1) BDRM
波束位移
1.
In this paper,during building broadband acoustic model based on beam-displacement ray-mode theory(BDRM),fast arithmetic for approximate normal-mode calculation of broadband acoustic signals in shallow water with a thermocline is proposed based on an expansion of eigenvalues,eigenfunctions and modulus decay with respect to frequency.
本文在波束位移射线简正波(BDRM)理论基础上实现宽带声场建模,在宽带建模过程中利用频域展开方法对宽带信号的本征值、本征函数和衰减系数进行插值计算,减少繁琐的方程解算,提高了计算速度,缩短了计算时间。
2) displacement of a Gaussian beam
高斯波束位移
3) steerable
移动波束
1.
Benefitting from GRASP8 Student Edition,which provides a free,open antenna simulation module,an analytic tool specially for steerable antenna is developed by VC++ and MATLAB and produces good results in accordance with actual patterns.
针对偏馈形式的移动波束天线,分析了波束指向和双轴转角的换算关系,二次开发了反射面天线仿真计算软件GRASP8SE,最后对天线在波束扫描状态下的电性能进行了仿真计算,并和实测结果做了对比。
4) offset beam
偏移波束
6) displacement constraint
位移约束
1.
Optimization of the truss with displacement constraint using member-area-increasing iteration
用杆件截面递增迭代法对位移约束桁架进行优化设计
2.
The results show that bolts can offer both stress constraint and displacement constraint to rock mass, and provide a basis for support design and stability.
验证了注浆加锚岩体在承载过程中具有应力强化特性;反映了注浆加锚岩体破裂和变形的发展过程;揭示了锚杆对岩体提供应力和位移约束机理。
3.
Using Kuhn-Tucker necessary conditions,a multi-displacement constrained problem is simplified to a single displacement constraint and called the most critical displacement constraint,eliminating the need to calculate a large set of lagrange multipliers for the effective constraints and deriving an optim.
用Kuhn-Tucker(库恩-塔克)必要条件将多个位移约束简化为单一位移约束(称为最临界位移约束),建立位移约束下的优化设计准则。
补充资料：波束制导
见遥控制导。
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