您要查找的是不是：
- Topographic Information Based Path Loss Prediction for Stratosphere Communication System 基于地形信息的平流层通信系统传播衰减预测
- path loss prediction 路径损耗预测
- The Windows-based software, AREPS3.0, is applied to compute path loss versus range in the troposphere, using atmospheric information from shipboard weather prediction station. 使用AREPS3.;0软件计算不同距离上的路径损耗，大气信息取自舰载气象站；
- And it can get the path loss of any point on single floors of buildings. 该模型既有二维跟踪模型的快速，又有三维跟踪模型的高精度。
- The Grey-Markov chains model is applied to the economic loss prediction system of environment pollution accidents. 将灰色马尔柯夫链模型应用于环境污染事故的经济损失预测系统。
- It briefly presents the theory for the diffraction over terrain obstacles and describes two different path loss models, the Hata model and a FFT-based model. 本文提出一个新的数学模型，描述压力波在充满黏性不可压缩流体的等向性弹性管中的传输行为。
- The method is adaptive to different path loss models and does not require any hardware modification on network or mobile devices.Moreover, the impact of shadowing is reduced. 该方案不需要对网络设备和移动终端作任何硬件改造，就能普遍适用于各种无线环境和路径损耗模型，同时能有效降低阴影效应的影响。
- The main contents of soil and water conservation include compilation purpose, compilation basis, project construction brief, soil loss prediction in project construction, prevention scheme for soil loss, investment estimate and effect analysis. 水保方案的主要内容，包括编制的目的与意义、制依据、程施工简况、程建设过程中水土流失预测、土流失防治方案、资概算及效益分析。
- Prediction of Radio Propagation Path Loss in Mountain Areas 山区环境电波传播路径损耗的预测
- Then critical technologies of simulation system are discussed, including frame processing structure, FH sequence generator, simulation models of path loss and multipath channel, simulation of signal propagation delay and jamming signal etc. 其次，讨论了仿真系统实现的关键技术，包括帧处理结构、跳频序列发生器、路径损耗与多径信道仿真模型、信号传播延时及干扰信号的仿真等。
- However, ranging measurements are often subject to errors, induced by multipath signals and variations in path loss, unreliable hardware or antenna connectors, or imperfection in measurement models. 可是，距离测量往往容易出现错误，多径信号和路径损耗变化，不可靠的硬件或者天线连接器，或者不理想的测量模型都可能导致错误出现。
- They cleaved a path through the wilderness. 他们在荒原中开辟出一条路。
- In this paper,the performance of wireless DNC system is analyzed by testing the performance parameters of wireless signal and proposing the path loss formula of radio wave propagation in workshop. 通过测试无线信号性能参数并提出车间环境下无线电波路径损耗经验公式,分析了无线DNC系统的性能。
- She squelched along the muddy path. 她沿着泥泞小径格吱格吱地走。
- He was destined to plod the path of toil. 他注定要在艰辛的道路上跋涉。
- A Hybrid Model for Propagation Loss Prediction in Tunnels 预测隧道中传播损耗的混合模型
- The path leads to a hill bare of vegetation. 这条小道通向一座没有草木的小山。
- Wear Loss Prediction Using Least Square Support Vector Machine 基于最小二乘支持向量机的磨损预测
- The path of civilization is paved with tin cans. 文明的大道，是铺满了空罐头。
- Every day he trod the same path to school. 他每天都走同一条路上学。
