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1. 发明申请

US20100158165A1 PARALLEL AUTOMATIC FREQUENCY OFFSET ESTIMATION METHOD AND APPARATUS 有权
标题翻译：并行自动频率偏移估计方法和装置
公开(公告)号：US20100158165A1
公开(公告)日：2010-06-24
申请号：US12579840
申请日：2009-10-15
申请人： Seung-il MYONG , Jong-sub CHA , Hoe-sung YANG , Kang-bok LEE , Heyung-sub LEE , Jong-suk CHAE
发明人： Seung-il MYONG , Jong-sub CHA , Hoe-sung YANG , Kang-bok LEE , Heyung-sub LEE , Jong-suk CHAE
IPC分类号： H04L7/00 , H04L27/06
CPC分类号： H04L27/0014 , H04L2027/0026 , H04L2027/0046
摘要： Disclosed is a wireless signal receiving apparatus, and more particularly, disclosed is a parallel automatic frequency offset estimation apparatus and method for tracking a frequency offset in an early stage by calculating, in parallel, frequency offsets of a received signal. The parallel automatic frequency offset estimation apparatus includes a receiving unit to receive a data frame; and a frequency offset estimation unit to calculate, in parallel, frequency and phase deviations at different bit intervals within a particular section of the received data frame, to add together the frequency and phase deviations to obtain a first sum of the frequency and phase deviations, and to add the first sum to a frequency phase deviation calculated for each bit after the particular section in the received data frame to obtain a second sum of the frequency and phase deviations. Accordingly, transmission frequency tracking can be performed at higher speed, compared to the conventional systems in which frequency offset acquisition is carried out in stages. Also, accurate tracking of a transmission frequency is possible in an initial frame.
摘要翻译：公开了一种无线信号接收装置，更具体地，公开了一种并行自动频率偏移估计装置和方法，用于通过并行计算接收信号的频率偏移来跟踪早期的频率偏移。并行自动频率偏移估计装置包括：接收单元，用于接收数据帧; 以及频率偏移估计单元，用于并行地计算在接收数据帧的特定部分内的不同比特间隔处的频率和相位偏差，以将频率和相位偏差相加以获得频率和相位偏差的第一和，并且将第一和加到针对接收数据帧中的特定部分之后的每个比特计算的频率相位偏移，以获得频率和相位偏差的第二和。因此，与分阶段进行频率偏移获取的常规系统相比，可以以更高的速度执行传输频率跟踪。此外，在初始帧中可以准确地跟踪传输频率。

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