Method and apparatus for using transfer learning to locate igneous carbonate rock-type rare earth deposits

    公开(公告)号:US20240378883A1

    公开(公告)日:2024-11-14

    申请号:US18197082

    申请日:2023-05-14

    Abstract: The present application proposes a method and apparatus for transfer learning-based localization of igneous carbonate-hosted rare earth mineralization. The technology relates to electromagnetic exploration and includes obtaining exploration data for electric, magnetic, seismic, and gravity methods in the target area. Transfer learning-based localization is applied to the electric, magnetic, seismic, and gravity exploration data to determine the cross-sectional map corresponding to the anomalous position of igneous carbonate-hosted rare earth mineralization in the target area. Feature decomposition dimensionality reduction, feature enhancement, and weighted fusion processing are applied to the cross-sectional map, followed by segmentation of the igneous carbonate-hosted rare earth mineralization geological body in the fused image to obtain the spatial distribution of the detection target. The integrated analysis of multi-source geophysical data using images improves the accuracy of identification and localization of igneous carbonate-hosted rare earth mineralization.

    Method for Suppressing Airborne Transient Electromagnetic In-Band Vibration Noise

    公开(公告)号:US20200348438A1

    公开(公告)日:2020-11-05

    申请号:US16402261

    申请日:2019-05-03

    Abstract: Disclosed in the present invention is a method for suppressing airborne transient electromagnetic in-band vibration noise, comprising: dividing the data after current turn-off into two segments according to whether the useful signal is attenuated to the system noise level: the segment A is the useful signal segment, and the segment B is the pure noise segment; limiting the bandwidth of the data of the segment B according to the frequency range of the in-band noise, and labeling the result as BL; training a neural network using the BL, utilizing the well trained neural network to predict the in-band vibration noise contained in the data of the segment A, and labeling the prediction result as PNA; and subtracting the PNA from the data of the segment A to suppress the in-band vibration noise contained in the data of the segment A.

    Method and apparatus of forward link and reverse link power control in a cellular wireless communication system
    13.
    发明授权
    Method and apparatus of forward link and reverse link power control in a cellular wireless communication system 有权
    蜂窝无线通信系统中前向链路和反向链路功率控制的方法和装置

    公开(公告)号:US07480516B1

    公开(公告)日:2009-01-20

    申请号:US10975000

    申请日:2004-10-28

    CPC classification number: H04W52/56 H04B1/712 H04W52/143

    Abstract: A cellular wireless communication system includes base transceiver stations and mobile stations that operate with a closed loop power control. The mobile tracking is performed based on the lock in and lock out thresholds by the base transceiver stations. A forward link power control bit is decoded from the reverse channel. An additional threshold is introduced for determining at the base transceiver station whether the decoded forward link power control bit is valid or invalid. The finger energies obtained from a finger processor formed by a RAKE receiver of the base transceiver station are compared to the additional validation threshold. The additional validation threshold is independent of the tracking thresholds and usually greater than them. The validation performance may not be affected by low signal/noise. The forward link traffic channel gain of the base transceiver station is controlled in response to the invalidity of the decoded forward power control bit. The decoding of the reverse link power control bit and the validity determination of the decoded reverse link power control bit are performed by similar methods to those of the forward link power control bit. With improved validation methods, the forward link and reverse link transmission power is more accurately controlled.

    Abstract translation: 蜂窝无线通信系统包括基站收发台和利用闭环功率控制工作的移动站。 移动跟踪基于基站收发台的锁定和锁定阈值来执行。 前向链路功率控制位从反向信道解码。 引入额外的阈值,用于在基站收发台确定解码的前向链路功率控制位是有效还是无效。 从由基地收发台的RAKE接收机形成的手指处理器获得的手指能量与附加确认阈值进行比较。 额外的验证阈值与跟踪阈值无关,通常大于它们。 验证性能可能不受低信号/噪声的影响。 响应于解码的正向功率控制位的无效性,控制基站收发器的前向链路业务信道增益。 反向链路功率控制位的解码和解码的反向链路功率控制位的有效性确定通过与前向链路功率控制位的方法类似的方法来执行。 通过改进的验证方法,更准确地控制前向链路和反向链路传输功率。

    Ground-Air TEM Transverse Magnetic Polarization Field Detection Method and System, and Forward Modeling Method and Device

    公开(公告)号:US20240302560A1

    公开(公告)日:2024-09-12

    申请号:US18621102

    申请日:2024-03-29

    CPC classification number: G01V3/17 G01V3/38

    Abstract: The embodiment of the invention provides a ground-air TEM transverse magnetic polarization field detection method and system, and a forward modeling method and device. The ground-air TEM transverse magnetic polarization field detection method comprises: adopting an umbrella-shaped source as a ground emission source, wherein the umbrella-shaped source is an emission source device comprising a plurality of emission line sources, the lengths of the emission line sources are the same, one end of each emission line source is connected to the center of the umbrella-shaped source, the emission line sources are arranged in an umbrella rib mode, current directions diverge outwards from the center along each emission line source, and included angles between adjacent emission line sources are identical; and using the umbrella-shaped source to detect a ground-air transient electromagnetic field, and obtaining the horizontal magnetic field component data of the umbrella-shaped source, thus realizing the observation of a ground-air TEM transverse magnetic polarization field. The above technology of the invention can cover the shortage of a ground-air TEM in high-resistance target detection.

    Scheme of retaining LTE connection during circuit switch fall back
    16.
    发明授权
    Scheme of retaining LTE connection during circuit switch fall back 有权
    在电路交换机中保持LTE连接的方案落后

    公开(公告)号:US09338699B2

    公开(公告)日:2016-05-10

    申请号:US14107010

    申请日:2013-12-16

    CPC classification number: H04W36/0022 H04W76/19 H04W76/25

    Abstract: The present solution enables a packet switched connection to be temporarily released at the wireless terminal for supporting voice calls over a Circuit-Switched (CS) Fallback. The packet switched connection of the LTE core network retained for a pre-defined period of time during the CSFB session allowing the user to quickly switch back to the packet switched connection when the CSFB session is shorter than the predefined period or when the voice call CSFB attempt fails. This is accomplished by the introduction of a timed buffer to control the length of time the LTE core network connection and wireless context information will be retained.

    Abstract translation: 本解决方案使得能够在无线终端处暂时释放分组交换连接,以通过电路交换(CS)回退来支持语音呼叫。 在CSFB会话期间,LTE核心网的分组交换连接保持预定的时间段,允许用户在CSFB会话比预定时间段短时或当语音呼叫CSFB时快速切换回分组交换连接 尝试失败。 这是通过引入定时缓冲器来实现的,以控制LTE核心网络连接和无线上下文信息将被保留的时间长度。

    Scheme of Retaining LTE connection during Circuit Switch Fall Back
    17.
    发明申请
    Scheme of Retaining LTE connection during Circuit Switch Fall Back 有权
    在电路交换机回退期间保留LTE连接的方案

    公开(公告)号:US20140177592A1

    公开(公告)日:2014-06-26

    申请号:US14107010

    申请日:2013-12-16

    CPC classification number: H04W36/0022 H04W76/19 H04W76/25

    Abstract: The present solution enables a packet switched connection to be temporarily released at the wireless terminal for supporting voice calls over a Circuit-Switched (CS) Fallback. The packet switched connection of the LTE core network retained for a pre-defined period of time during the CSFB session allowing the user to quickly switch back to the packet switched connection when the CSFB session is shorter than the predefined period or when the voice call CSFB attempt fails. This is accomplished by the introduction of a timed buffer to control the length of time the LTE core network connection and wireless context information will be retained.

    Abstract translation: 本解决方案使得能够在无线终端处暂时释放分组交换连接,以通过电路交换(CS)回退来支持语音呼叫。 在CSFB会话期间,LTE核心网的分组交换连接保持预定的时间段,允许用户在CSFB会话比预定时间段短时或当语音呼叫CSFB时快速切换回分组交换连接 尝试失败。 这是通过引入定时缓冲器来实现的,以控制LTE核心网络连接和无线上下文信息将被保留的时间长度。

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