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公开(公告)号:CN103873108A
公开(公告)日:2014-06-18
申请号:CN201310657231.5
申请日:2013-12-06
Applicant: 索尼公司
Inventor: 宝地卓
IPC: H04B1/7075 , H04J13/10
CPC classification number: H04B1/709 , H04B1/7075 , H04B2201/70715 , H04B2201/70728
Abstract: 一种通信设备,包括:多普勒偏移量计算单元,被配置为计算接收信号的多普勒偏移量,所述接收信号由人造卫星接收并通过以预定载波频率对使用预定扩频码进行了频谱扩散的信号进行调制而获得;采样间隔设置单元,被配置为对所述接收信号进行向下采样的采样间隔;向下采样单元,被配置为对接收信号进行向下采样;相干叠加单元,被配置为对接收信号执行相干叠加;扩频码生成单元,被配置为生成扩频码;以及相位检测单元,被配置为执行相干叠加的计算结果和生成的所述扩频码之间的相关性计算,并根据所述相关性计算的结果检测所述接收信号的所述扩频码的相位。
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公开(公告)号:CN1568592A
公开(公告)日:2005-01-19
申请号:CN02820020.9
申请日:2002-07-23
Applicant: 松下电器产业株式会社
CPC classification number: H04B1/711 , H04B1/707 , H04B1/7075 , H04B2201/70705 , H04B2201/70716 , H04B2201/70728 , H04J13/00 , H04L1/0003 , H04L1/0023 , H04L5/0007 , H04L5/0016 , H04L5/0044 , H04L5/0048 , H04L27/18 , H04L27/227 , H04L27/2602 , H04L27/2662 , H04L27/34 , H04L27/364 , H04L27/38 , H04L2027/004 , H04L2027/0061
Abstract: 在发送侧,在同一频带内多路复用已经经历扩展频谱处理的扩展调制信号与未经历扩展频谱处理的信息调制信号。在接收侧,特定调制信号首先由扩展频谱解调部件1803解调,然后由扩展频谱调制信号再生部件1805生成该特定调制信号的复制信号,并且通过从多路复用信号中消除该复制信号来抽取未经历扩展频谱处理的信息调制信号。通过此方式,即使当在同一频带内发生大量信息信号时,也可以在接收侧令人满意地分离并解调这些信号。
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公开(公告)号:CN108628388A
公开(公告)日:2018-10-09
申请号:CN201810212727.4
申请日:2018-03-15
Applicant: 安立股份有限公司
CPC classification number: H04B1/7087 , H04B2201/70728 , H04B2201/7073 , H04L7/0331
Abstract: 本发明能够通过向上扩频方式、向下扩频方式、中央扩频方式这所有扩频方式产生扩频时钟信号。一种扩频时钟产生器(2),其通过控制部(13)的控制将规定的载频的信号的频谱进行扩展来产生扩频时钟信号,该扩频时钟产生器(2)中,所述控制部具备载频校正控制机构(13b),所述载频校正控制机构将所述规定的载频错开,从而由一个扩频方式产生模拟的另一个扩频方式的扩频时钟信号。
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公开(公告)号:CN103873108B
公开(公告)日:2017-01-18
申请号:CN201310657231.5
申请日:2013-12-06
Applicant: 索尼半导体解决方案公司
Inventor: 宝地卓
IPC: H04B1/7075 , H04J13/10
CPC classification number: H04B1/709 , H04B1/7075 , H04B2201/70715 , H04B2201/70728
Abstract: 一种通信设备,包括:多普勒偏移量计算单元,被配置为计算接收信号的多普勒偏移量,所述接收信号由人造卫星接收并通过以预定载波频率对使用预定扩频码进行了频谱扩散的信号进行调制而获得;采样间隔设置单元,被配置为对所述接收信号进行向下采样的采样间隔;向下采样单元,被配置为对接收信号进行向下采样;相干叠加单元,被配置为对接收信号执行相干叠加;扩频码生成单元,被配置为生成扩频码;以及相位检测单元,被配置为执行相干叠加的计算结果和生成的所述扩频码之间的相关性计算,并根据所述相关性计算的结果检测所述接收信号的所述扩频码的相位。
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公开(公告)号:CN106487735A
公开(公告)日:2017-03-08
申请号:CN201510552924.7
申请日:2015-09-01
Applicant: 中兴通讯股份有限公司
Inventor: 魏继东
IPC: H04L27/26
CPC classification number: H04L25/0228 , H04B1/7103 , H04B2201/70728 , H04J13/00 , H04L25/0218 , H04L25/022 , H04L27/0014 , H04L27/2657 , H04L27/2672 , H04L27/2675 , H04L27/2695 , H04W56/0035 , H04L27/2691
