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1. 发明授权

US08081691B2 Detection of interferers using divergence of signal quality estimates 有权
标题翻译：使用信号质量估计的发散检测干扰源
公开(公告)号：US08081691B2
公开(公告)日：2011-12-20
申请号：US12014035
申请日：2008-01-14
申请人： Brian Chadwick Joseph , Sridhar Rajagopal , Syed Nadeem Ahmed , Yaming Zhang
发明人： Brian Chadwick Joseph , Sridhar Rajagopal , Syed Nadeem Ahmed , Yaming Zhang
IPC分类号： H04K1/10
CPC分类号： H04L5/0007 , H04B1/719
摘要： A method, system, and computer-readable medium for detecting an interferer in a wireless communication system are provided. The method includes receiving a signal having P tones, each of the P tones being associated with a frequency, determining a first signal quality of each of the P tones, determining a second signal quality of each of the P tones, and detecting the interferer that occupies the same frequency as one of the P tones based on the respective first signal quality and the respective second signal quality. The first signal quality and second signal quality behave differently when the interferer is present. The detecting the interferer includes determining a discrepancy in the behavior of the first signal quality and the second signal quality.
摘要翻译：提供了一种用于检测无线通信系统中的干扰源的方法，系统和计算机可读介质。该方法包括接收具有P个音调的信号，每个P音调与频率相关联，确定每个P音调的第一信号质量，确定每个P音调的第二信号质量，以及检测该干扰信号基于相应的第一信号质量和相应的第二信号质量，它们占据与P音调之一相同的频率。当干扰源存在时，第一信号质量和第二信号质量的行为不同。检测干扰源包括确定第一信号质量和第二信号质量的行为的差异。

2. 发明授权

US07869529B2 System, method and computer-readable medium for detection and avoidance (DAA) of victim services in ultra-wideband systems (UWB) 有权
标题翻译：用于超宽带系统（UWB）中受害者服务的检测和避免（DAA）的系统，方法和计算机可读介质
公开(公告)号：US07869529B2
公开(公告)日：2011-01-11
申请号：US11762659
申请日：2007-06-13
申请人： Sridhar Rajagopal , Brian C. Joseph , Syed N. Ahmed , Yaming Zhang , Sidney B. Schrum, Jr.
发明人： Sridhar Rajagopal , Brian C. Joseph , Syed N. Ahmed , Yaming Zhang , Sidney B. Schrum, Jr.
IPC分类号： H04K1/10
CPC分类号： H04L5/0046 , H04B1/719 , H04L5/0048 , H04L27/0006
摘要： A system for detection and avoidance of victim services in ultra-wideband (UWB) systems is provided. A detect and avoid module may calculate power averages of Orthogonal Frequency Division Multiplexing tones. The power of tones may be measured and compared with power averages of corresponding tones. If a measured tone power exceeds an average power of a corresponding tone by a dynamic threshold, the tone may be identified as associated with an interferer. The threshold may be inversely related to the gain level of an automatic gain control module. The UWB subsystem may be configured with known bands of victim services of other radio frequency systems, and a tone identified as associated with an interferer that is within a known victim service band may be identified as a victim service. The UWB subsystem may attenuate or otherwise suppress transmission within the victim service band to avoid interfering with the victim service.
摘要翻译：提供了一种用于在超宽带（UWB）系统中检测和避免受害者服务的系统。检测和避免模块可以计算正交频分复用音的功率平均值。可以测量音调的功率并将其与相应音调的功率平均值进行比较。如果测量的音调功率超过相应音调的平均功率通过动态阈值，则可以将音调识别为与干扰源相关联。阈值可能与自动增益控制模块的增益电平成反比。 UWB子系统可以配置有其他无线电频率系统的受害者服务的已知频带，并且可以将识别为与已知受害者服务频带内的干扰源相关联的音调识别为受害者服务。 UWB子系统可以衰减或以其他方式抑制受害者服务频带内的传输，以避免干扰受害者服务。

