When more than 10 6 ( 3 , 2 ) parity check codes are used to estimate the snr of awgn channel and rayleigh fading channel , the estimation error is less than 1 % 在bpsk信號通過awgn信道和單徑瑞利信道下使用( 3 , 2 )碼估計(jì),當(dāng)統(tǒng)計(jì)的碼字?jǐn)?shù)達(dá)到106以上時(shí),估計(jì)誤差不會超過1 % 。
By comparing this algorithm with ( 3 , 2 ) and ( 7 , 6 ) parity check code , we find that the performance of short code is better than that of the longer one 本文通過( 3 , 2 )碼和( 7 , 6 )碼的估計(jì)性能比較,發(fā)現(xiàn)利用短碼的估計(jì)性能較好,而且隨著碼字個(gè)數(shù)統(tǒng)計(jì)的增加,估計(jì)性能會提高。
No policy level , except the application domain level , below the one containing this code group is considered when checking code group membership and granting permissions 在檢查代碼組成員和授予權(quán)限時(shí),不會考慮包含此代碼組的策略級別以下的、應(yīng)用程序域級別之外的其他任何策略級別。
Assign code to regions that are hidden or exposed , depending on the detail of the view for example , you can hide error - checking code when you want to analyze just the algorithm 為隱藏或?qū)ν獗┞兜膮^(qū)域分配代碼,這取決于視圖的詳細(xì)程度(例如,在只分析算法時(shí),就可以隱藏錯(cuò)誤檢查代碼) 。
Theory , 2002 , 48 : 1570 - 1579 . 5 kou y , lin s , fossorier m p c . low - density parity - check codes based on finite geometries : a rediscovery and new results . ieee trans Schwartz和vardy在2005年得到以下結(jié)果:任給校驗(yàn)矩陣h0 ,一定可以通過增加冗余行得到新的校驗(yàn)矩陣h使得停止距離s h達(dá)到上界d 。