该程序用以对2FSK信号调制解调的仿真程序,信道为高斯白噪声,采用FFT方法对其解调-procedures for the right 2FSK signal modulation and demodulation of the simulation program, channel for white Gaussian noise, FFT method demodulation
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002192s ]
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:0.086597s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002522s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002146s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002548s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003939s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002385s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004771s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.021703s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003173s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 199553 [ RunTime:0.001291s ]