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1.发明申请公开(公告)号：US20090295632A1
公开(公告)日：2009-12-03
申请号：US12130520
申请日：2008-05-30
Applicant: Emilija M. Simic , Douglas Grover , Rizwan Ahmed
Inventor： Emilija M. Simic , Douglas Grover , Rizwan Ahmed
IPC: G01S1/00
Abstract: Methods and apparatus are provided for use in devices adapted to receive signals from at least one satellite positioning system (SPS). As part of at least one search for a transmission from a space vehicle (SV) associated with the SPS, the methods and apparatuses may correlate a code associated with the SV with a received signal to establish a plurality of correlation values, sample at least a portion of the correlation values during the search, and selectively transitioning the search early or prematurely based, at least in part, on at least one of the sampled correlation values.
Abstract translation: 提供了用于适于从至少一个卫星定位系统（SPS）接收信号的设备中使用的方法和装置。 作为至少一次搜索与SPS相关联的空间飞行器（SV）的传输的一部分，方法和装置可以将与SV相关联的代码与接收的信号相关联，以建立多个相关值，至少采样 在搜索期间相关值的一部分，以及至少部分地基于采样的相关值中的至少一个来选择性地早期或过早地选择性地转换搜索。
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2.发明授权公开(公告)号：US08081922B2
公开(公告)日：2011-12-20
申请号：US12130520
申请日：2008-05-30
Applicant: Emilija M. Simic , Douglas Grover , Rizwan Ahmed
Inventor： Emilija M. Simic , Douglas Grover , Rizwan Ahmed
IPC: H04H1/00
Abstract: Methods and apparatus are provided for use in devices adapted to receive signals from at least one satellite positioning system (SPS). As part of at least one search for a transmission from a space vehicle (SV) associated with the SPS, the methods and apparatuses may correlate a code associated with the SV with a received signal to establish a plurality of correlation values, sample at least a portion of the correlation values during the search, and selectively transitioning the search early or prematurely based, at least in part, on at least one of the sampled correlation values.
Abstract translation: 提供了用于适于从至少一个卫星定位系统（SPS）接收信号的设备中使用的方法和装置。 作为至少一次搜索与SPS相关联的空间飞行器（SV）的传输的一部分，方法和装置可以将与SV相关联的代码与接收的信号相关联，以建立多个相关值，至少采样 在搜索期间相关值的一部分，以及至少部分地基于采样的相关值中的至少一个来选择性地早期地或过早地选择性地转换搜索。
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公开(公告)号：US08442095B2
公开(公告)日：2013-05-14
申请号：US12139458
申请日：2008-06-14
Applicant: Rizwan Ahmed , Emilija M. Simic
Inventor： Rizwan Ahmed , Emilija M. Simic
IPC: H04B1/69
CPC classification number: H04B1/7077 , G01S19/30 , H04B1/709 , H04B2201/70715
Abstract: Methods and apparatus for code phase processing in a wireless communication device are described herein. A wireless device performs code phase search on a pseudo random code spread signal received over a wireless channel. A correlator correlates the received signal to a plurality of code phases in each of a plurality of frequency hypothesis. A maximum peak and a second peak are determined from the correlation results. Cross correlation processing is performed on the maximum peak and the maximum peak is discarded in favor of the second peak for position processing based on the results of the cross correlation.
Abstract translation: 本文描述了无线通信设备中用于码相位处理的方法和装置。 无线设备对通过无线信道接收的伪随机码扩展信号执行码相搜索。 相关器将接收的信号与多个频率假设中的每一个中的多个码相关联。 根据相关结果确定最大峰值和第二峰值。 基于互相关的结果，对最大峰进行互相关处理，并舍弃最大峰，有利于位置处理的第二峰。
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公开(公告)号：US20090295631A1
公开(公告)日：2009-12-03
申请号：US12129397
申请日：2008-05-29
Applicant: Jie Wu , Rizwan Ahmed , Emilija M. Simic , Dominic Gerard Farmer
Inventor： Jie Wu , Rizwan Ahmed , Emilija M. Simic , Dominic Gerard Farmer
IPC: G01S1/00
CPC classification number: G01S19/21
Abstract: An apparatus and method for cross-correlation spur mitigation comprising choosing from a plurality of peak measurements, a first peak measurement with a first carrier-to-noise density estimate and a first Doppler offset measurement, and a second peak measurement with a second carrier-to-noise density estimate and a second Doppler offset measurement to form a pair; calculating a carrier-to-noise density difference based on the first carrier-to-noise density estimate and the second carrier-to-noise density estimate; calculating a Doppler difference based on the first Doppler offset measurement and the second Doppler offset measurement; comparing the carrier-to-noise density difference to a carrier-to-noise density threshold; and comparing the Doppler difference to at least one Doppler threshold.
Abstract translation: 一种用于互相关刺激减轻的装置和方法，包括从多个峰值测量中选择具有第一载波噪声密度估计和第一多普勒偏移测量的第一峰值测量，以及使用第二载波 - 噪声密度估计和第二多普勒偏移测量以形成一对; 基于所述第一载波噪声密度估计和所述第二载波噪声密度估计来计算载波噪声密度差; 基于第一多普勒偏移测量和第二多普勒偏移测量来计算多普勒差; 将载波噪声密度差与载波噪声密度阈值相比较; 以及将多普勒差异与至少一个多普勒阈值进行比较。
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公开(公告)号：US08022869B2
公开(公告)日：2011-09-20
申请号：US12129397
申请日：2008-05-29
Applicant: Jie Wu , Rizwan Ahmed , Emilija M. Simic , Dominic Gerard Farmer
Inventor： Jie Wu , Rizwan Ahmed , Emilija M. Simic , Dominic Gerard Farmer
CPC classification number: G01S19/21
Abstract: An apparatus and method for cross-correlation spur mitigation comprising choosing from a plurality of peak measurements, a first peak measurement with a first carrier-to-noise density estimate and a first Doppler offset measurement, and a second peak measurement with a second carrier-to-noise density estimate and a second Doppler offset measurement to form a pair; calculating a carrier-to-noise density difference based on the first carrier-to-noise density estimate and the second carrier-to-noise density estimate; calculating a Doppler difference based on the first Doppler offset measurement and the second Doppler offset measurement; comparing the carrier-to-noise density difference to a carrier-to-noise density threshold; and comparing the Doppler difference to at least one Doppler threshold.