Abstract: 本发明公开了一种频偏估计方法及装置,所述方法包括:对目标用户的信道估计值和非目标用户的信道估计值进行重构,得到目标用户的重构信道估计值和非目标用户的重构信道估计值;利用目标用户所占子载波的频域数据及相邻的非目标用户所占子载波的频域数据、目标用户的重构信道估计值和非目标用户的重构信道估计值,计算已消除干扰的目标用户的本地导频的频域接收数据;利用所述消除干扰的目标用户的本地导频及频域接收数据,确定频偏估计值。本发明在测量过程中有效的利用相邻子载波上泄漏过来的频域数据进行频偏测量,保证了梳妆分布或非连续分布情况下的单符号导频的频偏估计性能,并通过消除或消减用户间干扰,提升了频偏测量精度。
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公开(公告)号:CN1568592B
公开(公告)日:2013-07-03
申请号:CN02820020.9
申请日:2002-07-23
Applicant: 松下电器产业株式会社
IPC: H04L27/26 , H04B1/7075 , H04L1/00 , H04L5/00
CPC classification number: H04B1/711 , H04B1/707 , H04B1/7075 , H04B2201/70705 , H04B2201/70716 , H04B2201/70728 , H04J13/00 , H04L1/0003 , H04L1/0023 , H04L5/0007 , H04L5/0016 , H04L5/0044 , H04L5/0048 , H04L27/18 , H04L27/227 , H04L27/2602 , H04L27/2662 , H04L27/34 , H04L27/364 , H04L27/38 , H04L2027/004 , H04L2027/0061
Abstract: 在发送侧,在同一频带内多路复用已经经历扩频处理的扩频调制信号与未经历扩频处理的信息调制信号。在接收侧,特定调制信号首先由扩频解调部件1803解调,然后由扩频调制信号再生部件1805生成该特定调制信号的复制信号,并且通过从多路复用信号中消除该复制信号来抽取未经历扩频处理的信息调制信号。通过此方式,即使当在同一频带内发生大量信息信号时,也可以在接收侧令人满意地分离并解调这些信号。
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公开(公告)号:WO2003017547A1
公开(公告)日:2003-02-27
申请号:PCT/JP2002/007407
申请日:2002-07-23
Applicant: 松下電器産業株式会社 , 村上 豊 , 高林 真一郎 , 折橋 雅之 , 松岡 昭彦
IPC: H04J11/00
CPC classification number: H04B1/711 , H04B1/707 , H04B1/7075 , H04B2201/70705 , H04B2201/70716 , H04B2201/70728 , H04J13/00 , H04L1/0003 , H04L1/0023 , H04L5/0007 , H04L5/0016 , H04L5/0044 , H04L5/0048 , H04L27/18 , H04L27/227 , H04L27/2602 , H04L27/2662 , H04L27/34 , H04L27/364 , H04L27/38 , H04L2027/004 , H04L2027/0061
Abstract: On a transmission side, a spectrum−spread spread modulating signal is multiplexed with a spectrum−not−spread information modulating signal in the same frequency band, and, on a reception side, a spread−spectrum demodulating unit (1803) demodulates the spread modulating signal. Then, a spread−spectrum modulating signal reproducing unit (1805) generates a replica signal of the spread modulating signal and a subtraction unit (1807) removes the replica signal from a multiplexed signal to thereby extract an information signal not spectrum−spread. Accordingly, even when many information signals are transmitted in the same frequency band, they can be satisfactorily separated and demodulated on the reception side.
Abstract translation: 在发送侧,频谱扩展调制信号与相同频带的频谱不扩展信息调制信号复用,在接收侧,扩频解调部(1803)对扩频调制信号进行解调 信号。 然后,扩频调制信号再现部(1805)生成扩展调制信号的复制信号,减法部(1807)从多路复用信号中除去复制信号,从而提取不扩频的信息信号。 因此,即使在相同频带中发送许多信息信号,也能够在接收侧令人满意地分离和解调。
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公开(公告)号:WO2015105544A1
公开(公告)日:2015-07-16
申请号:PCT/US2014/057681
申请日:2014-09-26
Applicant: DEERE & COMPANY
Inventor: YU, Wei , KEEGAN, Richard, G.
