专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08588346B2 Doppler frequency estimation system and method 失效
标题翻译：多普勒频率估计系统及方法
公开(公告)号：US08588346B2
公开(公告)日：2013-11-19
申请号：US12801165
申请日：2010-05-26
申请人： Kai-Jie Yang , Shin-Yuan Wang , Weily Kuo
发明人： Kai-Jie Yang , Shin-Yuan Wang , Weily Kuo
IPC分类号： H04L27/06
CPC分类号： H04L25/0202 , H04L25/0222
摘要： A Doppler frequency estimation system includes a basis projector, a polynomial generator and an extreme value determinator. The basis projector receives and projects multiple channel sampling signals to a set of orthogonal bases to thereby generate multiple channel correlation vectors. The polynomial generator is connected to the basis projector in order to produce a target polynomial based on the channel correlation vectors, an estimated channel-envelope-to-noise-plus-interference power-ratio and a channel-envelope power. The extreme value determinator is connected to the polynomial generator in order to determine an extreme value of the polynomial and output a frequency corresponding to the extreme value as an estimated Doppler frequency.
摘要翻译：多普勒频率估计系统包括基本投影仪，多项式发生器和极值确定器。基准投影仪将多个通道采样信号接收并投影到一组正交基底，从而生成多个信道相关向量。多项式发生器连接到基本投影仪，以便基于信道相关向量，估计的信道包络到噪声加干扰功率比和信道包络功率产生目标多项式。极值确定器连接到多项式发生器，以便确定多项式的极值，并输出与极值对应的频率作为估计的多普勒频率。

2. 发明申请

US20100303177A1 Doppler frequency estimation system and method 失效
标题翻译：多普勒频率估计系统及方法
公开(公告)号：US20100303177A1
公开(公告)日：2010-12-02
申请号：US12801165
申请日：2010-05-26
申请人： Kai-Jie Yang , Shin-Yuan Wang , Weily Kuo
发明人： Kai-Jie Yang , Shin-Yuan Wang , Weily Kuo
IPC分类号： H04L27/00
CPC分类号： H04L25/0202 , H04L25/0222
摘要： A Doppler frequency estimation system includes a basis projector, a polynomial generator and an extreme value determinator. The basis projector receives and projects multiple channel sampling signals to a set of orthogonal bases to thereby generate multiple channel correlation vectors. The polynomial generator is connected to the basis projector in order to produce a target polynomial based on the channel correlation vectors, an estimated channel-envelope-to-noise-plus-interference power-ratio and a channel-envelope power. The extreme value determinator is connected to the polynomial generator in order to determine an extreme value of the polynomial and output a frequency corresponding to the extreme value as an estimated Doppler frequency.
摘要翻译：多普勒频率估计系统包括基本投影仪，多项式发生器和极值确定器。基准投影仪将多个通道采样信号接收并投影到一组正交基底，从而生成多个信道相关向量。多项式发生器连接到基本投影仪，以便基于信道相关向量，估计的信道包络到噪声加干扰功率比和信道包络功率产生目标多项式。极值确定器连接到多项式发生器，以便确定多项式的极值，并输出与极值对应的频率作为估计的多普勒频率。

3. 发明授权

US07650153B2 System and method for transmission diversity status detection 有权
标题翻译：用于传输分集状态检测的系统和方法
公开(公告)号：US07650153B2
公开(公告)日：2010-01-19
申请号：US11304709
申请日：2005-12-16
申请人： Weily Kuo
发明人： Weily Kuo
IPC分类号： H04W72/00 , H04L27/00
CPC分类号： H04B7/0689
摘要： A system and method for transmission diversity status detection is disclosed, which receives a synchronization channel (SCH) signal and a common pilot channel (CPICH) signal from a base station for detecting whether the base station uses the transmission diversity technique. The transmission diversity status detector detects the transmission diversity status of the base station by detecting the modulation of SCH symbols coherently. The phase references for coherent detection of SCH symbols are extracted from the despreaded CPICH signal. To detect the odd-numbered SCH symbols coherently, the detector applies all phase references of different antennas on odd-numbered SCH symbols and performs selection in the final decision flow. The detector also contains the Time Switched Transmit Diversity (TSTD) filters, designed based on a dependency between the modulation of SCH symbols and the transmit antenna of SCH signals, to improve the signal-to-noise ratio of SCH symbols.
摘要翻译：公开了一种用于发送分集状态检测的系统和方法，其从基站接收同步信道（SCH）信号和公共导频信道（CPICH）信号，用于检测基站是否使用传输分集技术。发送分集状态检测器通过相关地检测SCH符号的调制来检测基站的发送分集状态。从解扩的CPICH信号中提取用于SCH符号的相干检测的相位参考。为了相互检测奇数SCH符号，检测器将奇数SCH符号的不同天线的所有相位基准应用于最终决策流中进行选择。检测器还包含基于SCH符号的调制与SCH信号的发送天线之间的依赖性设计的时间切换发射分集（TSTD）滤波器，以提高SCH符号的信噪比。

4. 发明申请

US20060233139A1 System and method for transmission diversity status detection 有权
标题翻译：用于传输分集状态检测的系统和方法
公开(公告)号：US20060233139A1
公开(公告)日：2006-10-19
申请号：US11304709
申请日：2005-12-16
申请人： Weily Kuo
发明人： Weily Kuo
IPC分类号： H04B7/216
CPC分类号： H04B7/0689
摘要： A system and method for transmission diversity status detection is disclosed, which receives a synchronization channel (SCH) signal and a common pilot channel (CPICH) signal from a base station for detecting whether the base station uses the transmission diversity technique. The transmission diversity status detector detects the transmission diversity status of the base station by detecting the modulation of SCH symbols coherently. The phase references for coherent detection of SCH symbols are extracted from the despreaded CPICH signal. To detect the odd-numbered SCH symbols coherently, the detector applies all phase references of different antennas on odd-numbered SCH symbols and performs selection in the final decision flow. The detector also contains the Time Switched Transmit Diversity (TSTD) filters, designed based on a dependency between the modulation of SCH symbols and the transmit antenna of SCH signals, to improve the signal-to-noise ratio of SCH symbols.
摘要翻译：公开了一种用于发送分集状态检测的系统和方法，其从基站接收同步信道（SCH）信号和公共导频信道（CPICH）信号，用于检测基站是否使用传输分集技术。发送分集状态检测器通过相关地检测SCH符号的调制来检测基站的发送分集状态。从解扩的CPICH信号中提取用于SCH符号的相干检测的相位参考。为了相互检测奇数SCH符号，检测器将奇数SCH符号的不同天线的所有相位基准应用于最终决策流中进行选择。检测器还包含基于SCH符号的调制和SCH信号的发射天线之间的依赖性设计的时间切换发射分集（TSTD）滤波器，以提高SCH符号的信噪比。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式