| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a radio receiver capable of increasing detection tolerance of transmitted packet with hopping, and reception control tolerance on hopping.SOLUTION: A radio receiver includes: a correlation calculation part 3 for calculating correlation using a preamble pattern of received preamble symbols and a predetermined preamble pattern; a packet detection part 4 for detecting a packet using the correlation calculation value, outputting estimated start position information on the preamble symbols, and extracting the maximum value in correlation calculation values of the preamble symbols transmitted from an estimated start position after detecting the packet; a hopping control part 6 for controlling reception for hopping on the basis of a hopping pattern and the estimated start position information; and a frequency hopping adjustment part 5 for directing the hopping control part 6 so that reception control in a predetermined hopping pattern matches with a band of subsequent preamble symbols if reception control is determined as inappropriate.</p> |
