1) PC-OFDM
排列组合正交频分复用
1.
A novel system named parallel combinatory/high compaction multi-carrier modulation(PC/HC-MCM) system was proposed based on techniques of high compaction multi-carrier modulation(HC-MCM) and parallel combinatory OFDM(PC-OFDM).
提出一种基于高压缩多载波调制(HC-MCM,high compaction multi-carrier modulation)技术和排列组合正交频分复用(PC-OFDM,parallel combinatory OFDM)技术的新型调制系统,即排列组合高压缩多载波调制(PC/HC-MCM)系统。
2) OFDM
正交频分复用(OFDM)
1.
Single carrier with frequency domain equalization (SC-FDE) and orthogonal frequency division multiplexing (OFDM) are both block-wise transmission schemes based on cyclic prefix (CP).
单载波频域均衡(SC-FDE)和正交频分复用(OFDM)都是基于循环前缀(CP)的分块传输技术,具有相同的抗多径传输的能力、基本相同的系统复杂度和频谱效率,是两种主要的未来宽带无线通信物理层关键技术。
2.
The combination of MIMO and OFDM techniques is regarded as one of the best transmission methods in the future wireless broadband communication.
多天线发送多天线接收(MIMO)和正交频分复用(OFDM)两种技术的结合被认为是未来无线宽带通信最有效的传输技术之一,既可以很好的解决未来宽带无线通信系统中信道的多径衰落和带宽效率这两个最严峻的挑战,又能够提高系统容量和传输可靠性。
3.
To compensate for the performance degradation induced by phase noise,a low-complexity phase noise cancellation algorithm for OFDM systems is developed in this paper.
正交频分复用(OFDM)易受相位噪声的干扰。
3) OFDM
正交频分复用
1.
Orthogonal Frequency Division Multiplexing (OFDM ) Technology and Its Application in HF Communication;
短波通信中的正交频分复用技术分析及应用
2.
Ultra-wideband communication system based on OFDM technology;
基于正交频分复用技术的超宽带通信系统
3.
Performance analysis of OFDM system on different channels;
正交频分复用系统在不同信道下的性能分析
4) orthogonal frequency division multiplexing (OFDM)
正交频分复用(OFDM)
1.
A newmethod is proposed to reduce the peak-to-average power ratio(PAPR)of orthogonal frequency division multiplexing (OFDM)system.
提出了一种新的降低正交频分复用(OFDM)系统峰均功率比(PAPR)的方法。
2.
This paper proposes a scheme to reduce the effect of intercarrier interference in orthogonal frequency division multiplexing (OFDM) systems by adjustment of subcarrier signs based on the theory of combinatorial optimization.
基于组合优化理论,提出了一种通过调整子载波调制符号的正负来抑制正交频分复用(OFDM)系统载波间干扰(ICI)的方法。
5) orthogonal frequency division multiplexing(OFDM)
正交频分复用(OFDM)
1.
A scheme of optical millimeter(mm) wave based on orthogonal frequency division multiplexing(OFDM) generation have been proposed with theoretics and simulation in this paper.
该文提出了一个基于正交频分复用(OFDM)技术的毫米波产生方案。
6) OFDM(orthogonal frequency division multiplexing)
正交频分复用
1.
Symbol timing and carrier frequency offset will significantly degrade the performance of OFDM(Orthogonal Frequency Division Multiplexing)receiver.
符号、载波偏移严重影响着正交频分复用(OFDM)接收系统的性能。
2.
OFDM(Orthogonal Frequency Division Multiplexing) can effectively eliminate the ISI between different symbols and has high frequency efficiency.
正交频分复用技术可以有效的消除信号符号间干扰并具有较高的频带利用率。
3.
In order to minimize the interference between digital audio signals and analog audio signals in the same band in AM Hybrid In-Band On-Channel(IBOC) system,a self interference cancellation method based on OFDM(orthogonal frequency division multiplexing) is introduced in this paper.
针对混合模式的调幅带内同频数字音频广播(AM IBOC DAB)系统中的同频干扰问题,提出了一种自干扰抵消的方法,该方法利用正交频分复用(OFDM)技术中相邻子载波频率接近的特性,通过对相邻的两个子载波接收到的数据中的模拟干扰做干扰自抵消,从而减小了模拟信号对数字信号的同频干扰。
补充资料:排列组合易错点
1. 解排列组合问题的依据是:分类相加,分步相乘,有序排列,无序组合.
2.解排列组合问题的规律是:相邻问题捆绑法;不邻问题插空法;多排问题单排法;定位问题优先法;定序问题倍缩法;多元问题分类法;有序分配问题法;选取问题先排后排法;至多至少问题间接法.
3. 解答选择题的特殊方法是什么?(顺推法,估算法,特例法,特征分析法,直观选择法,逆推验证法等等)
4. 解答开放型问题时,需要思维广阔全面,知识纵横联系.
5. 解答信息型问题时,透彻理解问题中的新信息,这是准确解题的前提.
6. 解答多参型问题时,关键在于恰当地引出参变量, 想方设法摆脱参变量的困绕.这当中,参变量的分离、集中、消去、代换以及反客为主等策略,似乎是解答这类问题的通性通法.
7. 在分类讨论时,分类要做到“不重不漏、层次分明,最后要进行总结.
8. 在做应用题时, 运算后的单位要弄准,不要忘了“答”及变量的取值范围;在填写填空题中的应用题的答案时, 不要忘了单位.
9.在解答题中,如果要应用教材中没有的重要结论,那么在解题过程中要给出简单的证明。
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