查询词典 echo-location

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。

What they produced is not a feasible solution but an echo or rewording of the Central Government decree, according to Luo Wei from Shenzhen Municipal Legal Affairs Bureau, who is responsible for reviewing this "echo".

他们生产的不是一个可行的解决方案，但有回音或中央政府的法令的字句，据罗危由深圳市法律事务局，谁负责审查这一&回声负责。&

What they produced is not a feasible solution but an echo or rewording of the Central Government decree, according to Luo Wei from Shenzhen Municipal Legal Affairs Bureau, who is responsible for reviewing this "echo".

什么他们生产不是能实行的解决但是回声或中央的政府法令的重述，依照来自深圳的 Luo Wei 市政的合法事件局，负责检讨这一声&回声&。

Based on the study of adaptive echo cancellation techniques, an echo cancellation scheme without the need for double talk detection is presented.

首次提出了无双端对讲检测回声抵消系统的概念和框架，突破了传统自适应回声抵消技术必须进行双端对讲检测的限制。

Negative CG flashes usually occurred in intense echo regions with reflectivity greater than 50 dBz, while the positive CG flashes often occurred in weak and stable echo regions(10-30 dBz) or cloud anvils, although they can be observed in strong convective regions sometimes.

地闪主要发生在大于40 dBz 的区域内，负地闪通常簇集在强回波区(大于50 dBz)或邻近区域，有时密集的正地闪也出现在强回波区或临近区域，但稀疏的正地闪通常发生在强回波外围10-30 dBz的范围内，属于稳定性降水区。

Methods\ By means of analyzing the echo signal from the ultrasonic detector, the features of the echo signal as a criteria related to the adhesive state had been extracted with maximum likelihood ratio method modeling to test the rocket motors sample of which inner surface the liner is cladded on .

方法通过对超声检测探头拾取的回波信号进行分析，提取出作为脱粘识别判断依据的信号特征量，利用似然比方法建立模型，对贴有绝热包覆层的发动机试件进行检测。

To investigate the role of cytokine in the pathogenesis of enterovirus central nervous system infections, 14 children with encephalitis (6 infected by enterovirus 71) and 21 children with meningitis (14 infected by echovirus 30 and 7 infected by echovirus 6) were recruited.

为了研究肠病毒中枢神经系统感染，其细胞激素的病理作用，我们收集了14位脑炎病童（其中6位感染到肠病毒71型）和21位脑膜炎病童(其中14位感染到echo病毒30型，另外7位感染到echo病毒6型)。

Lace and curtain overall echo: outside side lace colour among curtain with curtain can choose the color echo each other colors and textures, also can use the same color tassel do use lace.

花边与窗帘整体呼应：对开窗帘中间侧面的花边色彩可选择与窗帘颜色相互呼应的色彩和质地，也可使用同色流苏做花边使用。

The emphasis in this composition is windshear signal processing technology. Some processing methods are introduced in detail, they are suppressing clutter,extracting windshear parameters,computing hazard factor and etc..The signal processing simulation is accomplished on computer, it includes simulating microburst echo signal,simulating ground clutter echo signal,filtering clutter,estimating wind speed and calculating hazard factor.

本文重点研讨了风切变信号处理技术，对杂波抑制技术、风切变特征参数提取技术及危险因子计算方法等内容进行了深入的研究，并进行了计算机模拟，包括微下击暴流回波信号模拟、地杂波回波信号模拟、杂波抑制、风速提取和危险因子计算。

That "build-up" is what creates distance between the tape and tape heads causing degradation of the echo-repeats and also causing the pinch-roller to slip against the Capstan, which leads to wildly out-of-tune echo-repeats.

这种情况的出现会使磁头与磁带之间产生一种距离，进而造成回响音色的损失，甚至滚轮越来越偏离主导轴方向，使回响音色完全跑调。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。