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    • 3. 发明申请
    • Water acoustic coherently communication system and signal processing method having high code rate, low probability of error
    • 水声相干通信系统和信号处理方法具有码率高,误码率低的特点
    • US20050088916A1
    • 2005-04-28
    • US10500328
    • 2002-05-28
    • Weiqing ZhuMin ZhuChanghong WangFeng Pan
    • Weiqing ZhuMin ZhuChanghong WangFeng Pan
    • H04B13/02H04B11/00
    • H04B13/02
    • The present invention relates to a method and a system of a high code speed low error probability underwater acoustic coherent communication for underwater transferring instruction, data and image. The communication system includes a host machine installed on a mother ship or a main control underwater vehicles A and a guest machine installed on an underwater vehicle B, wherein the host machine comprises an electronic subassembly, a transducer and a receiving line array which is vertically deployed and consists of more than two hydrophones, and the guest machine comprises an electronic subassembly and a transmitting/receiving transducer. The signal processing method of the present invention is based on the joint technology of the space diversity, the self-optimized adaptive decision feedback equalizer and self-optimized adaptive phase tracker so as to overcome the affection of motion of the channel and the vehicles, such that the received signal could be quite close to the transmitted signal, and the bit error probability is low.
    • 本发明涉及用于水下传送指令,数据和图像的高码速低误差概率水下声相干通信的方法和系统。 通信系统包括安装在母舰或主控水下航行器A上的主机,以及安装在水下航空器B上的客机,其中主机包括垂直展开的电子组件,换能器和接收线阵列 并且由两个以上的水听器组成,并且客机包括电子组件和发送/接收换能器。 本发明的信号处理方法是基于空间分集的联合技术,自优化的自适应判决反馈均衡器和自优化的自适应相位跟踪器,以克服信道和车辆的运动的影响, 接收到的信号可能非常接近发射信号,并且位错误概率低。
    • 4. 发明授权
    • Method and system for measuring flow layer velocities using correlation velocity measuring sonar
    • 使用相关速度测量声纳测量流层速度的方法和系统
    • US07720629B2
    • 2010-05-18
    • US10549199
    • 2003-12-12
    • Weiqing ZhuChanghong Wang
    • Weiqing ZhuChanghong Wang
    • G01S13/00G01S15/00G01P5/00G01F1/66
    • G01S15/586G01P3/66G01P3/80G01P5/24G01S15/52G01S15/60
    • The present invention discloses a method and a system for measuring flow layer velocities using correlation velocity measuring sonar. The present invention provides a new theoretical expression for fluid medium sonar array temporal and spatial correlation function, the velocities of each flow layer are derived by fitting experimental data and a theoretical function, or fitting absolute value operated and localized experimental data and a theoretical function. The fluid medium sonar array temporal and spatial correlation function of the present invention is succinctly expressed by Kummer function, and well coincided with the experiments. This function is applicable not only to far field region, i.e. planar wave region, but also Fraunhofer region, i.e. spherical wave region. The present invention has the merits of high measurement accuracy, small calculation load, good robustness and fast convergence.
    • 本发明公开了一种使用相关速度测量声纳测量流层速度的方法和系统。 本发明提供了流体介质声纳阵列时空相关函数的新理论表达式,通过拟合实验数据和理论函数,或拟合绝对值操作和局部化实验数据和理论函数得出每个流层的速度。 本发明的流体介质声纳阵列时空相关函数由Kummer函数简洁表达,与实验吻合良好。 该功能不仅适用于远场区域,即平面波区域,也可应用于弗劳恩霍夫区域,即球面波段。 本发明具有测量精度高,计算负荷小,鲁棒性好,收敛快等优点。
    • 5. 发明申请
    • Method and system for measuring flow layer velocities using correlation velocity measuring sonar
    • 使用相关速度测量声纳测量流层速度的方法和系统
    • US20070129910A1
    • 2007-06-07
    • US10549199
    • 2003-12-12
    • Weiqing ZhuChanghong Wang
    • Weiqing ZhuChanghong Wang
    • G01S15/58G01P5/24
    • G01S15/586G01P3/66G01P3/80G01P5/24G01S15/52G01S15/60
    • The present invention discloses a method and a system for measuring flow layer velocities using correlation velocity measuring sonar. The present invention provides a new theoretical expression for fluid medium sonar array temporal and spatial correlation function, the velocities of each flow layer are derived by fitting experimental data and a theoretical function, or fitting absolute value operated and localized experimental data and a theoretical function. The fluid medium sonar array temporal and spatial correlation function of the present invention is succinctly expressed by Kummer function, and well coincided with the experiments. This function is applicable not only to far field region, i.e. planar wave region, but also Fraunhofer region, i.e. spherical wave region. The present invention has the merits of high measurement accuracy, small calculation load, good robustness and fast convergence.
    • 本发明公开了一种使用相关速度测量声纳测量流层速度的方法和系统。 本发明提供了流体介质声纳阵列时空相关函数的新理论表达式,通过拟合实验数据和理论函数,或拟合绝对值操作和局部化实验数据和理论函数得出每个流层的速度。 本发明的流体介质声纳阵列时空相关函数由Kummer函数简洁表达,与实验吻合良好。 该功能不仅适用于远场区域,即平面波区域,也可应用于弗劳恩霍夫区域,即球面波段。 本发明具有测量精度高,计算负荷小,鲁棒性好,收敛快等优点。
    • 6. 发明授权
    • Method and system for measuring the velocity of a vessel relative to the bottom using velocity measuring correlation sonar
    • 使用速度测量相关声纳来测量船舶相对于底部的速度的方法和系统
    • US07133327B2
    • 2006-11-07
    • US10549196
    • 2003-12-12
    • Weiqing ZhuChanghong Wang
    • Weiqing ZhuChanghong Wang
    • G01S15/60
    • G01S15/60
    • A method and a system for measuring the velocity of a vessel relative to the bottom using a velocity measuring correlation sonar are disclosed. The present invention provides a new theoretical expression for the bottom medium sonar array temporal and spatial correlation function. The velocity of the vessel relative to the bottom is derived by fitting experimental data to a theoretical function. The bottom medium sonar array temporal and spatial correlation function of the present invention is succinctly expressed in zero-rank Bessel function, and well coincided with experiments. The function is applicable not only to far field region, i.e. planar wave region, but also to Fraunhofer region, i.e. spherical wave region. Transmit transducers and receive transducers are multistatic in the velocity measuring correlation sonar of the present invention, so the transmit beam width and the receive beam width can be selected reasonably. The present invention is applicable to measuring the velocity of the vessel relative to the bottom with high measurement accuracy, small calculation load, good robustness and fast convergence.
    • 公开了一种用于使用速度测量相关声纳来测量船舶相对于底部的速度的方法和系统。 本发明为底部介质声纳阵列的时间和空间相关函数提供了新的理论表达。 通过将实验数据拟合为理论函数,导出容器相对于底部的速度。 本发明的底部介质声纳阵列时空相关函数简洁地表示为零级贝塞尔函数,与实验吻合良好。 该功能不仅适用于远场区域,即平面波区域,也适用于弗劳恩霍夫区域,即球面波段。 发射传感器和接收换能器在本发明的速度测量相关声纳中是多状态的,因此可以合理地选择发射波束宽度和接收波束宽度。 本发明适用于测量精度高,计算负荷小,鲁棒性好,快速收敛的船舶相对底部的速度。