这是我收集的几个通信基础理论的Matlab仿真实现,包括bpsk、qpsk、ofdm以及信号衰减和延迟的仿真。尽管不是我本人原创,但比较都经典。文件为*.m格式-This is my collection of several communications infrastructure theory Matlab Simulation, including BPSK, QPSK, and the OFDM signal attenuation and delay in the simulation. Although it was not my original, but more are classics. M*. document format
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001057s ]
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:0.077216s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000932s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001128s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000923s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003257s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000784s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003688s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.021919s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001123s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 34751 [ RunTime:0.015370s ]