function?dct_coef?=?get_dct_coeff（in_channel?out_channel）
????
????dct_coef?=?zeros（out_channel?in_channel）;
????sequence?=?0:?in_channel-1;
????for?i?=?1:?out_channel??????
????????dct_coef（i?:）?=?cos（?（2?*?sequence?+?1）?*?i?*?pi?/?（2?*?in_channel））;
????end
????
end