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1. 发明授权

US06363131B1 Method and apparatus for joint timing synchronization and frequency offset estimation 失效
标题翻译：联合定时同步和频偏估计的方法和装置
公开(公告)号：US06363131B1
公开(公告)日：2002-03-26
申请号：US09109798
申请日：1998-07-02
申请人： Bassel F. Beidas , Yezdi F. Antia , Mohammad Soleimani
发明人： Bassel F. Beidas , Yezdi F. Antia , Mohammad Soleimani
IPC分类号： H04L700
CPC分类号： H04L7/042 , H04L27/22 , H04L2027/0065 , H04L2027/0093
摘要： A burst analyzer is useful in a digital communication system in which a signal burst has a plurality of reference segments distributed within the signal burst for transmission of a plurality of reference signals. The burst analyzer includes a filter that compares the received signal, for each reference segment thereof, with each reference signal offset by one of a plurality of time offsets to generate correlation data. The burst analyzer then determines, for each reference segment of the signal burst, a maximum correlation value from the correlation data for each time offset. Then the burst analyzer determines the time offset at which a sum of the maximum correlation values, over the plurality of reference segments, is a maximum. The burst analyzer jointly generates a frequency domain representation of the correlation data associated with the time offset at which the maximum correlation sum is a maximum, and then determines a frequency at which the frequency domain representation is a maximum.
摘要翻译：突发分析器在数字通信系统中是有用的，其中信号突发具有分布在信号突发内的多个参考段，用于传输多个参考信号。突发分析器包括一个滤波器，其对于每个参考信号段的接收信号与多个时间偏移中的一个偏移量的每个参考信号进行比较以产生相关数据。脉冲串分析器然后根据每个时间偏移的相关数据确定信号脉冲串的每个参考段的最大相关值。然后，脉冲串分析器确定在多个参考段上的最大相关值之和为最大值的时间偏移。突发分析器共同地产生与最大相关和为最大的时间偏移相关联的相关数据的频域表示，然后确定频域表示为最大的频率。

2. 发明授权

US06263031B1 Method and apparatus for signal burst classification 失效
标题翻译：信号突发分类的方法和装置
公开(公告)号：US06263031B1
公开(公告)日：2001-07-17
申请号：US09109799
申请日：1998-07-02
申请人： Bassel F. Beidas , A. Roger Hammons, Jr. , Yezdi F. Antia
发明人： Bassel F. Beidas , A. Roger Hammons, Jr. , Yezdi F. Antia
IPC分类号： H04L2706
CPC分类号： H04L7/042 , H04L27/22 , H04L2027/0065 , H04L2027/0093 , H04L2027/0095
摘要： A burst classifier is useful in a digital communication system transmitting a signal burst of a plurality of different burst types. The burst classifier includes a plurality of filters associated with the plurality of different burst types, respectively. Each filter generates correlation data based on the signal burst and a respective plurality of reference signals offset by a plurality of time offsets. The respective pluralities of reference signals are indicative of a corresponding burst type of the plurality of different burst types. A comparator then analyzes quantities based on the correlation data from each filter to determine the burst type of the signal burst.
摘要翻译：突发分类器在传输多种不同突发类型的信号突发的数字通信系统中是有用的。突发分类器分别包括与多个不同突发类型相关联的多个滤波器。每个滤波器基于信号脉冲串和由多个时间偏移偏移的相应多个参考信号来产生相关数据。相应的多个参考信号指示多个不同突发类型的相应突发类型。比较器然后基于来自每个滤波器的相关数据分析量，以确定信号脉冲串的脉冲串类型。

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