让的 s [n] 是损坏所导致的噪声信号的随机噪声 d [n] 的信号
x [n] = [n] s + d [n]。目的是要动手术 x [n] 来生成一个信号 y [n] 是
到 s [n] 的合理近似值。一个简单的方法是生成的输出样本
平均每场周围样品在即时 n 的输入样本的数目。
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SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.023208s ]
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:0.104589s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000943s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001204s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000994s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003258s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000839s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003811s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015049s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001599s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 328689 [ RunTime:0.024860s ]
