重要且应用十分广泛的信息。本文针对传统的 GPS 测速方法的不足，借鉴时间基线模型的思想，采用时间基线法对 BDS 和 GPS 测速进行研究，分别采用了 BDS 和 GPS 观测数据进行测试，结果表明：BDS 与 GPS 速度解算结果精度相当，三个方向的测速精度均在亚厘米级，两者数据的融合解算能提高精度；采用广播星历的时间基线法求解的 GPS 速度与 PPP 解算的结果差别不大。由于该方法能够同时探测并修复周跳，所以不受周跳影响。
속도신식여위치신식일양，야시비상중요차응용십분엄범적신식。본문침대전통적 GPS 측속방법적불족，차감시간기선모형적사상，채용시간기선법대 BDS 화 GPS 측속진행연구，분별채용료 BDS 화 GPS 관측수거진행측시，결과표명：BDS 여 GPS 속도해산결과정도상당，삼개방향적측속정도균재아전미급，량자수거적융합해산능제고정도；채용엄파성력적시간기선법구해적 GPS 속도여 PPP 해산적결과차별불대。유우해방법능구동시탐측병수복주도，소이불수주도영향。
Same to position,velocity is also very important and widely used.In this research,based on time-relative theo-ry,velocity estimation based on BDS and GPS is studied.The numerical results show that the velocity estimation accuracy is mm level and similar for GPS and BDS.The integration of GPS and BDS can improve the velocity estimation accuracy.The rela-tive position change by accumulating the velocity is similar to that from PPP.As the method can detect and correct cycle slip,it will not be affected by cycle slip.