1) symbols of heavenly stems and earthly branches
![点击朗读](/dictall/images/read.gif)
干支符号
2) inter-symbol interference
![点击朗读](/dictall/images/read.gif)
符号间干扰
1.
The results of analysis and simulation indicate that BER performance of FDDD is always affected by inter-symbol interference (ISI), but in different channel environments, BER performance of FDDD is influenced by ISI to different extend.
在多径衰落信道条件下,分析了符号间干扰对频域差分正交频分复用系统误码率性能的影响,得到了误码率的解析表达式,分析和仿真的结果表明,频域差分的误码率性能受到符号间干扰的影响,但在不同的信道条件下,符号间干扰对系统性能的影响程度也有不同。
2.
When the data rates are more than several Mbps, the inter-symbol interference (ISI) is generated because the signal duration is shorter than the channel delay spread.
在高达几Mbps的传输速率下,由于传输符号的符号周期小于信道的时延扩展,从而产生符号间干扰(ISI)。
3.
Inter-symbol interference (ISI), which is traditionally eliminated by means of equalization technology, has been the focus in wireless communication.
符号间干扰(ISI)一直是无线通信领域研究的重点,传统的手段是采用各种均衡方法来消除。
3) intersymbol interference
![点击朗读](/dictall/images/read.gif)
符号间干扰
1.
Single carrier frequency domain equalization for eliminating intersymbol interference;
![点击朗读](/dictall/images/read.gif)
单载波频域均衡消除符号间干扰的研究
2.
The performance of the high symbol rate intersymbol interference(ISI) transmission with maximum likelihood sequence detection(MLSD) utilized at receiver is researched.
提出了信道编码的符号间干扰传输的最佳检测译码算法,即在接收信号检测和信道译码之间采用最大后验概率准则下的软入软出迭代检测译码。
4) ISI
![点击朗读](/dictall/images/read.gif)
符号间干扰
1.
A novel ISI cancellation scheme using Viterbi equalization algorithm in low processing gain CDMA systems;
低扩频比CDMA系统中符号间干扰抵消的Viterbi均衡算法研究
2.
The proposed SFBC can eliminate the detrimental inter-symbol interference (ISI) instead of sacrificing the diversity advantage, when the channel’s transfer functions to adjacent subcarriers are both equal and unequal.
在到达相邻子载波分别为相等信道增益和不等增益情况下给出的编解码方法能够完全地消除符号间干扰,且不以牺牲分集为代价。
5) inter symbol interference
![点击朗读](/dictall/images/read.gif)
符号间干扰
1.
In OFDM,cyclic prefix is inserted to the OFDM symbol to reduce inter symbol interference.
![点击朗读](/dictall/images/read.gif)
OFDM通过循环前缀来抑制符号间干扰。
6) sign of anti interference
![点击朗读](/dictall/images/read.gif)
抗干扰符号
补充资料:干支
以六十为周期的序数,用以纪日、纪年等。它以十天干:甲、乙、丙、丁、戊、己、庚、辛、壬、癸和十二地支:子、 丑、寅、 卯、辰、巳、午、未、申、酉、戌、亥顺序相配组成。从甲子、乙丑......直至癸亥(见附表)。干支在中国历法史上占有重要地位。早在殷商时代就使用六十干支纪日。一日一个干支名号,日复一日,循环使用,从不间断。中国的历史虽然很长,只要顺着干支往上推,历史日期就清清楚楚。这是中国古代创用干支法的功绩。在古代历法中也使用干支法,只要求出气、朔的干支,其余就一目了然。干支法不但用于纪日,还用于纪年(见岁星纪年)。古人也用十二地支纪时、纪月。地支纪时就是将一日均分为十二个时段,分别以十二地支表示,子时为现在的二十三点至一点,丑时为一点至三点,等等,称为十二时辰。地支纪月就是把冬至所在的月称为子月,下一个月称为丑月,等等。从《两千年中西历对照表》(生活·读书·新知三联书店1956年版)有西汉平帝元始元年(公元1年)以来二千年的年和日的干支。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条