| 发明名称 |
Preamble detection based on repeated preamble codes |
| 摘要 |
Systems, methods, and other embodiments associated with preamble detection based on repeated preamble codes are described. According to one embodiment, an apparatus is provided that wirelessly receives a signal and calculates a differential output corresponding to a multiplication of the signal and a delayed version of the signal. A cross correlation is performed between the differential output and a known preamble pattern to produce a cross correlation output. One or more peaks are detected in the cross correlation. The detected peaks are used in subsequent processing to detect the known preamble pattern in the wirelessly received signal. |
| 申请公布号 |
US8989321(B1) |
申请公布日期 |
2015.03.24 |
| 申请号 |
US201314052927 |
申请日期 |
2013.10.14 |
| 申请人 |
Marvell International Ltd |
发明人 |
Zhou Quan;Wu Songping;Yu Daxiao |
| 分类号 |
H03D1/00;H04L27/06 |
主分类号 |
H03D1/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An apparatus, comprising:
a differential computation logic configured to calculate a differential output corresponding to a multiplication of i) samples of a wirelessly received signal and ii) a delayed version of the samples; a preamble matching logic configured to perform a cross correlation between the differential output and a known preamble pattern to produce a cross correlation output; and a peak detection logic configured to detect peaks in the cross correlation output, wherein the detected peaks are used in subsequent processing to detect the known preamble pattern in the wirelessly received signal. |
| 地址 |
BM |
