雷达

The aim is to find a method of target identification that will be used in reconnaissance radar.

本文旨在探讨应用于侦察雷达的一种目标识别方法。

Nowadays, the Data-Acquiring Technology is used in many fields such as Analytical Instrument, Geology Reconnoiter, Medical Treatment Instrument, Radar, and Communication etc.

近年来，对于数据采集系统的要求与日俱增，数据采集系统有着非常良好的应用前景。如今的数据采集技术已渗透到分析仪器、地质勘探、医疗器械、雷达、通讯、测控等技术领域。

One lead missile per every 24 in the salvo flies at high altitude to reconnoiter the target, using its radar in active and passive modes.

一次齐射中的每24枚导弹有1枚领弹在高空飞行使用雷达的主被动模式侦察目标。

And the paper achieved conversion from the completed polar coordinates to rectangular coordinate, and solved two key problems, dead address and blind zone phenomenon.

本文完成了雷达数据从极坐标到直角坐标的转换，解决了坐标转换易出现的死地址和盲区现象。

To deal with the measurement error induced by the motion compensation error, the phase of the target\'s barycentre is estimated to compensate the phase differences. The measured scatterers\' height and width are wrong because they are not obtained in rectangular coordinates.

建立了在目标与天线电轴间存在较大斜角情况下的干涉式逆合成孔径雷达三维成像模型，并给出了运动补偿的详细步骤，针对因目标运动补偿误差导致的干涉测量误差，提出了利用估计出的目标重心相位对相位差进行补偿的方法。

In order to obtain the reliable and accurate headway distance data, a state space model for distance data filter is established and then a new data fusion and estimation algorithm based on Kalman filter principle is developed. Its recursion formula is obtained. Taking the distance measurements of machine vision and laser radar as inputs, this fusion and estimation algorithm can output more reliable and accurate fusion data in real time.

建立了距离滤波的状态空间数学模型，提出了一种新的基于Kalman滤波原理的距离数据融合估计方法，推导出融合估计的递推公式，对来自机器视觉和激光雷达的距离数据进行融合估计，以减少距离数据的噪声，提高其可靠性与准确性。

In the field of target tracking, tracking reentry vehicles based on radar information is a highly complex problem in nonlinear filtering.

在目标跟踪领域中，根据雷达测量的信息对再入来袭飞行器进行跟踪是一个很复杂的非线性滤波问题。

A spot of higher than normal intensity in the sweep of an indicator, as on a radar screen, used as a reference mark for determining distance.

作参照的指示点在指示器的扫描中如在雷达屏幕上强度离于一般的点，用于测定距离的参照标记

And the dependence of rain volume reflectivity on frequency and polarization is also analyzed.

同时进一步分析了降雨雷达体反射率的频率、极化特性等。

Combining with the research situation in domestic and abroad, the applications of chaotic laser in the areas of communication and measurement are introduced, such as chaotic secure communication, chaotic laser ladar, and chaotic optical time domain reflectometer.

结合国内外研究现状，简要介绍了混沌激光在通信及测量领域的应用，包括混沌保密通信、混沌激光雷达和混沌光时域反射仪等技术，并指出了混沌光通信与混沌激光测距的发展趋势。

They go to town. Would you just ask them?

他们在城里你能问他们吗？

Ossein pretreated for a2 weeks period exhibited the maximum% yield incase of bone gelatin, while the yield from intact skin was higher than that realized incase of de-scaled skin.

预处理时间达2星期的骨胶原表现出最高的骨明胶百分产量，然而从未处理鱼皮中得到的产率比去鳞的鱼皮得到的要高。