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公开(公告)号：WO1998029759A1
公开(公告)日：1998-07-09
申请号：PCT/US1997021653
申请日：1997-11-25
Applicant: RAYTHEON COMPANY
Inventor： RAYTHEON COMPANY , KOLANEK, James, C. , BRYAN, Thomas, A.
IPC: G01S07/02
CPC classification number: G01S7/021
Abstract: The invention is embodied in a parameter encoder for identifying selected parameters of a digitally sampled incoming signal lying within a receiver bandwidth, wherein the receiver bandwidth is divided into plural contiguous frequency channels, each channel having a channel bandwidth, whereby the incoming signal is divided into plural channelized signals lying in respective ones of the plural frequency channels, the parameter encoder includes plural channel processors connected to receive respective ones of the channelized signals, each of the channel processors including Fourier transform apparatus for producing a frequency value and an amplitude value for each sample of the respective channelized signal. The parameter encoder embodying the invention further includes a channel arbitrator including comparator apparatus for comparing the amplitude value with a predetermined threshold, comparing the amplitude value with the corresponding amplitude values of adjacent ones of the channels and comparing the frequency value with corresponding frequency values of adjacent ones of the channels, and processor apparatus for sensing whether a detected signal lies in the respective channel based upon at least one of: (a) determination of a corresponding amplitudes values of the respective channel and its adjacent neighbor channels relative to the predetermined threshold, (b) determination of predominance of the frequency value over corresponding frequency values of adjacent neighbor channels, (c) determination of a difference between the frequency value and that one of an adjacent neighbor channel exceeding a predetermined frequency threshold.
Abstract translation: 本发明体现在用于识别位于接收机带宽内的数字采样输入信号的选定参数的参数编码器中，其中接收机带宽被划分为多个连续的频道，每个信道具有信道带宽，从而将输入信号分成 多个信道化信号位于多个频道中的相应信号中，参数编码器包括连接以接收相应信道化信号的多个信道处理器，每个信道处理器包括用于产生频率值的傅立叶变换装置和每个 各个信道化信号的采样。 实施本发明的参数编码器还包括信道仲裁器，其包括用于将振幅值与预定阈值进行比较的比较器装置，将振幅值与相邻频道的对应振幅值进行比较，并将频率值与相邻频率值对应的频率值进行比较 信道中的一个以及用于基于以下各项中的至少一个来感测检测信号是否位于相应信道中的处理器装置：（a）相对于预定阈值确定相应信道及其邻近相邻信道的对应幅度值， （b）确定频率值相对于邻近相邻信道的相应频率值的优势，（c）确定频率值与超过预定频率阈值的邻近相邻信道之间的差异的确定。
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Patent Agency Ranking
公开(公告)号：WO1998029756A1
公开(公告)日：1998-07-09
申请号：PCT/US1997021654
申请日：1997-11-25
Applicant: RAYTHEON COMPANY
Inventor： RAYTHEON COMPANY , KOLANEK, James, C.
IPC: G01S03/48
Abstract: The invention is embodied in a digital direction finding receiver having N frequency channels (50a, 50e) spanning a frequency band of the receiver and capable of receiving signals simultaneously from a plurality of antennas (30a, 30e) spaced from one another, one of the antennas including a reference location antenna. The receiver of the invention includes a plurality of analog-to-digital converters (32a, 32e) having their analog inputs connected to respective ones of the antennas, a reference source (58) capable of outputting a reference digital signal containing at least a local frequency component within a selected one of the N frequency channels, a plurality of digital down converter modules (50a, 50e), each one of the digital down converter modules having a reference input connected to the reference source and a signal input connected to the digital output of a respective one of the analog-to-digital converters, each the digital down converter modules including a multiplier (56a, 56e) for producing at an output of the digital down converter a product of the reference signal and the signal from the respective one of the antennas, and a digital phase detector (35) having plural phase detector signals inputs connected to the outputs of remaining ones of the digital down converters, the phase detector detecting phase angles of the signals on each of the phase detector signal inputs relative to a corresponding signal received at the reference antenna.
Abstract translation: 本发明体现在具有N个频率信道（50a，50e）的数字方向发现接收机中，该频率信道（50a，50e）跨越接收机的频带并且能够从彼此间隔开的多个天线（30a，30e）同时接收信号， 天线包括参考位置天线。 本发明的接收机包括多个模拟数字转换器（32a，32e），其模拟输入端连接到相应的天线，参考源（58）能够输出至少包含一个本地 多个数字下变频模块（50a，50e），每个数字下变频模块具有连接到参考源的基准输入端和连接到数字下变频器模块的信号输入端 每个数字下变换器模块包括一个乘法器（56a，56e），用于在数字下变频器的输出端产生参考信号和来自相应的信号的信号的乘积 天线中的一个以及具有多个相位检测器信号输入的数字相位检测器（35），其连接到数字下变频器中剩余的输出的相位检测器 检测每个相位检测器信号输入端的信号相对于在参考天线处接收到的相应信号的相位角。
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公开(公告)号：EP0950195B1
公开(公告)日：2003-01-15
申请号：EP97949626.2
申请日：1997-11-25
Applicant: RAYTHEON COMPANY
Inventor： KOLANEK, James, C. , BRYAN, Thomas, A.
