公开(公告)号：US07606528B2

公开(公告)日：2009-10-20

申请号：US11595577

申请日：2006-11-10

Applicant: David Keith Mesecher

Inventor： David Keith Mesecher

IPC: H04Q7/20

CPC classification number: H01Q3/2605 ,  H01Q1/288 ,  H01Q3/30 ,  H04H20/51

Abstract: An apparatus comprises a distributed array of antenna elements for receiving a radio frequency signal on a satellite communications link, wherein the radio frequency signal includes a known preamble; a plurality of mixers for translating the radio frequency signal to a plurality of baseband signals having in-phase and quadrature components; a processor for applying weights to the baseband signals, wherein the weights are found adaptively in response to the preamble in combination with decision-directed feedback when the preamble is not present; and a receiver for processing the weighted baseband signals. A pre-processor can be used to create sub-arrays of the antenna elements using maximal-ratio weighting. A method performed by the apparatus is also provided.

Abstract translation: 一种装置包括用于在卫星通信链路上接收射频信号的天线元件的分布阵列，其中所述射频信号包括已知的前同步码; 多个混频器，用于将射频信号转换成具有同相和正交分量的多个基带信号; 用于对基带信号应用加权的处理器，其中当所述前同步码不存在时，响应于所述前导码与所述决策导向反馈相结合地发现所述加权; 以及用于处理加权基带信号的接收机。 可以使用预处理器来使用最大比例权重来创建天线元件的子阵列。 还提供了由该装置执行的方法。

公开(公告)号：US07830982B2

公开(公告)日：2010-11-09

申请号：US11433695

申请日：2006-05-12

Applicant: David Keith Mesecher

Inventor： David Keith Mesecher

IPC: H04L27/00

CPC classification number: H04B7/0617 ,  H01Q1/282 ,  H01Q3/26 ,  H01Q3/2605 ,  H01Q3/2611 ,  H04L27/362

Abstract: An apparatus comprises a plurality of antenna elements, a plurality of digital signal processing devices for supplying phase-and-amplitude-weighted digital baseband signals, a beamforming processor for processing the weighted digital baseband signals to adaptively form a plurality of beam patterns for the antenna elements, a plurality of digital modulators for converting the digital baseband signals into intermediate frequency digital signals, and a modulator for modulating in-phase and quadrature components of the intermediate frequency digital signals to produce composite radio frequency output signals for the antenna elements. Receiving apparatus, and methods of transmitting and receiving a plurality of signals on a plurality of antenna elements are also provided.

Abstract translation: 一种装置包括多个天线元件，用于提供相位和幅度加权的数字基带信号的多个数字信号处理装置，用于处理加权的数字基带信号的波束成形处理器，以自适应地形成天线的多个波束图案 用于将数字基带信号转换为中频数字信号的多个数字调制器，以及用于调制中频数字信号的同相和正交分量的调制器，以产生用于天线元件的复合射频输出信号。 还提供接收装置以及在多个天线元件上发送和接收多个信号的方法。

公开(公告)号：US07551139B1

公开(公告)日：2009-06-23

申请号：US11432940

申请日：2006-05-12

Applicant: David Keith Mesecher

Inventor： David Keith Mesecher

IPC: G01S3/02

CPC classification number: G01S5/06 ,  G01S5/0009

Abstract: An apparatus comprises a first sensor mounted on a first platform for sampling a first portion of a continuous waveform occurring in a time window and for producing a first signal sample, a second sensor mounted on a second platform for sampling a second portion of the continuous waveform occurring in the time window for producing a second signal sample, and a processor for determining time difference of arrival measurements and for applying a maximum likelihood estimation process to combine multiple time difference of arrival measurements between multiple pairs of platforms, to estimate the location of an emitter of the continuous waveform. A method performed by the apparatus is also provided.

Abstract translation: 一种装置包括安装在第一平台上的第一传感器，用于对在时间窗中出现的连续波形的第一部分进行采样，并用于产生第一信号样本;安装在第二平台上的第二传感器，用于对连续波形的第二部分进行采样 发生在用于产生第二信号样本的时间窗口中;以及处理器，用于确定到达时间差的测量值，并且用于应用最大似然估计处理以组合多对平台之间的多个到达时间差测量值，以估计一个 发射器的连续波形。 还提供了由该装置执行的方法。

公开(公告)号：US20090146881A1

公开(公告)日：2009-06-11

申请号：US11432940

申请日：2006-05-12

Applicant: David Keith Mesecher

Inventor： David Keith Mesecher

IPC: G01S3/16

CPC classification number: G01S5/06 ,  G01S5/0009

Abstract: An apparatus comprises a first sensor mounted on a first platform for sampling a first portion of a continuous waveform occurring in a time window and for producing a first signal sample, a second sensor mounted on a second platform for sampling a second portion of the continuous waveform occurring in the time window for producing a second signal sample, and a processor for determining time difference of arrival measurements and for applying a maximum likelihood estimation process to combine multiple time difference of arrival measurements between multiple pairs of platforms, to estimate the location of an emitter of the continuous waveform. A method performed by the apparatus is also provided.

Abstract translation: 一种装置包括安装在第一平台上的第一传感器，用于对在时间窗中出现的连续波形的第一部分进行采样，并用于产生第一信号样本;安装在第二平台上的第二传感器，用于对连续波形的第二部分进行采样 发生在用于产生第二信号样本的时间窗口中;以及处理器，用于确定到达时间差的测量值，并且用于应用最大似然估计处理以组合多对平台之间的多个到达时间差测量值，以估计一个 发射器的连续波形。 还提供了由该装置执行的方法。

公开(公告)号：US20090023383A1

公开(公告)日：2009-01-22

申请号：US11595577

申请日：2006-11-10

Applicant: David Keith Mesecher

Inventor： David Keith Mesecher

IPC: H04H20/74

CPC classification number: H01Q3/2605 ,  H01Q1/288 ,  H01Q3/30 ,  H04H20/51

Abstract: An apparatus comprises a distributed array of antenna elements for receiving a radio frequency signal on a satellite communications link, wherein the radio frequency signal includes a known preamble; a plurality of mixers for translating the radio frequency signal to a plurality of baseband signals having in-phase and quadrature components; a processor for applying weights to the baseband signals, wherein the weights are found adaptively in response to the preamble in combination with decision-directed feedback when the preamble is not present; and a receiver for processing the weighted baseband signals. A pre-processor can be used to create sub-arrays of the antenna elements using maximal-ratio weighting. A method performed by the apparatus is also provided.