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    • 2. 发明授权
    • Processing samples of a received RF signal
    • 处理接收的RF信号的样本
    • US09054856B2
    • 2015-06-09
    • US13982317
    • 2011-02-07
    • Fabio BelloniVille RankiAndreas RichterNeelabh Kashyap
    • Fabio BelloniVille RankiAndreas RichterNeelabh Kashyap
    • H04L7/00H04L7/04G01S3/46H04B7/08H04L27/26
    • H04L7/042G01S3/46H04B7/0822H04B7/0842H04L27/2659H04L27/2676
    • An exemplary apparatus includes: means configured to obtain a set of plural samples of signals, the set comprising at least one sample for each of L antenna elements of a receiver, where L is an integer greater than two and where the samples are of an RF signal that has been downconverted by a downconversion frequency; means configured, for each antenna element, to perform autocorrelation on the samples relating to that antenna element; means configured to sum the results of autocorrelation for all antenna elements; means configured to convert the summed results into the frequency domain; means configured to determine a maximum value of the summed results in the frequency domain; and means configured to use the determined maximum value to provide an output indicative of an offset between a carrier of the RF signal and the downconversion frequency.
    • 示例性装置包括:被配置为获得一组多个信号样本的装置,该组包括接收机的L个天线元件中的每一个的至少一个样本,其中L是大于2的整数,并且样本是RF 信号已被下转换频率下变频; 为每个天线元件配置的对与该天线元件相关的样本执行自相关的装置; 用于对所有天线元件的自相关结果求和的装置; 被配置为将求和结果转换成频域的装置; 用于确定所述频域中求和结果的最大值的装置; 以及被配置为使用所确定的最大值来提供指示RF信号的载波与下变频频率之间的偏移的输出的装置。
    • 3. 发明申请
    • Processing Samples of a Received RF Signal
    • 处理接收RF信号的样本
    • US20130315353A1
    • 2013-11-28
    • US13982317
    • 2011-02-07
    • Fabio BelloniVille RankiAndreas RichterNeelabh Kashyap
    • Fabio BelloniVille RankiAndreas RichterNeelabh Kashyap
    • H04L7/04
    • H04L7/042G01S3/46H04B7/0822H04B7/0842H04L27/2659H04L27/2676
    • Apparatus comprises: means configured to obtain a set of plural samples of signals, the set comprising at least one sample for each of L antenna elements of a receiver, where L is an integer greater than two and where the samples are of an RF signal that has been downconverted by a downconversion frequency; means configured, for each antenna element, to perform autocorrelation on the samples relating to that antenna element; means configured to sum the results of autocorrelation for all antenna elements; means configured to convert the summed results into the frequency domain; means configured to determine a maximum value of the summed results in the frequency domain; and means configured to use the determined maximum value to provide an output indicative of an offset between a carrier of the RF signal and the downconversion frequency. Another apparatus comprises: means configured to obtain a set of plural samples of signals, the set comprising k samples for each of L antenna elements of a receiver, where L is an integer greater than two and where the samples are of an RF signal that has been downconverted by a downconversion frequency; means configured, for each antenna element, to convert vectors provided by the samples relating to that antenna element into frequency domain vectors and to square the frequency domain vectors; means configured to sum the squared frequency domain vectors for all antenna elements; means configured to determine a maximum value of the summed results in the frequency domain; and means configured to use the determined maximum value to provide an output indicative of an offset between a carrier of the RF signal and the downconversion frequency.
    • 装置包括:被配置为获得一组多个信号样本的装置,所述装置包括接收机的L个天线元件中的每一个的至少一个样本,其中L是大于2的整数,并且样本是RF信号, 已下调转换频率; 为每个天线元件配置的对与该天线元件相关的样本执行自相关的装置; 用于对所有天线元件的自相关结果求和的装置; 被配置为将求和结果转换成频域的装置; 用于确定所述频域中求和结果的最大值的装置; 以及被配置为使用所确定的最大值来提供指示RF信号的载波与下变频频率之间的偏移的输出的装置。 另一装置包括:被配置为获得一组多个信号样本的装置,该组包括接收机的L个天线元件中的每一个的k个样本,其中L是大于2的整数,并且其中样本是具有 被下转换频率下转换; 用于每个天线元件的装置将由与该天线元件相关的样本提供的矢量转换成频域矢量并平方频域矢量; 用于对所有天线元素求平均频域矢量的装置; 用于确定所述频域中求和结果的最大值的装置; 以及被配置为使用所确定的最大值来提供指示RF信号的载波与下变频频率之间的偏移的输出的装置。