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1. 发明申请

US20130181843A1 INTERFERENCE REDUCTION METHOD FOR DOWNHOLE TELEMETRY SYSTEMS 有权
标题翻译：用于井下远程系统的干扰减少方法
公开(公告)号：US20130181843A1
公开(公告)日：2013-07-18
申请号：US13352714
申请日：2012-01-18
申请人： Sanam Moghaddamnia , Feng Zheng , Imed Ben Brahim , Wojciech Emmerich , Christian Hansen , Jens-Uwe Bruns
发明人： Sanam Moghaddamnia , Feng Zheng , Imed Ben Brahim , Wojciech Emmerich , Christian Hansen , Jens-Uwe Bruns
IPC分类号： G01V3/00
CPC分类号： H04B1/10 , E21B47/18 , G01V11/002
摘要： A method for reducing interference in a received downhole telemetry signal includes: segmenting a received signal; windowing each signal segment; transforming each windowed signal segment into a complex variable domain to generate a plurality of complex variable domain segments with an in-phase component vector I and a quadrature component vector Q; calculating a real amplitude vector A from the I and the Q vectors; filtering interferers in the amplitude vector A for each complex variable domain segment to generate a filtered amplitude vector Ã; recalculating an amplitude of the amplitude vector A using the filtered amplitude vector Ã to generate an output amplitude vector Â; scaling the I and the Q vectors by a factor Â/A to generate an output in-phase component vector I′ and an output quadrature component vector Q′; and transforming I′ and Q′ into the time domain to provide an interference-reduced output signal in the time domain.
摘要翻译：一种用于减少接收的井下遥测信号中的干扰的方法包括：分割接收的信号; 加窗每个信号段; 将每个窗口信号段变换为复数可变域以产生具有同相分量向量I和正交分量向量Q的多个复变量可变域段; 从I和Q向量计算实幅矢量A; 对每个复数可变域段的幅度矢量A中的干扰源进行滤波，以生成滤波幅度矢量。使用滤波的幅度矢量重新计算振幅矢量A的振幅，以产生输出幅度矢量; 将I和Q向量缩放因子/ A以产生输出同相分量矢量I'和输出正交分量矢量Q'; 并将I'和Q'转换成时域，以在时域中提供干扰减小的输出信号。

2. 发明授权

US08942330B2 Interference reduction method for downhole telemetry systems 有权
标题翻译：井下遥测系统的干涉降低方法
公开(公告)号：US08942330B2
公开(公告)日：2015-01-27
申请号：US13352714
申请日：2012-01-18
申请人： Sanam Moghaddamnia , Feng Zheng , Imed Ben Brahim , Wojciech Emmerich , Christian Hansen , Jens-Uwe Bruns
发明人： Sanam Moghaddamnia , Feng Zheng , Imed Ben Brahim , Wojciech Emmerich , Christian Hansen , Jens-Uwe Bruns
IPC分类号： H03D1/04 , H04B1/10
CPC分类号： H04B1/10 , E21B47/18 , G01V11/002
摘要： A method for reducing interference in a received downhole telemetry signal includes: segmenting a received signal; windowing each signal segment; transforming each windowed signal segment into a complex variable domain to generate a plurality of complex variable domain segments with an in-phase component vector I and a quadrature component vector Q; calculating a real amplitude vector A from the I and the Q vectors; filtering interferers in the amplitude vector A for each complex variable domain segment to generate a filtered amplitude vector Ã; recalculating an amplitude of the amplitude vector A using the filtered amplitude vector Ã to generate an output amplitude vector Â; scaling the I and the Q vectors by a factor Â/A to generate an output in-phase component vector I′ and an output quadrature component vector Q′; and transforming I′ and Q′ into the time domain to provide an interference-reduced output signal in the time domain.
摘要翻译：一种用于减少接收的井下遥测信号中的干扰的方法包括：分割接收的信号; 加窗每个信号段; 将每个窗口信号段变换为复数可变域以产生具有同相分量向量I和正交分量向量Q的多个复变量可变域段; 从I和Q向量计算实幅矢量A; 对每个复数可变域段的幅度矢量A中的干扰源进行滤波，以生成滤波幅度矢量。使用滤波的幅度矢量重新计算振幅矢量A的振幅，以产生输出幅度矢量; 将I和Q向量缩放因子/ A以产生输出同相分量矢量I'和输出正交分量矢量Q'; 并将I'和Q'转换成时域，以在时域中提供干扰减小的输出信号。

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