用Matlab来实现Kalman滤波器,此种可用于卫星导航系统，还可用于其它对踊跃比较严格的场合-using Matlab to achieve Kalman filter can be used for such a satellite navigation system can be used for other more enthusiastic strict occasions! !
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001089s ]
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:0.069341s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001162s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001279s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001197s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003703s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001032s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004018s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014937s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001083s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 34425 [ RunTime:0.171916s ]
