给出了利用OFDM实现UWB的源代码及实例。包括从信源、信道、接收等，是一个完整的系统，接口方便，容易学习使用。-given by using OFDM UWB achieve the source code and examples. Letter from the source, channel, the receiver, is a complete system interface easy to learn to use.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001137s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.059680s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001024s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001191s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000918s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003143s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000947s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003705s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.013889s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001110s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 7731 [ RunTime:0.021676s ]
