3 MATLAB functions for simulation of OFDM signal in Rayleigh fading channel. Including models for OFDM frame generating, cyclic prefix, pramble, as well as model for Rayleigh channel, QAM modulation function and a example of test process.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001139s ]
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:0.080685s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000906s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001301s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001021s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003437s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000824s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003754s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014709s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001125s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 354314 [ RunTime:0.035078s ]
