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    • 5. 发明申请
    • METHOD AND SYSTEM FOR DETERMINING A TIME DIFFERENCE, METHOD AND SYSTEM FOR FINDING A POSITION OF A TRANSMITTER
    • 用于确定时间差异的方法和系统,用于发现发射机位置的方法和系统
    • US20130106657A1
    • 2013-05-02
    • US13723362
    • 2012-12-21
    • Innovationszentrum fuer Telekommunikationstechnik GmbH IZT
    • Rainer PERTHOLDDieter WENINGER
    • G01S5/04
    • G01S5/04G01S5/021G01S5/06
    • A method for determining a time difference between a first and a second time of arrival of the signal is described, the method including: receiving a first representation of the signal at the first time of arrival; receiving a second representation of the signal at the second time of arrival; correlating at least a first time-domain representation of the signal and a second time-domain representation of the signal to obtain a first time difference information; evaluating a phase difference relation between a first frequency-domain representation of the signal and a second frequency-domain representation of the signal to obtain a second time difference information; and determining the time difference between the first and the second time of arrival of the signal based on the first and the second time difference information, or based on a time difference information derived from the first time difference information and the second time difference information.
    • 描述了用于确定信号到达的第一和第二时间之间的时间差的方法,所述方法包括:在到达的第一时间接收信号的第一表示; 在第二次到达时接收信号的第二表示; 将所述信号的至少第一时域表示与所述信号的第二时域表示相关联以获得第一时间差信息; 评估所述信号的第一频域表示与所述信号的第二频域表示之间的相位差关系,以获得第二时间差信息; 以及基于第一和第二时间差信息确定信号的第一和第二时间到达之间的时间差,或者基于从第一时间差信息和第二时间差信息导出的时间差信息。
    • 6. 发明申请
    • APPARATUS AND METHOD FOR CONVERTING AN ANALOG TIME DOMAIN SIGNAL INTO A DIGITAL FREQUENCY DOMAIN SIGNAL, AND APPARATUS AND METHOD FOR CONVERTING AN ANALOG TIME DOMAIN SIGNAL INTO A DIGITAL TIME DOMAIN SIGNAL
    • 将模拟时域信号转换为数字频域信号的装置和方法,以及将模拟时域信号转换为数字时域信号的装置和方法
    • US20130039451A1
    • 2013-02-14
    • US13629220
    • 2012-09-27
    • Innovationszentrum fuer Telekommunikationstechn
    • Rainer PERTHOLD
    • H04B1/14
    • H03M1/0678G01R23/16H03M1/121
    • An apparatus for converting an analog signal into a digital signal includes: two identical analog-to-digital-converters converting the analog signal into first and second digital time domain signals; first and second transformation units transforming the first and second digital time domain signals into first and second digital frequency domain signals; a frequency compensation unit modifying the second frequency signal to reduce a difference between wanted signal components of the second and first frequency values caused by a difference between frequency responses of the analog-to-digital converters; a comparison unit determining for a same frequency bin corresponding first and second energy values associated to corresponding frequency values of the first and second digital frequency domain signal, and determining a minimum energy value thereof; and a selection unit selecting for a same frequency bin of the digital frequency domain signal the digital frequency domain signal associated to the minimum energy value.
    • 一种用于将模拟信号转换为数字信号的装置包括:将模拟信号转换为第一和第二数字时域信号的两个相同的模 - 数转换器; 第一和第二变换单元将第一和第二数字时域信号变换为第一和第二数字频域信号; 频率补偿单元,修改所述第二频率信号以减少由所述模数转换器的频率响应之间的差引起的所述第二和第一频率值的有用信号分量之间的差; 比较单元确定与第一和第二数字频域信号的对应频率值相关联的相应频率仓对应的第一和第二能量值,并确定其最小能量值; 并且选择单元选择数字频域的相同频率仓信号与最小能量值相关联的数字频域信号。
    • 10. 发明授权
    • Method and system for determining a time difference, method and system for finding a position of a transmitter
    • 用于确定时差的方法和系统,用于找到发射机位置的方法和系统
    • US09063215B2
    • 2015-06-23
    • US13723362
    • 2012-12-21
    • Innovationszentrum fuer Telekommunikationstechnik GmbH IZT
    • Rainer PertholdDieter Weninger
    • G01S5/04G01S5/02G01S5/06
    • G01S5/04G01S5/021G01S5/06
    • A method for determining a time difference between a first and a second time of arrival of the signal is described, the method including: receiving a first representation of the signal at the first time of arrival; receiving a second representation of the signal at the second time of arrival; correlating at least a first time-domain representation of the signal and a second time-domain representation of the signal to obtain a first time difference information; evaluating a phase difference relation between a first frequency-domain representation of the signal and a second frequency-domain representation of the signal to obtain a second time difference information; and determining the time difference between the first and the second time of arrival of the signal based on the first and the second time difference information, or based on a time difference information derived from the first time difference information and the second time difference information.
    • 描述了用于确定信号到达的第一和第二时间之间的时间差的方法,所述方法包括:在到达的第一时间接收信号的第一表示; 在第二次到达时接收信号的第二表示; 将所述信号的至少第一时域表示与所述信号的第二时域表示相关联以获得第一时间差信息; 评估所述信号的第一频域表示与所述信号的第二频域表示之间的相位差关系,以获得第二时间差信息; 以及基于第一和第二时间差信息确定信号的第一和第二时间到达之间的时间差,或者基于从第一时间差信息和第二时间差信息导出的时间差信息。