星座图,constellation
1)constellation[英][,k?nst?"le??n][美]["kɑnst?"le??n]星座图
1.Qam signals recognition based on fractal research ofconstellation;基于对星座图分形的Qam信号识别
2.In this paper,we study the problem of modulation classification in the presence of phase error and improve modulation classification algorithm which usesconstellation shape as classification signature.讨论了存在相位误差情况下的调制识别问题,改进了以星座图形状为特征的识别算法。
3.A novel modulation recognition method is proposed,adoptingtheconstellation shape as classification characteristics.该方法将星座图形状作为调制识别的特征,运用聚类算法EAFCM(efficient adaptive fuzzy C-means)重建接受信号的星座图。
英文短句/例句
1.The keywords： macroscopic distribution, law, the constellation drawing of price.关键词：宏观分配、律，价格星座图。
2.MQAM Recognition Based on Research of Constellation Clustering一种基于星座图聚类的MQAM识别方法
3.Hybrid ARQ Technique Employing a Signal Constellation Rearrangement Based on 256-QAM基于256-QAM星座图重排HARQ技术
4.A diagram of the signs of the zodiac based on such an aspect.算命天宫图根据如上诸星位置情况制成的星座图
5.Research on Modulation Recognition of Phase Modulation Signal Based on Constellation Diagram;基于星座图的相位调制信号识别方法研究
6.A Modulation Classification Algorithm Based on Differential Constellation Shape一种基于差分星座图的调制体制识别算法
7.Signal Constellation of Differential Unitary Space-time Coding by Multi-Transmitting Antenna多发射天线的差分酉空时调制信号星座图
8.Modified Modulation Recognition Algorithm Based on Constellation Clustering Analysis基于星座图聚类分析调制识别的改进算法
plex constellation graph of multivariate data and its optimization method多元数据的复系数星座图及其优化方法
10.A cluster of stars smaller than a constellation.星群，星座比星座小的一簇星星
11.A constellation near Canis Major and Canis Minor.麒麟星座大犬星座和小犬星座附近的一个星座
12.A constellation in the Southern Hemisphere near Tucana and Sculptor.凤凰座在南半球，靠近图科纳和斯柯普特的一个星座
13.The choice of mapping in DAMB system development;数字调幅广播系统开发中星座映射图的选择
14.A constellation in the Northern Hemisphere near Cygnus and Hercules and containing Vega.天琴星座北半球一星座，在天鹅座和武仙座附近，星座内包括织女星
15.Aquarius is the friendliest of the star signs.水瓶座是所有星座中最友善的星座。
16.The brightest or main star in a constellation.主星，阿尔法星星座中最亮的星或主星。
17.In this photo, Big Dipper is on the left while Leo is in the middle of the image as star trail.图中的左方是北斗七星，中央是狮子座，由于相片曝光时间较长，星都拉长了成为星迹。
18.A constellation in the Southern Hemisphere near Musca and Pavo.天燕（星）座南半球邻近苍蝇座和孔雀座的星座
相关短句/例句
constellation diagram星座图
1.Digital modulation recognition based onconstellation diagram;基于星座图的数字调制方式识别
2.Twenty cultivars of garden pea form home and abround were analysed and classified by the principle and method ofconstellation diagram clustering analysis,They were divide into five resource types.根据星座图聚类分析的原理和方法,将国内外的20个豌豆种质资源进行分析和分类为5种资源类型,为豌豆种质资源的育种和生产利用提供定向选择的依据。
3.So long as the sample data are inputted,the computer may carry out their correlation analysis between variables,the standardization of data,and draw theirconstellation diagram and contiguous vector diagram,which are clear and convenient for the user.星座图与连接向量图是多变量统计的直观方法,可用于多变量样本或多变量指标的聚类分析。
3)Constellation map星座图
1.In order to ensure the digital TV signal transmission,this paper discusses how to use the constellation map to monitor the digital signal quality.为了保证有线数字广播电视信号的安全传输,根据有线数字电视测试的需要,介绍使用星座图监测数字信号质量的方法,同时对系统的QAM调制、星座图的原理和实现等方面做了相关阐述。
4)Constellation graph星座图
plex constellation graph of multivariate data and its optimization method多元数据的复系数星座图及其优化方法
2.0 version,analyzes three kinds of digital modulation,two kinds of packet format of the data rate and the constellation graph of the signal,calculates the Freq-Range utilization of Gaussian filter and root-raised cosine filter,explains that different Bluetooth versions possess distinct radio frequency characteristics.0版的射频特性,分析了蓝牙射频信号的三种数字调变模式、两种数据速率封包格式和信号的星座图,计算高斯滤波器和根升余弦滤波器的频带利用率,说明不同蓝牙版本具有不同的射频特性。
5)Signal Constellation Rearrangement星座图重
6)constellation rearrangement(CoRe)星座图重排
1.To investigate the low density parity check(LDPC) coded Chase combining hybrid ARQ(HARQ)system with 64QAM modulation,a searching algorithm is proposed for searching constellation rearrangement(CoRe) schemes with arbitrary retransmission number.提出一种适用于任意重传次数的星座图重排(CoRe)搜索算法,根据该算法搜索得到采用星座图重排的HARQ优化方案。
2.This scheme takes advantages of both the unequal error protection technique and the constellation rearrangement(CoRe) technique.该方案结合不等差错保护和星座图重排技术(CoRe)的优点,能够有效地平均多次重传后不同编码比特之间的可靠性,降低误块率(BLER),提高LDPC译码性能,可应用于改善移动通信系统的链路适配性能。
延伸阅读
星座图分子式：CAS号：性质：亦称星座图，是多元数据图表示法的一种。所谓星图，就是将元素点在半圆形极坐标上，每个元素对应一个星星和一条由折线表示的路径，同类的元素组成一个星区，不同类元素组成不同的星区，很像天文学上表示星座的图像。在星图上可一目了然地看到元素间相似、聚合的关系。星图法用于聚类分析中具有特征损失少、分类细致、结果直观和使用方便等优点。例如利用星图化学模式识别技术可成功地进行中药的质量评价，因为星图上各个星的位置和所经过的路径不同，反映了各星所代表的样品所含特征成分的差异。星图化学模式识别的分类结果可与植物形态学鉴定的结果相一致，且能弥补后者的不足。
