UWB超宽带信号的S-V模型生成，采用了802.15.3a的超宽带信道模型，生成不同信道（LOS，NLOS）下的S-V
ultra wideband signal（UWB）generation S-V model, using the 802.15.3a ultra wideband channel model under different channels (LOS, NLOS) to generate S-V
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.019600s ]
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:0.188640s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001431s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.007312s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001492s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.007173s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001156s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.011071s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.029079s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001239s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 14189 [ RunTime:0.014113s ]
