余割

含余割核奇异积分修改的反演问题

Modification of the Inversion Problem for Singular Integrals with Cosecant Kernel

余割波束天线检测方法的研究

The research on inspection method of cosecant beam antenna

对余割波束天线的检测方法进行了较深入的探讨。

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

一类具有变系数和余割核奇异积分的卷积型方程的求解

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

关于余割平方透镜天线的探讨

Discussion about Cosecant-Squared Lens Antenna

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。

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 .

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。

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 .

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。

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 .

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。

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 .