文章通过仿真比较了线性均衡器和判决反馈均衡器在通信系统中的性能-Comparison of the article through the simulation of linear equalizer and decision feedback equalizer in the communication system performance
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.005193s ]
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:0.094508s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002567s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002297s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002448s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005589s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002492s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.006429s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.025608s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003180s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 119907 [ RunTime:0.001653s ]
