Description: cost231信道模型，做通信仿真都知道还是很有用的-cost231 channel model, simulation of communication to do all know that it is useful for Platform: |
Size: 4096 |
Author: |
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Description: 移动通信奥村模型计算信号衰落的C语言程序源代码-Okumura model of mobile computing signal the decline of the C language source code Platform: |
Size: 2048 |
Author:ljx |
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Description: 该模型是基于实地测量的即以准平坦地形、大城市市区的中值场强或路径损耗作为参考，对其他传播环境和地形条件等因素分别以校正因子的形式进行修正，用来预测地面移动系统信号的强度。其频率适用范围是150MHz到1000MHz的UHF/VHF频带。目前使用的主要频段资源为800~900MHz。这一频段，在相对平坦区域，一般可应用Okumura-Hata传播模型。Hata提供了对这些数据的解析逼近，并捕捉到大部分的主要影响-The model is based on field measurements of the quasi-flat terrain, large cities in the urban field strength or path loss values as a reference for other dissemination of environmental and topographic conditions and other factors correction factor respectively in the form of amendments to be used to predict the ground mobile systems the signal strength. The frequency range is 150MHz to 1000MHz for the UHF/VHF band. The main bands currently used resources for the 800 ~ 900MHz. The band, in the relatively flat areas, generally can be applied to Okumura-Hata propagation model. Hata provides these data analytic approaches, and to capture most of the major impact Platform: |
Size: 23408640 |
Author:gudeyi |
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Description: Okumura/Hata模型是以准平滑地形的市区作基准，其余各区的影响均以校正因子的形式出现。-Okumura/Hata model is a quasi-smooth terrain of the urban benchmark, the impact of the remaining districts are in the form of correction factors. Platform: |
Size: 19456 |
Author:孟浩 |
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Description: 日本科学家奥村通过对城市进行大量无线电波传播损耗的测量，得出了一系列经验曲线用于无线蜂窝网络的规划设计。在这些经验曲线的基础上，推出了简化的Hata模型。-Olympic Village by Japanese scientists a great deal of radio waves in urban propagation loss measurement, the experience curve obtained for a series of planning and design of wireless cellular networks. In the curves on the basis of these experiences, the introduction of a simplified Hata model. Platform: |
Size: 1024 |
Author:yiping |
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Description: Computer application with implemented Okumura-Hata propagation prediction model and free space propagation loss model. Prediction code is used to predict outdoor propagation effect in any outdoor environment: urban, suburban, and rural. Application is giving a possibility to plan radio cells into the map uploaded from the file to provide maximum coverage with minimum number of transmitters in pointed localization. Application also provides additional functions like comparing different environments, calculating probability of the coverage, output of spectrum analyzer, and antenna pattern design.
MATLAB release MATLAB 7.5 (R2007b) Platform: |
Size: 1462272 |
Author:Rafal |
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Description: 完整奥村-Hata模型程序，实现了奥村-Hata模型的图像。-Okumura-Hata model for a complete program to achieve the Okumura-Hata model image. Platform: |
Size: 1024 |
Author:李桐 |
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Description: 实现奥村-哈塔模型的建立，求出在自由空间下的路径损耗-Achieve Okumura- Hata model is established, obtained under free-space path loss Platform: |
Size: 1024 |
Author:冯宇东 |
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Description: 信道仿真程序，通过simulink实现BPSK调制在二进制对称信道、AWGN、RAyleigh、Rician信道下的误比特率仿真，并提供了Okumura-Hata模型函数、COST231-WI视距模型函数、COST231-WI非视距模型函数、COST-231 Hata模型仿真-Channel simulation program, through the simulink to realize BPSK modulation in binary symmetric channel, AWGN and RAyleigh and Rician channel bit error rate of the simulation, and provides Okumura Hata model function, COST231 WI stadia model function, COST231- WI non line-of-sight Hata model simulation model function, COST- 231 Platform: |
Size: 39936 |
Author:llx |
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Description: COST-231 Hata模型、Okumura-Hata模型、COST231-WI视距模型、COST231-WI非视距模型 衰落仿真-COST-231 Hata model, Okumura-Hata model, COST231-WI model and COST231-WI model of non line of sight fading channel simulator
Platform: |
Size: 141312 |
Author:tangling |
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Description: Lets use Hata model for a medium city to find the received signal levels at various distances = 3, 6, 9,
12 and 15 Kilometers the base station operating at 870 MHz. The following data is given:
Height of the radiation centerline measured the base of the BTS = 50 m
Terrain elevation at the location of the BTS = 350 m
Average terrain height = 300 m
Height of the mobile antenna = 3 m
Power delivered to the BTS antenna = 19.5 W
Gain of the BTS antenna = 10 dBi
Gain of the mobile antenna = 0 dBi-Lets use Hata model for a medium city to find the received signal levels at various distances = 3, 6, 9,
12 and 15 Kilometers the base station operating at 870 MHz. The following data is given:
Height of the radiation centerline measured the base of the BTS = 50 m
Terrain elevation at the location of the BTS = 350 m
Average terrain height = 300 m
Height of the mobile antenna = 3 m
Power delivered to the BTS antenna = 19.5 W
Gain of the BTS antenna = 10 dBi
Gain of the mobile antenna = 0 dBi Platform: |
Size: 1024 |
Author:mjahidi |
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Description: The COST 231 model [1-2] is a semi-empirical path loss model, resulting from the combination of Walfisch-Bertoni [3] and Ikegami [4] models. It is recommended for macro-cells in urban and suburban scenarios, showing very good results for path loss calculations for base station antennas located above the average roof height. However, the prediction errors increase significantly as transmitter antenna height approaches the roof height, reaching a very poor performance for transmitters located below that level. The COST 231 model has a frequency range between 800 MHz to 2000 MHz. Compared to previous models such as Okumura-Hata, the calculation procedure is more detailed, and includes four additional parameters, namely: • height of buildings • width of the roads • building separation • road orientation with respect to the direct radio path. The basic propagation loss, Lb, is calculated as the sum of three components: the free-space loss, L0, the roof-to-street loss, Lrts, produced in the street where the receiver is located, as result of the diffraction on the next rooftop; and the multiscreen diffraction loss, Lmsd, produced by multiple diffractions on the building rooftops along the direct propagation path. The model also distinguishes LOS and NLOS situations. Platform: |
Size: 8415 |
Author:Gomathi |
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Description: The Hata Model is a radio propagation model for predicting the path loss of cellular transmissions in exterior environments, valid for microwave frequencies from 150 to 1500 MHz. It is an empirical formulation based on the data from the Okumura Model, and is thus also commonly referred to as the Okumura-Hata Model Platform: |
Size: 1024 |
Author:nayaab
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