发明名称 |
NON-COHERENT DETECTION APPARATUS AND METHOD FOR IEEE 802.15.4 LR-WPAN BPSK RECEIVER |
摘要 |
A non-coherent detection apparatus includes, inter alia, a correlation unit, a frequency offset estimator, and a signal detector. The correlation unit obtains a differential phase signal by multiplying a complex conjugate value of a delay signal obtained by delaying a received signal by (N+1) chips by the received signal, sums-up resultant values obtained by multiplying each component of the differential phase signal by each component of a correlation sequence and outputs a correlation signal. The frequency offset estimator estimates a frequency offset based on a value obtained by accumulatively summing-up the correlation signals corresponding to preamble portions of the received signal. The signal detector detects an original signal from the received signal based on a size of a real-number part of a resultant value obtained by multiplying the frequency offset estimated by the frequency offset estimator by the correlation signal corresponding to a PHY payload portion of the received signal. |
申请公布号 |
EP2420032(A4) |
申请公布日期 |
2015.10.21 |
申请号 |
EP20100764637 |
申请日期 |
2010.04.13 |
申请人 |
CHUNG-ANG UNIVERSITY INDUSTRY-ACADEMY COOPERATIONFOUNDATION |
发明人 |
CHANG, TAE-GYU;JEON, HYEON-JIN;DEMEECHAI, TANEE |
分类号 |
H04L27/233 |
主分类号 |
H04L27/233 |
代理机构 |
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地址 |
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