IPC: G01S7/02
CPC classification number: G01S7/021
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公开(公告)号：EP0950195A1
公开(公告)日：1999-10-20
申请号：EP97949626.0
申请日：1997-11-25
Applicant: RAYTHEON COMPANY
Inventor： KOLANEK, James, C. , BRYAN, Thomas, A.
CPC classification number: G01S7/021
Abstract: The invention is embodied in a parameter encoder for identifying selected parameters of a digitally sampled incoming signal lying within a receiver bandwidth, wherein the receiver bandwidth is divided into plural contiguous frequency channels, each channel having a channel bandwidth, whereby the incoming signal is divided into plural channelized signals lying in respective ones of the plural frequency channels, the parameter encoder includes plural channel processors connected to receive respective ones of the channelized signals, each of the channel processors including Fourier transform apparatus for producing a frequency value and an amplitude value for each sample of the respective channelized signal. The parameter encoder embodying the invention further includes a channel arbitrator including comparator apparatus for comparing the amplitude value with a predetermined threshold, comparing the amplitude value with the corresponding amplitude values of adjacent ones of the channels and comparing the frequency value with corresponding frequency values of adjacent ones of the channels, and processor apparatus for sensing whether a detected signal lies in the respective channel based upon at least one of: (a) determination of a corresponding amplitudes values of the respective channel and its adjacent neighbor channels relative to the predetermined threshold, (b) determination of predominance of the frequency value over corresponding frequency values of adjacent neighbor channels, (c) determination of a difference between the frequency value and that one of an adjacent neighbor channel exceeding a predetermined frequency threshold.
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公开(公告)号：EP1021732B1
公开(公告)日：2002-12-18
申请号：EP97948539.8
申请日：1997-11-25
Applicant: RAYTHEON COMPANY
Inventor： KOLANEK, James, C.
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公开(公告)号：EP1021732A1
公开(公告)日：2000-07-26
申请号：EP97948539.8
申请日：1997-11-25
Applicant: RAYTHEON COMPANY
Inventor： KOLANEK, James, C.
Abstract: The invention is embodied in a digital direction finding receiver having N frequency channels (50a, 50e) spanning a frequency band of the receiver and capable of receiving signals simultaneously from a plurality of antennas (30a, 30e) spaced from one another, one of the antennas including a reference location antenna. The receiver of the invention includes a plurality of analog-to-digital converters (32a, 32e) having their analog inputs connected to respective ones of the antennas, a reference source (58) capable of outputting a reference digital signal containing at least a local frequency component within a selected one of the N frequency channels, a plurality of digital down converter modules (50a, 50e), each one of the digital down converter modules having a reference input connected to the reference source and a signal input connected to the digital output of a respective one of the analog-to-digital converters, each the digital down converter modules including a multiplier (56a, 56e) for producing at an output of the digital down converter a product of the reference signal and the signal from the respective one of the antennas, and a digital phase detector (35) having plural phase detector signals inputs connected to the outputs of remaining ones of the digital down converters, the phase detector detecting phase angles of the signals on each of the phase detector signal inputs relative to a corresponding signal received at the reference antenna.
Abstract translation: 本发明体现在具有N个频率信道（50a，50e）的数字测向接收机中，所述N个频率信道跨越接收机的频带并能够从彼此间隔开的多个天线（30a，30e）同时接收信号，其中一个 包括参考位置天线的天线。 本发明的接收机包括多个模拟 - 数字转换器（32a，32e），它们的模拟输入端连接到相应的天线;参考源（58），能够输出包含至少一个本地 多个数字下变频器模块（50a，50e），所述数字下变频器模块中的每一个具有连接到所述参考源的参考输入和连接到所述数字数字下变频器模块 其中每个数字下变频器模块包括一个乘法器（56a，56e），用于在数字下变频器的输出端产生参考信号和来自各个模数转换器的信号的乘积 一个天线和一个具有多个相位检测器信号输入端的数字相位检测器（35），输入端连接到其余数字下变频器的输出端，相位检测器 其检测每个相位检测器信号输入端上的信号相对于在参考天线处接收到的对应信号的相位角。
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