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  1. No Access

    Article

    Path Planning Method for Mobile Robot Based on a Hybrid Algorithm

    This paper proposes a hybrid algorithm to complete path planning and dynamic obstacle avoidance in complicated maps for mobile robot. The hybrid algorithm (A*-DWA-B) combines the advantages of A* algorithm and...

    Zhaozhen Jiang, Wenlong Wang, Wenqi Sun… in Journal of Intelligent & Robotic Systems (2023)

  2. No Access

    Article

    Turning depths of internal tides in the South China Sea inferred from profile data

    Theoretically, propagating internal tides in the ocean may reflect at turning depths, where buoyancy frequencies equal tidal frequencies, before colliding with the air-sea interface or rugged bottom topography...

    Kun Liu, Lianglong Da, Wuhong Guo, Chenglong Liu, Junchuan Sun in Acta Oceanologica Sinica (2022)

  3. Article

    Open Access

    Improving the thermal structure predictions in the Yellow Sea by conducting targeted observations in the CNOP-identified sensitive areas

    Targeted observation is an appealing procedure for improving model predictions. However, studies on oceanic targeted observations have been largely based on modeling efforts, and there is a need for field vali...

    Kun Liu, Wuhong Guo, Lianglong Da, **gyi Liu, Huiqin Hu, Baolong Cui in Scientific Reports (2021)

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  4. No Access

    Article

    Identification of the sensitive area for targeted observation to improve vertical thermal structure prediction in summer in the Yellow Sea

    The sensitive area of targeted observations for short-term (7 d) prediction of vertical thermal structure (VTS) in summer in the Yellow Sea was investigated. We applied the Conditional Nonlinear Optimal Pertur...

    Huiqin Hu, **gyi Liu, Lianglong Da, Wuhong Guo, Kun Liu… in Acta Oceanologica Sinica (2021)

  5. No Access

    Article

    Ambient noise spectral properties in the north area of **sha

    Ambient noise is very important in the prediction system of a sonar performance, because it determines the detection ranges always in a passive sonar and usually in an active sonar. In the uncertainty issue fo...

    Lianglong Da, Chao Wang, Mei Han, Lin Zhang in Acta Oceanologica Sinica (2014)

  6. No Access

    Chapter and Conference Paper

    A Method for Range Estimation Based on Image Processing

    Striations image generated in target localization algorithm using a guide source (GTL algorithm) is always blurred and indistinct because of noise pollution. Range estimation can not be realized. In order to a...

    Qinghai He, Lianglong Da, Guojun Xu in Proceedings of the 2012 International Conf… (2013)

  7. No Access

    Chapter and Conference Paper

    Simulation Research on the Effect of Thermocline on Underwater Sound Propagation

    The thermocline has an important influence on sound propagation or underwater acoustic detection in shallow water. The beam-displacement ray-mode theory is used to analyze the effect of thermocline on underwat...

    Lin Zhang, Lianglong Da, Guojun Xu in System Simulation and Scientific Computing (2012)