IPC: H04B1/00
CPC classification number: H04B1/709 , G01S19/24 , G01S19/30 , H04B1/7075 , H04B1/70754 , H04B1/70755 , H04B1/7087 , H04B2201/70715 , H04B2201/70716 , H04B2201/70728 , H04B2201/7073 , H04L27/2663
Abstract: A data processor selects a set of BOC correlations in accordance with a BOC correlation function for the sampling period if the primary amplitude exceeds or equals the secondary amplitude for the sampling period. The data processor selects a set of QBOC correlations in accordance with a QBOC correlation function for the sampling period if the secondary amplitude exceeds the primary amplitude for the sampling period. The data processor uses either the BOC correlation function or the QBOC correlation function, whichever with greater amplitude, at each sampling period for carrier tracking. Further, the data processor, through combining two sets of BOC correlations with different chip spacings provides an alternative unambiguous code acquisition of the received signal.
Abstract translation: 如果主振幅超过或等于采样周期的次级振幅,则数据处理器根据采样周期的BOC相关函数来选择一组BOC相关。 如果次级振幅超过采样周期的主振幅,则数据处理器根据采样周期的QBOC相关函数来选择一组QBOC相关。 在每个采样周期,数据处理器使用BOC相关函数或QBOC相关函数(以较大振幅为准),用于载波跟踪。 此外,数据处理器通过组合具有不同芯片间隔的两组BOC相关性来提供接收信号的替代性明确代码获取。
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9.
公开(公告)号:WO2015105543A2
公开(公告)日:2015-07-16
申请号:PCT/US2014/057669
申请日:2014-09-26
Applicant: DEERE & COMPANY
Inventor: YU, Wei , KEEGAN, Richard, G.
IPC: H04L27/26
CPC classification number: H04B1/709 , G01S19/24 , G01S19/30 , H04B1/7075 , H04B1/70754 , H04B1/70755 , H04B1/7087 , H04B2201/70715 , H04B2201/70716 , H04B2201/70728 , H04B2201/7073 , H04L27/2663
Abstract: A data processor (192) selects a set of BOC correlations in accordance with a BOC correlation function for the sampling period if the primary amplitude exceeds or equals the secondary amplitude for the sampling period. The data processor (192) selects a set of QBOC correlations in accordance with a QBOC correlation function for the sampling period if the secondary amplitude exceeds the primary amplitude for the sampling period. The data processor (192) uses either the BOC correlation function or the QBOC correlation function, whichever with greater amplitude, at each sampling period to provide an aggregate correlation function that supports unambiguous code acquisition of the received signal.
Abstract translation: 如果主振幅超过或等于采样周期的次级振幅,则数据处理器(192)根据采样周期的BOC相关函数选择一组BOC相关。 如果次级振幅超过采样周期的主振幅,则数据处理器(192)根据采样周期的QBOC相关函数选择一组QBOC相关。 在每个采样周期,数据处理器(192)使用BOC相关函数或QBOC相关函数(以较大振幅为准)来提供支持接收信号的明确代码获取的聚合相关函数。
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10.
公开(公告)号:WO2015105543A3
公开(公告)日:2015-09-03
申请号:PCT/US2014057669
申请日:2014-09-26
Applicant: DEERE & CO
Inventor: YU WEI , KEEGAN RICHARD G
IPC: H04L27/06
CPC classification number: H04B1/709 , G01S19/24 , G01S19/30 , H04B1/7075 , H04B1/70754 , H04B1/70755 , H04B1/7087 , H04B2201/70715 , H04B2201/70716 , H04B2201/70728 , H04B2201/7073 , H04L27/2663
Abstract: A data processor (192) selects a set of BOC correlations in accordance with a BOC correlation function for the sampling period if the primary amplitude exceeds or equals the secondary amplitude for the sampling period. The data processor (192) selects a set of QBOC correlations in accordance with a QBOC correlation function for the sampling period if the secondary amplitude exceeds the primary amplitude for the sampling period. The data processor (192) uses either the BOC correlation function or the QBOC correlation function, whichever with greater amplitude, at each sampling period to provide an aggregate correlation function that supports unambiguous code acquisition of the received signal.
Abstract translation: 如果主振幅超过或等于采样周期的次振幅,则数据处理器(192)根据采样周期的BOC相关函数选择一组BOC相关。 如果次振幅超过采样周期的主振幅,则数据处理器(192)根据采样周期的QBOC相关函数选择一组QBOC相关。 数据处理器(192)在每个采样周期使用BOC相关函数或QBOC相关函数(无论哪一个具有较大幅度)来提供支持接收信号的明确代码获取的聚合相关函数。
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