查询词典 radars

In radars of the 1950s these were single target tracking devices using a nutating horn as part of its antenna.

在50年代的雷达中，天线里有个摆动的喇叭形状的部分来实现单目标跟踪装置的功能。

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。

The OOW shall grasp all about the radars to be used, such as, the width of pulse to be used, the maximum and minimum detectable distances, the resolutions for distance and azimuth, and other characteristics of the instruments in order to make a correct judgment on the image information.

值班驾驶员必须完全掌握要使用的雷达，如：要使用的脉冲宽度，最大和最小探测距离，方位和距离的分辨率，和设备的其它特点，以便对回波作出正确判断。

But most experts believe the Yaogan series includes two variants with high-resolution electro-optical cameras and cloud-piercing radars designed to see targets through inclement weather or darkness.

但是多数专家相信&遥感&系列卫星包括两种高分辨率光电照相机和穿云雷达，用来透过恶劣天气或黑暗来侦察目标。

As radars are the main sources of combat intelligence, it is necessary to realize netting and visualization of radar information .

本文从这个角度出发，提出雷达信息网络化和可视化的总体设计思路。

The signal processing of narrow-beam radars are in the given direction to which the beam is pointing, so the received interferences and clutters only come from that direction and thus the signal-to-noise ratio is relatively high, and target detection is only need to be performed on the range-Doppler spectra, which has a relatively low demand.

而宽波束雷达则会接收到所有方位上的干扰和杂波，信噪比较低，除了需要在距离-多普勒谱上检测出目标外，还需要分别形成目标的阵列快拍以获取其空间谱估计。

The aerostats must be able to carry a payload of 2,400 kilograms to 15,000 feet for 28 days at a stretch, including radars that can spot aircraft and missiles up to 30,000 feet and out to 300 kilometers.

该高空气球必须能够携带2400公斤有效载荷到15000英尺，且坚持28天，包括能够侦察到飞机和导弹的雷达，最高能到30000英尺高，远到300公里外。

So, PAC will be able to make JF-17 airframes, and get radars and electronics etc.

这样的话，PAC将有能力生产FC-1机身，然后从CAC得到安装了锁死功能模块雷达和电子设备。

So, PAC will be able to make JF-17 airframes, and get radars and electronics etc.

这样的话，PAC将有能力生产FC-1机身，然后从CAC得到安装了锁死功能模块雷达和电子设备。对么？

Future upgrades will be very modern on par with Apaches- however fire control and radars need to be the best in the world.

未来对它的改进将使它与阿帕奇一样先进，然而火控与雷达则需要世界上最先进的。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。