发明名称 |
SYMBOL DETECTOR BASED ON FREQUENCY OFFSET COMPENSATION IN ZIGBEE SYSTEM AND SYMBOL DETECTING METHOD THEREOF |
摘要 |
The invention relates to a symbol detector for detecting symbols received in a receive modem of short-range wireless personal area network of a ZigBee system (IEEE 802.15.4). An OQPSK short-range wireless communication system according to the invention acquires frequency offset in a received signal using a symbol contained in a preamble of a packet of the signal, multi-delay-differentiates the signal by a plurality of predetermined delay times, and complex-conjugates the acquired frequency offset to eliminate the frequency offset. Then, the OQPSK short-range wireless communication system according to the invention correlates the received signal with a PN sequence delay-differentiated through the same process to detect the symbols corresponding to the received signal. |
申请公布号 |
US2007002937(A1) |
申请公布日期 |
2007.01.04 |
申请号 |
US20060427771 |
申请日期 |
2006.06.29 |
申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
发明人 |
MIN SANG HYUN;CHOI HYUNG JIN;HAN JUNG SU;DO JOO HYUN;PARK TAH JOON;LEE KWANG MOOK;CHO KOON SHIK;LEE U SANG |
分类号 |
H04B1/707 |
主分类号 |
H04B1/707 |
代理机构 |
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代理人 |
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地址 |
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