3. 发明申请

US20090180521A1 DETECTION OF INTERFERERS USING DIVERGENCE OF SIGNAL QUALITY ESTIMATES 有权
标题翻译：使用信号质量估计的差异检测干扰器
公开(公告)号：US20090180521A1
公开(公告)日：2009-07-16
申请号：US12014035
申请日：2008-01-14
申请人： Brian Chadwick Joseph , Sridhar Rajagopal , Syed Nadeem Ahmed , Yaming Zhang
发明人： Brian Chadwick Joseph , Sridhar Rajagopal , Syed Nadeem Ahmed , Yaming Zhang
IPC分类号： H04B1/707
CPC分类号： H04L5/0007 , H04B1/719
摘要： A method, system, and computer-readable medium for detecting an interferer in a wireless communication system are provided. The method includes receiving a signal having P tones, each of the P tones being associated with a frequency, determining a first signal quality of each of the P tones, determining a second signal quality of each of the P tones, and detecting the interferer that occupies the same frequency as one of the P tones based on the respective first signal quality and the respective second signal quality. The first signal quality and second signal quality behave differently when the interferer is present. The detecting the interferer includes determining a discrepancy in the behavior of the first signal quality and the second signal quality.
摘要翻译：提供了一种用于检测无线通信系统中的干扰源的方法，系统和计算机可读介质。该方法包括接收具有P个音调的信号，每个P音调与频率相关联，确定每个P音调的第一信号质量，确定每个P音调的第二信号质量，以及检测该干扰信号基于相应的第一信号质量和相应的第二信号质量，它们占据与P音调之一相同的频率。当干扰源存在时，第一信号质量和第二信号质量的行为不同。检测干扰源包括确定第一信号质量和第二信号质量的行为的差异。

4. 发明申请

US20070291636A1 System, Method and Computer-Readable Medium for Detection and Avoidance of Victim Services in Ultra-Wideband Systems 有权
标题翻译：用于在超宽带系统中检测和避免受害者服务的系统，方法和计算机可读介质
公开(公告)号：US20070291636A1
公开(公告)日：2007-12-20
申请号：US11762659
申请日：2007-06-13
申请人： Sridhar RAJAGOPAL , Brian C. JOSEPH , Syed N. AHMED , Yaming ZHANG , Sidney B. SCHRUM
发明人： Sridhar RAJAGOPAL , Brian C. JOSEPH , Syed N. AHMED , Yaming ZHANG , Sidney B. SCHRUM
IPC分类号： H04J11/00
CPC分类号： H04L5/0046 , H04B1/719 , H04L5/0048 , H04L27/0006
摘要： A system, method, and computer-readable medium for detection and avoidance of victim services in ultra-wideband systems is provided. A detect and avoid module may calculate power averages of OFDM tones. The power of tones may then be measured and compared with power averages of corresponding tones. If a measured tone power exceeds an average power of a corresponding tone by a dynamic threshold, the tone may be identified as associated with an interferer. The threshold may be inversely related to the gain level of an automatic gain control module. The ultra-wideband subsystem may be configured with known bands of victim services of other RF systems, and a tone identified as associated with an interferer that is within a known victim service band may be identified as a victim service. The UWB subsystem may attenuate or otherwise suppress transmission within the victim service band to avoid interfering with the victim service.
摘要翻译：提供了一种用于在超宽带系统中检测和避免受害者服务的系统，方法和计算机可读介质。检测和避免模块可以计算OFDM音调的功率平均值。然后可以测量音调的功率并将其与相应音调的功率平均值进行比较。如果测量的音调功率超过相应音调的平均功率通过动态阈值，则可以将音调识别为与干扰源相关联。阈值可能与自动增益控制模块的增益电平成反比。超宽带子系统可以配置有其他RF系统的已知的受害者服务频带，并且被识别为与已知的受害者服务频带内的干扰源相关联的音调可以被识别为受害者服务。 UWB子系统可以衰减或以其他方式抑制受害者服务频带内的传输，以避免干扰受害者服务。

