Acta Geodaetica et Cartographica Sinica ›› 2022, Vol. 51 ›› Issue (5): 762-771.doi: 10.11947/j.AGCS.2022.20200498

• Marine Survey • Previous Articles     Next Articles

Construction and verification of improved error model of MBES

LI Fan1,2, JIN Shaohua2, BIAN Gang2, CUI Yang2, TANG Yulin3, ZHANG Yonghou4   

  1. 1. Troops 92899, Ningbo 315300, China;
    2. Department of Hydrography and Cartography, Dalian Naval Academy, Dalian 116018, China;
    3. College of Electrical Engineering, Naval University of Engineering, Wuhan 430033, China;
    4. Chart Information Center, Tianjin 300450, China
  • Received:2020-10-12 Revised:2021-10-31 Online:2022-05-20 Published:2022-05-28
  • Supported by:
    The National Natural Science Foundation of China (Nos. 41876103;41576105)

Abstract: To evaluate the quality of MBES's data more accurately, an improved error model is derived that combines effects of echo detection methods and draft and heave correction errors, based on the constant gradient sound velocity tracking model and Rob Hare's classic error classification. The correctness of the improved model is verified through the decomposition and comparison of error sources and the comparison of the errors in the intersections; the example calculations show that the model can reduce the errors in the intersections of the CUBE surface by 2% compared with the Rob Hare model. The improved model considers more error factors, describes the error distribution law of measuring points more finely, and the error composition is more perfect. The improved model is helpful to find out the problem and strip the error source, analyze the magnitude of the error caused by each error source more accurately, and the research results provide theoretical basis and technical support for data quality control and data verification.

Key words: hydrographic survey, MBES, error model, error classification, error source analysis, CUBE

CLC Number: