ADAPTIVE DAMPING MAGNETIC FIELD SENSOR

    公开(公告)号:US20230069682A1

    公开(公告)日:2023-03-02

    申请号:US17461943

    申请日:2021-08-30

    申请人: Guoqiang XUE

    IPC分类号: G01R33/385 G01V3/40 G01V3/10

    摘要: This application provides an adaptive damping magnetic field sensor, including: a receiving coil, an adaptive damping matching resistance circuit, and an amplifying circuit; where the receiving coil is used for receiving an earth response signal generated by the earth under excitation of an emission source, and generating an induced voltage; the adaptive damping matching resistance circuit is used for receiving the induced voltage generated by the receiving coil and automatically matching a damping resistance value to obtain a near-source broadband observation signal; and the amplifying circuit is used for amplifying the observation signal with a constant gain and outputting a sensor output signal. This application carries out automatic matching control on the damping resistance value through the adaptive damping matching resistance circuit, thereby ensuring that the sensor can stably and reliably implement fine observation of an earth response under near-source, broadband and complex scene conditions.

    Method and System for Reducing Connection Set-Up Time
    3.
    发明申请
    Method and System for Reducing Connection Set-Up Time 有权
    减少连接建立时间的方法和系统

    公开(公告)号:US20120127943A1

    公开(公告)日:2012-05-24

    申请号:US13364404

    申请日:2012-02-02

    IPC分类号: H04W72/04

    摘要: A method of connection setup in mobile wireless data communications systems is disclosed where the connection setup time is decreased for delay-sensitive communications sessions relative to the normal connection setup time for confidence-dependent communications sessions. This is achieved by performing some of the connection set-up steps for delay-sensitive communications sessions after successfully demodulating a smaller number of indications identifying an access terminal's desired serving resource than would be demodulated in the case of a confidence-dependent communication session prior to performing the same connection set-up steps.

    摘要翻译: 公开了一种移动无线数据通信系统中的连接建立方法,其中相对于用于依赖于置信的通信会话的正常连接建立时间,延迟敏感通信会话的连接建立时间减少。 这是通过在成功地解调识别接入终端的期望服务资源的较少数量的指示之后执行用于延迟敏感通信会话的一些连接建立步骤来实现的,而不是在依赖于依赖于通信会话的情况下被解调的 执行相同的连接设置步骤。

    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

    摘要: 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
    5.
    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

    IPC分类号: H04B7/00 H04Q7/20

    摘要: 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.

    摘要翻译: 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。

    METHOD OF MEASURING AAS EMF
    6.
    发明申请

    公开(公告)号:US20220264319A1

    公开(公告)日:2022-08-18

    申请号:US17624691

    申请日:2020-06-30

    摘要: Embodiments of a method for measurement of electromagnetic field strength at a point of interest in a coverage area of a 2-dimensional (2D) active antenna system (AAS). The 2D AAS transmits with a load factor of 100 percent. The 2D AAS sweeps a predefined range of azimuth and elevation angles, and azimuth and elevation directions which yield highest EMF at the point of interest are determined. First beamforming weights are determined based on the azimuth and elevation directions and the 2D AAS caused to apply the first beamforming weights. The 2D AAS sweeps a co-phasing angle from 0 to 360 degrees, and a co-phasing angle which yields highest EMF is determined. Second beamforming weights are determined based on azimuth and elevation directions and the co-phasing angle, and the 2D AAS caused to apply the second beamforming weights. The EMF strength at the point of interest is measured.

    Distributed Airborne Electromagnetic Detection System

    公开(公告)号:US20210302613A1

    公开(公告)日:2021-09-30

    申请号:US16836821

    申请日:2020-03-31

    摘要: The present disclosure discloses a distributed airborne electromagnetic detection system, and relates to an airborne electromagnetic detection technology. The distributed airborne electromagnetic detection system comprises at least one transmitting system, at least one receiving system, at least one trunk module, and an earth station, and also a plurality of Unmanned Aerial Vehicles (UAVs) for carrying the transmitting system, the receiving system, and the trunk module. The distributed airborne electromagnetic detection system does not require high performance or high economical efficiency for a single UAV; under precise synchronous flight conditions, the distance between a type I UAV and a transmitting loop structure can be greatly reduced, thereby significantly reducing the length of unwanted transmitting cable; and in addition, due to the better low-altitude low-speed performance of UAVs, the traveling speed of the entire system can be further reduced, thus obtaining higher quality data.

    Method and system for reducing connection set-up time
    9.
    发明授权
    Method and system for reducing connection set-up time 有权
    减少连接建立时间的方法和系统

    公开(公告)号:US08134963B1

    公开(公告)日:2012-03-13

    申请号:US12098073

    申请日:2008-04-04

    IPC分类号: H04Q7/00

    摘要: A method of connection setup in mobile wireless data communications systems is disclosed where the connection setup time is decreased for delay-sensitive communications sessions relative to the normal connection setup time for confidence-dependent communications sessions. This is achieved by performing some of the connection set-up steps for delay-sensitive communications sessions after successfully demodulating a smaller number of indications identifying an access terminal's desired serving resource than would be demodulated in the case of a confidence-dependent communication session prior to performing the same connection set-up steps.

    摘要翻译: 公开了一种移动无线数据通信系统中的连接建立方法,其中相对于用于依赖于置信的通信会话的正常连接建立时间,延迟敏感通信会话的连接建立时间减少。 这是通过在成功地解调识别接入终端的期望服务资源的较少数量的指示之后执行用于延迟敏感通信会话的一些连接建立步骤来实现的,而不是在依赖于依赖于通信会话的情况下被解调的 执行相同的连接设置步骤。

    Method for determination of discontinuous transmission, frame erasure, and rate
    10.
    发明授权
    Method for determination of discontinuous transmission, frame erasure, and rate 有权
    确定不连续传输,帧擦除和速率的方法

    公开(公告)号:US07505534B1

    公开(公告)日:2009-03-17

    申请号:US10690604

    申请日:2003-10-23

    IPC分类号: H03D1/00

    摘要: This invention enables determining whether a received frame is an erasure, a DTX mode frame or a CONT mode frame, using a metric m derived from the log likelihood ratio (LLR). The new metric is obtained by calculating the mean for the LLRs for a frame; a threshold T for this metric is also established. A received frame is declared a CONT frame if the CRC value indicates a successfully recovered frame, and m>T. A received frame is a DTX frame if m T. The mean absolute LLR may also be used for determining the transmission rate of the system. In this case, a voice frame is decoded for all rates available; the transmission rate is that which corresponds to a passed CRC and has the highest m.

    摘要翻译: 本发明能够使用从对数似然比(LLR)导出的度量m来确定接收到的帧是否为擦除,DTX模式帧还是CONT模式帧。 通过计算帧的LLR的平均值来获得新的度量; 也建立了该度量的阈值T. 如果CRC值表示成功恢复帧,则m> T,则将接收到的帧声明为CONT帧。 如果m T,则声明一个帧被擦除。 平均绝对LLR也可用于确定系统的传输速率。 在这种情况下,对所有可利用的速率解码语音帧; 传输速率是对应于通过的CRC并且具有最高的m的传输速率。