AC一3编码 图1为AC一3编码器的框图。输入的PCM时间样本 信号首先进行加窗处理,加窗处理的目的在于降低块边界 效应对谱分析的影响,同时提高频率选择性。经过加窗处 理后的时域样本信号再经过分析滤波器组(时频变换MD. CT)被变换为频域的一组频谱信号,频谱信号以二进制浮点 方式表示,即将频谱信号分为指数和尾数两部分分别进行
Keywords:AC-3;Bitallocation;algorithm 完整的AC-3音频系统由编码器和解码器两部分组成。一 种典型的编码器框图如图1所示,这是在一定程度上抽象出来 的一种结构。 PCM时间样值 频谱包络 编码 t匕特分配 尾数量化 比特分配信息 t袋 AC-3帧格式化 编码的AC-3 ...
}*/#include<iostream>#include<cstring>#include<algorithm>usingnamespacestd;intN, V;//物品数和背包容量constintNUM =1005;intdp[NUM];intmain() { cin>> N >>V;for(inti =0; i < N; i++) {intv, w; cin>> v >>w;for(intj = v; j <= V; j++)//枚举所有的体积dp[j] = max(d...
# sysname Router_1 # vlan batch 100 to 101 # dhcp enable # acl number 3101 rule 5 permit ip source 10.23.100.0 0.0.0.255 destination 10.23.200.0 0.0.0.255 # ipsec proposal tran1 esp authentication-algorithm sha2-256 esp encryption-algorithm aes-128 # ike proposal 5 encryption-algorithm aes...
Public Key Algorithm: rsaEncryption Public-Key: (4096 bit) Modulus: 00:d3:12:fe:57:48:c6:a5:10:12:e9:2f:f9:2a:ff: 7b:2a:d8:45:69:11:c4:85:30:c4:9a:4d:0f:ad:58: e7:56:cd:5c:f0:18:e1:c3:6d:44:c2:c3:5e:64:22: d1:28:c9:c3:37:3c:34:ed:28:04:7f:62:9e:8b...
integrity-algorithm hmac-sha2-256 prf hmac-sha2-256 free-rule-template name default_free_rule portal-access-profile name portal_access_profile aaa authentication-scheme default authentication-scheme radius authentication-mode radius authorization-scheme default ...
3 4 #include <vector> 5 #include <queue> 6 #include <algorithm> 7 #include <functional> 8 #include <string> 9 #include <cstdio> 10 using namespace std; 11 12 13 #define AC_FAIL_STATE -1 14 #define AC_UNDEF_FAIL -1 15 #define AC_CONT_SIZE 256 ...
3.上单系统中的实现 在美团上单系统中,待匹配的关键词根据产品类别进行分组,不同品类之间的关键词具有重叠。如果针对每个品类生成一棵状态转移树固然可行,但是随着品类的增多,对内存的使用也会随之增高。考虑到AC算法的时间复杂度与关键词的数量无关,因此可以考虑将所有品类的关键词构造在同一棵状态转移树中,每次进行...
integrity-algorithm hmac-sha2-256 prf hmac-sha2-256 # free-rule-template name default_free_rule # portal-access-profile name portal_access_profile # aaa authentication-scheme default authentication-scheme radius authentication-mode radius authorization-scheme default ...
Hawkins PCD, Skillman AG, Warren GL, et al. Conformer generation with OMEGA: Algorithm and validation using high quality structures from the protein databank and cambridge structural database. Journal of Chemical Information and Modeling 2010; 50:572–584 ...