cosecant

The research on inspection method of cosecant beam antenna

余割波束天线检测方法的研究

The inspection method of cosecant beam antenna is discussed in depth in this paper .

对余割波束天线的检测方法进行了较深入的探讨。

Modification of the Inversion Problem for Singular Integrals with Cosecant Kernel

含余割核奇异积分修改的反演问题

A kind of singular integral equations of convolution type with variable coefficient and cosecant kernel

一类具有变系数和余割核奇异积分的卷积型方程的求解

The results of flat-top wave beam and cosecant square wave beam , which are gained using this method , are fairly good , testifying this method is effective in beam shaping of conformal arrays .

运用此方法得到共形圆柱阵列的平顶波束和余割平方波束方向图，效果较好，证明此方法对于共形阵列是有效的。

As the inversion problem for singular integrals with cosecant kernel usually has no solution in case of index k < 0 , we proposed and solved two different new forms of modified inversion problem in this paper .

针对含余割核奇异积分反演问题在指标k<0时一般无解的情况，本文提出并求解了两种修改的反演问题。

So the value of array invariant is the key point of passive source ranging , which can be gotten by the derivative of the arriving time against the corresponding cosecant function of elevation angle . Second , the concept of generalized array invariant is proposed .

阵不变量的提取是被动测距的关键，它可通过提取信号到达时间对应的简正波俯仰角余割值进行计算。二、提出了广义阵不变量的概念。

The concept of extra cosecant square antenna is described in this paper . The analysis and computational formulas of doubly curved reflector antenna with shaped beam are conducted in all details . The computing software diagram , designing method , the computational and practical results are also given .

介绍了超余割平方天线的概念，详细推导了双弯曲反射面赋形波束天线的分析、计算公式、计算软件框图、设计方法以及针对某一天线方向图的计算和实测结果。