对具体地面电波传播的信号进行测试。
The signals was measured of electromagnetic wave propagation on the ground.
较复杂的电子技术是利用光或无线电波传播。
The highly sophisticated electronic methods rely on either light or radio wave propagation.
最后给出了一个该环境的电波传播预测应用例子。
Finally give an electric wave propagation prediction application example of this model.
本文利用文献计量学方法对电波传播的文献规律进行了研究。
Using the bibliometrics methods the document rules in the field of radio propagation have been investigated.
本文提出采用基于矩量法的快速算法来进行电波传播的研究。
In this paper, an approach based on the method of moments is introduced for the field prediction.
在空间时代，沿射线路径的总折射率是研究电波传播的重要参数。
The total refractivity content along the ray path is an important propagation parameter in space times.
这个不寻常的装置让我们一窥光线传播信息而非电波传播信息的未来。
This unusual set-up offers a glimpse of a future in which light, rather than radio waves, is used to send information.
本文提出一种能有效预测微小区环境中电波传播路径的射线跟踪算法。
This paper provides an effective ray tracing method for prediction of microcell radio propagation.
然后介绍了无线信道的传播机制基本概念以及井下巷道电波传播特性；
Then, the paper introduced the basic concepts of wireless channel transmission mechanism as well as the characteristics of radio wave propagation in underground tunnels;
提出了一种新的研究电气化铁道无线电干扰电波传播规律的测量方法。
The authors of this paper has put forward a new measurement method to study propagation characteristics of radio noise caused by electrified railways.
这就需要建立一种精确的电波传播预测模型来分析微小区的电波传播。
Therefore a new accurate prediction model must be established to analyze the radio propagation in microcellular.
将其运用到室内无线电波传播规律的研究之中，是一种行之有效的方法。
It is very effective method which is used in the studying the propagation's law.
在此基础上对高速铁路的电波传播特性进行了小尺度衰落特性的研究分析。
On the base of this channel, we analyze the characteristics of the radio wave small-scale fading.
对一个移动通信系统来说，电波传播电路计算是无线规划的最重要问题之一。
Calculating the radio wave propagation circuits is one of the most important tasks in planning radio project for a mobile communication system.
在传统的电波传播预测模型的基础上，提出了一种基于射线跟踪法的改进模型。
An improved ray-tracing model based on traditional microwave propagation prediction models is presented.
本文研究并给出了一种非规则城市环境电波传播的预测方法——加速多镜像法。
A kind of method - accelerative multi-images method is given to the electromagnetic wave propagation prediction to the irregular urban area of this article.
分析近距短波无盲区通信的电波传播方式及性能，对指导工程实践具有重要的意义。
In the engineering applications of short-range HF no-blind zone communication, analyzing the propagation modes and characteristics of electromagnetic wave plays guidance role to engineering practice.
给出了该算法进行定位的原理，并结合井下复杂环境中的电波传播模型来实现该算法。
We elaborate the theory of localization algorithms, and implement the algorithm combined with radio wave propagation model in underground complex environment.
在现代移动通信系统的无线网络设计和规划中，电波传播预测是其中的一个重要环节。
Prediction of radio propagation plays a very important role in design and programming wireless communication network in modern mobile communication.
微区电波传播特性分析模型多是理论模型，采用射线追踪法，对源辐射情况进行模拟。
Most propagation models , which can be adapted micro cellcluar are theory method based on ray tracing method.
不同算法在不同电波传播环境下的性能会有所差别，有些算法在一定的环境下甚至会失效。
Different beamforming algorithm has different performance under different circumstance. Some algorithms even fail to work under specific circumstance.
斜向探测是电离层探测的主要方式之一，它能够获得电波传播群时延和频率关系的电离图。
The oblique sounding is one of the powerful tools, by which an oblique ionogram is obtained with the group path or time delay against operating frequency.
利用改进的BP算法，结合电波传播理论，建立了随机雨介质的等效复折射指数的神经网络模型。
The neural network model of the equivalent complex refractive of random rain media is developed by means of the improved BP algorithm, based on the electromagnetic wave propagation theory.
对井下复杂环境中无线电波传播模型方程中的环境因子矩阵，结合了实际测量值对其进行了修正。
It was modified combined with their actual measured values that the environmental factors in radio wave propagation model equation matrix of underground complex environment.
本文以行星际闪烁为主，综述了通过电波传播的观测来研究太阳风的方法及近30年的观测结果。
The results of recent 30 years study of solar wind using the method of radio wave scattering are reviewed, with emphasis on the interplanetary scintillation(IPS).
随着高频电磁波技术的迅猛发展，复杂环境下的电波传播特性预测已经成为一个重要的研究课题。
Along with the rapid development of high frequency radio technology, predicting characteristics of radio propagation in complex environments has become an important research subject.
由于降雨对Ka波段卫星通信系统的电波传播的衰减较大，成为影响其传输质量的重要因素之一。
Rainfall has become one of the key factors which influence the transmission quality, because it has great attenuation to the electronic wave transmission of Ka band satellite communication system.
本文讨论了与电波传播电路计算有关的各种因素，例如噪声、干扰和衰落，以及对它们的处理方法。
The various factors, such as noise, interference and fading, relating to radio wave propagation circuits, as well as the methods dealing with the factors are described.
在规划和优化通信网络的过程中，需要消除信号盲区，因此研究电波传播损耗就成为一个重要的课题。
In the process of marking out network, it need to avoid the existence of no-signal areas.
甚低频(VLF)电波传播过程中因环境因素影响会使信号产生衰减与扰动，导致潜艇收信可靠性下降。
The signal will have attenuation and disturbance due to environmental factors in the process of VLF radio wave propagation, which will impact the reliability of submarine communication.
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