查询词典 RCS

Firstly, the framework about CSNS and its RCS Magnet System are introduced.

本文的主要内容有：首先阐述了课题的来源和研究意义。

Methods The method of shooting and bouncing rays was used to calculate the RCS and stokes' theorem was used to improve the arithmetic.

方法利用射线跟踪法对电大尺寸的三面角反射器的后向散射场进行分析，并利用斯托克斯定理将射线跟踪法中的面积分简化为代数多项式。

To obtain the RCS of dipole-array antennas, the system of electric field integral equations is turned into a linear algebra system whose coefficient matrix is a symmetric block Toeplitz complex matrix by using Calerkin method with pulse basis functions.

为计算线天线阵列的雷达散射截面，用脉冲函数为基函数的Galerkin法将线天线阵列的电场积分方程组转化为一个线性方程组，其系数矩阵是一个对称的二重复Toeplitz矩阵。

Aim To calculate the RCS of trihedral corner reflectors and improve the typical arithmetic of SBR.

目的研究三面角反射器后向散射场问题，并对射线跟踪法的典型算法进行改进，以提高运算速度。

This paper focuses on the effects of machining tolerance on monostatic RCS of triangular trihedral corner reflector s by using Physical Optics method.

基于物理光学法研究了三角形三面角反射器加工公差对其单站雷达散射截面的影响。

The frequency range and distortion model affected by Faraday rotation were analyzed. A kind of calibration algorithm was introduced, in which trihedral corner reflectors were used to calibrate POLSAR image subject to channel imbalance, Faraday rotation and RCS distortion. [2]Three kinds of target decomposition theorems used to extract polarimetric features of SAR image were studied in detail. A kind of POLSAR MLC image data decomposition method based on classical coherent decomposition theorem of POLSAR SLC image was introduced, which was used to extract polarimetric features of POLSAR MLC image.

当工作频率小于1GHz时，法拉第旋转是影响低频星载极化SAR图像定标的一个重要因素，论文分析了受法拉第旋转影响的波段范围和误差模型，提出了一种校正通道不平衡度、法拉第旋转和绝对幅度增益的极化定标算法，仅使用一种点目标——三角反射器作为定标体，应用于受法拉第旋转影响的极化SAR图像定标； [2]深入研究了三类用于SAR图像极化特征提取的目标分解理论。

An accident of protection maloperation of out-zone faults is discussed,which is caused by the misconnection of the secondary circuit.

通过对一次线路因保护二次误接线而引起的线路保护区外故障误动事件的经过及线路两侧保护动作情况所进行的详细分析，并结合RCS-902B保护的特点及接线方式探讨了保护动作的原因。

In order to save time, a simply mutual impedance formulation is used when distance between two chaffs is greater than 2λ.

计算结果表明箔条云团RCS的概率密度分布为指数分布。

This method uses received radar signal,modulates various RCS and position information,produces multi deceptive moving targets.

分析了雷达位置确定误差对欺骗式动目标干扰效果的影响，给出了一种干扰机的布阵方法。

The key of the simulation is to select a suited set of models and parameters which represent the motion and the echo of moving targets, Because the perform of microwave radars operating over the moving targets is very complicated.In this paper, we discuss how to simulate the motion of targets with a method of parameters simulation. And then we get a track clearly through controlling the flight parameters and the time increasing. The way reduces the error.This paper also particularizes the prime parameter of the echo--Radar Cross Section which is influenced by many factors.

对于目标的实时运动特性，本文采用了航迹的参数模拟法，通过控制目标的飞行性能参数与时间增量的大小来模拟目标的真实运动，避免了多种因素所引起的飞行误差，效果良好；此外，本文详细分析了表征运动目标回波特性的雷达截面积与雷达波长、目标姿态、极化方式及视角的关系，在此基础上，考虑了RCS的两种起伏特性以及天线对其的调制作用，得出了快、慢起伏目标回波的仿真数据，并对二者进行了比较。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。