| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a wireless receiving apparatus capable of keeping the level of an intermediate frequency (IF) signal constant at a receiving side, without being affected by frequency characteristics of an entire path from a transmitting apparatus to the wireless receiving apparatus, when performing high-speed frequency hopping communication in which a center frequency is changed for each symbol. <P>SOLUTION: The wireless receiving apparatus performs frequency hopping communication in which a center frequency is changed for each symbol, and includes: a frequency converter 13 for converting a received high-frequency signal into an IF signal; a level detector 15 for detecting a level of the IF signal converted by the frequency converter 13; level storage sections 17a to 17c each for storing the level of the IF signal detected by the level detector 15 for each center frequency; and an IF variable gain amplifier 14 for amplifying the IF signal, wherein a gain of the IF variable gain amplifier 14 is controlled in accordance with the levels of the center frequency stored in the level storage sections 17a to 17c. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
