1)  spread spectrum communication system
扩展频谱系统
2)  two-dimension spread spectrum system
二维扩展频谱系统
1.
Hence PARAFAC(PARArallel FACtor) receiver algorithm for two-dimension spread spectrum system is proposed in this paper.
对二维扩展频谱系统的接收信号经过IDFT(离散傅里叶反变换)模块后的信号进行分析,表明此信号具有三线性模型特征;为此,提出了二维扩展频谱系统下PARAFAC(平行因子)接收机算法,该算法先利用三线性交替最小二乘(TALS)算法估计出信源矩阵,然后对其进行判决。
3)  expansion
扩展
1.
Study on Relationship Between Adhesiveness of Peripheral Blood Leukocyte and Expansion of Acute Anterior Wall Myocardial Infarction;
外周血白细胞粘附与急性前壁心肌梗死扩展的关系
2.
The Characteristics, Problems & Solutions of the Urban Land Expansion of Bao Tou City in the Recent Ten Years;
包头市近10年城市用地扩展的特点、问题及其对策
3.
The new expansion method of PLC input end;
PLC扩展输入点的新方法
4)  propagation
扩展
1.
Impact fatigue crack propagation;
冲击疲劳裂纹扩展(英文)
2.
Study on nucleation and propagation mechanism of thermal fatigue crack of steel bonded carbide;
钢结硬质合金热疲劳裂纹萌生扩展机理探讨
3.
Crack Propagation Simulation of 840D Freight Wheel with Web Plate Bore;
840D货车车轮辐板孔疲劳裂纹扩展仿真
5)  expand
扩展
1.
Using by-pass jumper charged maintenance method on power distribution overhaul and its expand;
引流线旁路带电作业法在配电检修工作中的应用及其扩展
2.
The method of expanding exterior interrupt sources for 8031 SCM with 8259A;
用8259A扩展8031单片机外部中断源的方法
3.
The methods of expanding the programmable controller I/O points;
扩展可编程控制器I/O点数的若干方法
6)  extension
扩展
1.
OAM extension in EPON networks;
EPON网络中OAM子层的扩展
2.
Extension of Objects and Services of BACnet;
BACnet的对象及服务扩展
3.
New extension of cubic Bézier curve and its applications;
三次Bézier曲线的新扩展及其应用
参考词条
补充资料:倍频谱带
分子式:
CAS号:

性质:又称倍频谱带。红外光谱分析中的一种谱带;指某个吸收频率为基谐振动频率的2倍或3倍时的吸收带。它的产生是由于两个原子核间的库仑排斥力使振动频率发生了异常变化的结果。泛频带的吸收强度往往很低,因此这个吸收带有时测不出来。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。