利用Kaveh法估计ARMA过程功率谱，只需计算AR系数，简化过程。-Kaveh estimation using ARMA process of the power spectrum, simply calculating AR coefficients, to simplify the process.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001031s ]
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:0.062986s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000931s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000832s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001138s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 173195 [ RunTime:0.016288s ]
