METHOD FOR DISTRIBUTING ENERGY HARVESTING GEOPHONES

    公开(公告)号:US20230367026A1

    公开(公告)日:2023-11-16

    申请号:US17985581

    申请日:2022-11-11

    CPC classification number: G01V1/181 G01V1/162 G01V1/164 G01V1/166

    Abstract: A method for distributing geophones around a seismic data source includes distributing a first geophones each including a first piezoelectric system in a first region in which the seismic data source is located then distributing second geophones each including a solar cell in a second region surrounding the first region. The second geophones further include a housing, a spike provided on a bottom surface of the housing, a sensor configured to sense seismic data; a processor configured to process the seismic data, a transceiver configured to transmit the processed seismic data and receive radio frequency (RF) signals wirelessly; and a power device. The power device is coupled to the sensor, the processor and the transceiver. The power device is configured to harvest energy from an environment where the geophone is located. The power device includes a solar cell provided on a top surface of the housing, a piezoelectric system provided on an edge of the housing adjacent to the top surface, and a thermoelectric generator provided on a bottom surface of the housing and a surface of the spike.

    APPARATUSES AND METHODOLOGIES FOR DECISION FEEDBACK EQUALIZATION USING PARTICLE SWARM OPTIMIZATION
    13.
    发明申请
    APPARATUSES AND METHODOLOGIES FOR DECISION FEEDBACK EQUALIZATION USING PARTICLE SWARM OPTIMIZATION 有权
    使用粒子优化的决策反馈均衡的设备和方法

    公开(公告)号:US20170048088A1

    公开(公告)日:2017-02-16

    申请号:US15066611

    申请日:2016-03-10

    Abstract: Methods and apparatuses are provided for channel equalization in a communication system. The method includes initializing, using processing circuitry, filter coefficients of an adaptive decision feedback equalizer randomly in a predetermined search space. Further, the method includes updating, using the processing circuitry, the filter coefficients. The filter coefficients are updated using a least mean square recursion when the filter coefficients are stagnant. The filter coefficients are updated using a particle swarm optimization procedure when the filter coefficients are not stagnant. Further, the updating step is repeated until a predetermined stopping criteria is met. Further, the method includes, filtering, using the processing circuitry, a received signal using the filter coefficients.

    Abstract translation: 在通信系统中提供了用于信道均衡的方法和装置。 该方法包括在预定的搜索空间中随机地使用处理电路初始化自适应判决反馈均衡器的滤波器系数。 此外,该方法包括使用处理电路来更新滤波器系数。 当滤波器系数停滞时,使用最小均方递归更新滤波器系数。 当滤波器系数不停滞时,使用粒子群优化程序来更新滤波器系数。 此外,重复更新步骤,直到满足预定的停止标准。 此外,该方法包括使用处理电路对使用滤波器系数的接收信号进行滤波。

    SYSTEM AND METHOD FOR SELECTING A SITE FOR A NUCLEAR REACTOR

    公开(公告)号:US20250076526A1

    公开(公告)日:2025-03-06

    申请号:US18459655

    申请日:2023-09-01

    Abstract: A method for determining a safe distance between a seismic source and an installation location of a nuclear reactor is disclosed. The method includes obtaining seismic data from a seismic sensor network located proximate the seismic source. The seismic sensor network includes a plurality of geophones each having seismic data receiver and configured to record seismic signals received from a geological formation under the installation location of the nuclear reactor. The plurality of geophones is communicatively coupled with a seismic data processor. The method includes processing seismic data with the seismic data processor to obtain an instantaneous frequency component from each of the geophones, comparing each of the instantaneous frequency components with a fundamental horizontal frequency of a substructure of nuclear reactor to determine a matching instantaneous frequency component, and determining safe distance between seismic source and installation location of the nuclear reactor based on matching instantaneous frequency component.

    METHOD AND SYSTEM FOR BLIND SIGNAL ESTIMATION

    公开(公告)号:US20250038797A1

    公开(公告)日:2025-01-30

    申请号:US18915414

    申请日:2024-10-15

    Abstract: A system, method, and non-transitory computer readable medium that perform blind signal estimation for single-input multiple-output systems. The method can include receiving, by the two or more receiver antennas of the receiver, an observed signal comprising the input signal and an additive noise term. The method can then form a data matrix using the observed signals from the two or more receiver antennas. The method can also include computing a singular value decomposition of the data matrix. The singular value decomposition can then be used to generate a parameter matrix. The method can then form a Toeplitz signal matrix using the parameter matrix. The method can estimating the input signal using the Toeplitz signal matrix.

    SYSTEM AND PROGRAM INSTRUCTIONS FOR SEISMIC SURVEY

    公开(公告)号:US20240418883A1

    公开(公告)日:2024-12-19

    申请号:US18814737

    申请日:2024-08-26

    Abstract: A system, computer-readable storage medium and method of reflection seismic survey in a wireless seismic network within a survey area is described. The method includes detecting, in each of a plurality of wireless seismic sensor nodes, seismic reflection signals from a seismic energy source; recording, in each of a plurality of wireless geophones, detected seismic signals; transmitting, by the geophones, the recorded seismic signals as digital data, using a combination of Orthogonal Frequency-Division Multiple Access (OFDMA) and Time Division Multiple Access (TDMA), to a central data receiving device; changing the seismic energy source location for seismic reflection; and repeating the detecting, recording and transmitting a number of times for each change in seismic energy source.

    TRANSPARENT MIMO ANTENNA FOR CLOSELY SPACED ANTENNA ELEMENTS

    公开(公告)号:US20240297430A1

    公开(公告)日:2024-09-05

    申请号:US18177506

    申请日:2023-03-02

    CPC classification number: H01Q1/1271 H01Q9/0407 H01Q21/06

    Abstract: An antenna is disclosed. The antenna includes a transparent substrate, a first square patch antenna element with a square lattice structure, a second square patch antenna element and a low profile transparent passive decoupling strip. The first square patch antenna element is disposed on the transparent substrate. The first square patch antenna element includes horizontal conductive wires and vertical conductive wires. The horizontal conductive wires and the vertical conductive wires cross each other and are equally spaced to form square spaces between. The second square patch antenna element is disposed on the transparent substrate. The second square patch antenna element has a structure identical to the structure of the first square patch antenna element. The first and the second square patch antenna elements are spaced apart from each other. The low profile transparent passive decoupling strip is disposed between the first and the second square patch antenna elements.

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