5. 发明授权

US09148328B2 Digital I/Q imbalance compensation in a quadrature receiver 有权
标题翻译：正交接收机中的数字I / Q不平衡补偿
公开(公告)号：US09148328B2
公开(公告)日：2015-09-29
申请号：US13282288
申请日：2011-10-26
申请人： Yaming Zhang , John Alexander Interrante , William Hurley , Lup M. Loh
发明人： Yaming Zhang , John Alexander Interrante , William Hurley , Lup M. Loh
IPC分类号： H04L27/38 , H04B15/00
CPC分类号： H04L27/3863 , H03D3/009 , H04B1/123 , H04B15/00 , H04L25/08 , H04L27/2334 , H04L27/265 , H04L27/2666 , H04L27/2694
摘要： An apparatus and method reduce distortion in a processed signal. The apparatus includes a first receive path, a second receive path, a summation unit, and a compensation unit. The first receive path is configured to process a received analog signal into a first digital signal. The second receive path is configured to process the received analog signal with a phase shift into a second digital signal. The summation unit is configured to sum the first and second digital signals to form a processed digital signal. The compensation unit is configured to identify a conjugate of the processed digital signal, apply a weighting factor to the conjugate of the processed digital signal to form a weighted signal, and subtract the weighted signal from the processed digital signal to reduce the distortion.
摘要翻译：一种装置和方法减少处理信号中的失真。该装置包括第一接收路径，第二接收路径，求和单元和补偿单元。第一接收路径被配置为将接收到的模拟信号处理为第一数字信号。第二接收路径被配置为将接收的模拟信号以相移处理成第二数字信号。求和单元被配置为对第一和第二数字信号求和以形成经处理的数字信号。补偿单元被配置为识别经处理的数字信号的共轭，将加权因子应用于经处理的数字信号的共轭以形成加权信号，并从经处理的数字信号中减去加权信号以减少失真。

6. 发明申请

US20120106686A1 DIGITAL I/Q IMBALANCE COMPENSATION IN A QUADRATURE RECEIVER 有权
标题翻译：数字接收机中的数字I / Q不平衡补偿
公开(公告)号：US20120106686A1
公开(公告)日：2012-05-03
申请号：US13282288
申请日：2011-10-26
申请人： Yaming Zhang , John Alexander Interrante , William Hurley , Lup M. Loh
发明人： Yaming Zhang , John Alexander Interrante , William Hurley , Lup M. Loh
IPC分类号： H04B1/10
CPC分类号： H04L27/3863 , H03D3/009 , H04B1/123 , H04B15/00 , H04L25/08 , H04L27/2334 , H04L27/265 , H04L27/2666 , H04L27/2694
摘要： An apparatus and method reduce distortion in a processed signal. The apparatus includes a first receive path, a second receive path, a summation unit, and a compensation unit. The first receive path is configured to process a received analog signal into a first digital signal. The second receive path is configured to process the received analog signal with a phase shift into a second digital signal. The summation unit is configured to sum the first and second digital signals to form a processed digital signal. The compensation unit is configured to identify a conjugate of the processed digital signal, apply a weighting factor to the conjugate of the processed digital signal to form a weighted signal, and subtract the weighted signal from the processed digital signal to reduce the distortion.
摘要翻译：一种装置和方法减少处理信号中的失真。该装置包括第一接收路径，第二接收路径，求和单元和补偿单元。第一接收路径被配置为将接收到的模拟信号处理为第一数字信号。第二接收路径被配置为将接收的模拟信号以相移处理成第二数字信号。求和单元被配置为对第一和第二数字信号求和以形成经处理的数字信号。补偿单元被配置为识别经处理的数字信号的共轭，将加权因子应用于经处理的数字信号的共轭以形成加权信号，并从经处理的数字信号中减去加权信号以减少失真。

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