发明名称 |
FREQUENCY CORRECTION CIRCUIT, RADIO RECEIVING APPARATUS, AND FREQUENCY CORRECTION METHOD |
摘要 |
A radio receiving apparatus according to the present invention receives a preamble signal through one frequency band and also detects a periodic symbol timing in a receiving period of a part of a symbol that composes the preamble signal. A frequency correction circuit includes a generating unit, a detecting unit, and a correction unit. The generating unit generates a detection window of a predetermined time width including each of a first and a second symbol timing that are previously determined among the periodic symbol timings in the receiving period of a remaining symbol that composes the preamble signal. The detecting unit sequentially receives a correlation value between the preamble signal and a reference signal and detects a maximum value from the correlation value input during a period when the detection window is opened. The correction unit corrects a frequency deviation of the one frequency band based on the maximum value. |
申请公布号 |
US2012281791(A1) |
申请公布日期 |
2012.11.08 |
申请号 |
US201213460683 |
申请日期 |
2012.04.30 |
申请人 |
TSUCHIDA JUNYA;RENESAS ELECTRONICS CORPORATION |
发明人 |
TSUCHIDA JUNYA |
分类号 |
H04L27/00;H04B1/06 |
主分类号 |
H04L27/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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