Abstract translation: 一种用于互相关刺激减轻的装置和方法，包括从多个峰值测量中选择具有第一载波噪声密度估计和第一多普勒偏移测量的第一峰值测量，以及使用第二载波 - 噪声密度估计和第二多普勒偏移测量以形成一对; 基于所述第一载波噪声密度估计和所述第二载波噪声密度估计来计算载波噪声密度差; 基于第一多普勒偏移测量和第二多普勒偏移测量来计算多普勒差; 将载波噪声密度差与载波噪声密度阈值进行比较; 以及将多普勒差异与至少一个多普勒阈值进行比较。
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Patent Agency Ranking
公开(公告)号：US20090310654A1
公开(公告)日：2009-12-17
申请号：US12139458
申请日：2008-06-14
Applicant: Rizwan Ahmed , Emilija M. Simic
Inventor： Rizwan Ahmed , Emilija M. Simic
IPC: H04B1/707
CPC classification number: H04B1/7077 , G01S19/30 , H04B1/709 , H04B2201/70715
Abstract: Methods and apparatus for code phase processing in a wireless communication device are described herein. A wireless device performs code phase search on a pseudo random code spread signal received over a wireless channel. A correlator correlates the received signal to a plurality of code phases in each of a plurality of frequency hypothesis. A maximum peak and a second peak are determined from the correlation results. Cross correlation processing is performed on the maximum peak and the maximum peak is discarded in favor of the second peak for position processing based on the results of the cross correlation.
Abstract translation: 本文描述了无线通信设备中用于码相位处理的方法和装置。 无线设备对通过无线信道接收的伪随机码扩展信号执行码相搜索。 相关器将接收的信号与多个频率假设中的每一个中的多个码相关联。 根据相关结果确定最大峰值和第二峰值。 基于互相关的结果，对最大峰进行互相关处理，并舍弃最大峰，有利于位置处理的第二峰。
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公开(公告)号：US08503513B2
公开(公告)日：2013-08-06
申请号：US13310535
申请日：2011-12-02
Applicant: Emilija M. Simic , Shiou-Hung Chen , Douglas Grover
Inventor： Emilija M. Simic , Shiou-Hung Chen , Douglas Grover
IPC: H04B1/00
Abstract: The subject matter disclosed herein relates to a system and method for processing a signal received from a satellite positioning system (SPS) in the presence of a multi-tone jammer. In one particular implementation, processing of a signal may be altered in response to detection of one or more conditions.
Abstract translation: 本文公开的主题涉及用于在存在多音调干扰的情况下处理从卫星定位系统（SPS）接收的信号的系统和方法。 在一个具体实现中，响应于一个或多个条件的检测可以改变信号的处理。
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公开(公告)号：US20120076177A1
公开(公告)日：2012-03-29
申请号：US13310535
申请日：2011-12-02
Applicant: Emilija M. Simic , Shiou-Hung Chen , Douglas Grover
Inventor： Emilija M. Simic , Shiou-Hung Chen , Douglas Grover
IPC: H04B1/707
Abstract: The subject matter disclosed herein relates to a system and method for processing a signal received from a satellite positioning system (SPS) in the presence of a multi-tone jammer. In one particular implementation, processing of a signal may be altered in response to detection of one or more conditions.
Abstract translation: 本文公开的主题涉及用于在存在多音调干扰的情况下处理从卫星定位系统（SPS）接收的信号的系统和方法。 在一个具体实现中，响应于一个或多个条件的检测可以改变信号的处理。
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公开(公告)号：US08094702B2
公开(公告)日：2012-01-10
申请号：US12111101
申请日：2008-04-28
Applicant: Emilija M. Simic , Shiou-Hung Chen , Douglas Grover
Inventor： Emilija M. Simic , Shiou-Hung Chen , Douglas Grover
IPC: H04B1/00
Abstract: The subject matter disclosed herein relates to a system and method for processing a signal received from a satellite positioning system (SPS) in the presence of a multi-tone jammer. In one particular implementation, processing of a signal may be altered in response to detection of one or more conditions.
Abstract translation: 本文公开的主题涉及用于在存在多音调干扰的情况下处理从卫星定位系统（SPS）接收的信号的系统和方法。 在一个具体实现中，响应于一个或多个条件的检测可以改变信号的处理。
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公开(公告)号：US20090268788A1
公开(公告)日：2009-10-29
申请号：US12111101
申请日：2008-04-28
Applicant: Emilija M. Simic , Shiou-Hung Chen , Douglas Grover
Inventor： Emilija M. Simic , Shiou-Hung Chen , Douglas Grover
IPC: H04B1/707
Abstract: The subject matter disclosed herein relates to a system and method for processing a signal received from a satellite positioning system (SPS) in the presence of a multi-tone jammer. In one particular implementation, processing of a signal may be altered in response to detection of one or more conditions.
Abstract translation: 本文公开的主题涉及用于在存在多音调干扰的情况下处理从卫星定位系统（SPS）接收的信号的系统和方法。 在一个具体实现中，响应于一个或多个条件的检测可以改变信号的处理。
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