1) angle spread
角度扩展
1.
The scheme involves the channel delay spread,doppler spread,angle of arrival and angle spread,etc,and it can simulate the correlation properties of space-time MIMO channel in time domain,frequency domain and space domain,which is useful for the analysis and simulation of MIMO systems.
这一仿真模型同时考虑了时延扩散、多普勒效应、波达方向及角度扩展等信道参数,能够完整地描述无线衰落信道的空间、时间以及频率特性,具有运算复杂度低、产生简便等优点,从而为MIMO无线链路性能仿真、系统容量分析以及实现算法性能评估提供了有力工具。
2.
The modeling method produces the stochastic fading involving delay spread,doppler spread,angle spread,etc.
该信道建模采用随机产生方式,同时考虑信道的时延扩展、多普勒扩展、角度扩展等多种信道参数,通过调整某些参数可生成适用于各种MIMO技术研究的信道模型,如智能天线、空间分集、复用等,并且具有计算复杂度低、产生简便的优点。
2) angular spread
角度扩展
1.
According to the approximation model for CD source, we know that, in thecircumstance of small angular spread, the angular spread mainly affects theamplitude of the general steering vector (GSV).
根据相干分布源的近似模型可知，在小角度扩展情况下，角度扩展主要影响广义方向向量各元素的幅度。
2.
Based on specially array geometry designation,the angular spread could be estimated by substituting the estimated DOA into the amplitude information vector.
介绍了一种新的非相干分布源的2D-DOA与角度扩展估计方法。
3.
To solve the high computing load of the parameter estimation algorithm for incoherently distributed source,a new DOA and angular spread estimation algorithm is proposed.
针对现有非相干分布源参数估计算法计算量大等问题,提出了一种新的DOA和角度扩展估计算法。
3) azimuth spread
角度扩展
1.
Both spatial correlation and fading in time domain are integrated into this model, and many channel parameters such as time dispersion, Doppler effect, direction of arrival, azimuth spread, and power azimuth spectrum are fully considered in this model.
本文研究了一种应用于移动通信系统中收发端皆为多天线系统的MIMO信道建模的方法,将功率延迟函数,空域相关以及时域衰落融入到信道模型中,充分考虑了时延扩散、多普勒效应、波达方向、角度扩展、到达角功率谱分布等多种信道参数。
2.
Many critical channel parameters such as time dispersion,direction of arrival,azimuth spread,and power azimuth spectrum and Doppler effect are fully considered in this paper.
充分考虑了时延扩展,到达角,角度扩展,角度功率谱,多普勒效应等空域时域关键参数,并给出了仿真结果,对于研究矢量信道特性有重要意义。
4) large angular spreading
大角度扩展
5) initial crack angle
初始扩展角度
1.
The initial crack angle of inclined crack is discussed using strain energy density criteria and the effects of inclined crack angle and the aspect ratio of plate on initial fracture direction are analyzed by finite element analysis system of ANSYS for ideally elastic material.
在弹性破坏模式下,利用应变能密度因子准则对不同的裂纹倾斜角和不同的矩形板长宽比对斜裂纹的初始扩展角度的影响进行了数值计算和讨论。
6) spatial angular spread
空间角度扩展
补充资料：Anglelapping角度研磨
angle lapping 的目的是为了测量junction的深度，所作的芯片前处理，这种采用光线干涉测量的方法就称之angle lapping。公式为xj=λ/2 nf即junction深度等于入射光波长的一半与干涉条纹数之乘积。但渐渐的随着vlsi组件的缩小，准确度及精密度都无法因应。如srp(spreading resistance prqbing)也是应用angle lapping的方法作前处理，采用的方法是以表面植入浓度与阻值的对应关系求出junction的深度，精确度远超过入射光干涉法。
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