1) wide nulling
零陷加宽
1.
Research on beamforming of wide nulling algorithm;
阵列波束的零陷加宽算法研究
2) Null-broadening
零陷扩宽
3) nulling widen
零陷展宽
4) broad null
宽零陷
1.
In this paper,pattern synthesis with broad nulls is converted into a target problem which is a nonlinear optimization problem,and a niche based genetic algorithm is used to optimize the weights of the array.
本文将宽零陷方向图综合看作目标非线性优化问题,采用一种基于小生境的多种群进化遗传算法对阵列加权值进行优化。
5) null steering
零陷
1.
Method of null steering by phase control;
相位控制形成阵列零陷的技术
2.
A null steering technique by phase and element position perturbations;
利用阵元相位和位置扰动形成零陷的技术
3.
Based on this new method,a selective algorithm is introduced for the purpose of reducing the number of controlled elements for null steering,and increasing.
首先提出了一种在阵元关于阵列中心对称的线阵中利用幅值扰动形成零陷的新方法,该方法克服了传统幅值扰动方法零陷深度不足、旁瓣水平高的缺陷,且能够在多个强干扰源方向或在较宽的范围形成深度零陷而不影响主瓣。
6) null
[英][nʌl] [美][nʌl]
零陷
1.
It is often desireable to widen the interference null width in an adapted pattern to impart robustness into the realized adapted pattern in some real environments.
在自适应天线阵抗干扰的一些应用环境中 ,往往需要自适应天线方向图在对准干扰的位置形成宽的零陷从而增强算法的稳定性。
2.
The character of the eigenvalues of the constraint matrix was aimed,and the character is that the matrix has the same number of larger eigenvalues as number of the nulls that the matrix denoted.
针对约束矩阵具有与其所对应的零陷个数相同数量的大特征值的性质,应用盖氏圆盘定理比较精确地估计一个零陷情况下约束矩阵特征值的界。
3.
The most basic problem of designing antenna array is deciding radiation pattern, if we can specify the positions of the nulls, and make the nulls aim at the interferes on given angle on pattern, it will restrain interferes effectively, and minimize Signal-to-Noise capability drop that is caused by int.
对于天线阵列设计的一个最基本问题是决定阵列的辐射方向图,若能达到在辐射方向图上指定零陷,使零陷对准特定方向上的干扰,便能够有效地抑制干扰,使由干扰所引起的信噪比性能下降减小到最低程度。
补充资料：零息票债券；零券息债券
零息票债券；零券息债券一种以低于票面价值的价格发行的债务工具。债券不支付任何票息；它在到期日是以面值赎回的。
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