ITU-R P.1546方法在中国陆地典型区域适用性研究
|
摘要
在解读、剖析ITU-R P.1546方法的基础上,通过对比北京周边平原地区和贵州喀斯特山区的测试结果和预测结果,分析了该方法在两类中国陆地典型区域的适用性.分析结果表明:1)在3 s和30 s高程精度下,平原地区均表现出较好的适应性,但提升高程精度可一定程度上减小预测误差;2)山区在3 s高程精度下具有良好适应性,粗粒度的高程数据将对发射天线等效高度及场强插值、地形余隙角修正值产生较大影响,其中3 s与30 s高程精度下的地形余隙角修正值的均值相差30.85 dB.研究结果可为ITU-R建议所提供传播预测方法的区域性应用及本地化研究等方面提供参考依据.
Based on the analysis of the ITU-R P.1546 recommendation, this paper compares the prediction results with the test results in the surrounding plain area of Beijing and Karst mountain area in Guizhou, and we analyzed the applicability of this method in two typical terrestrial areas of China. The results show that:(1) The terrain shows good adaptability at both 3 s and 30 s accuracy, and increasing the elevation accuracy can reduce the prediction error.(2) The prediction result of remote mountainous regions is only good at 3 s terrain accuracy. Coarse-grained elevation data can have a significant impact on the equivalent height of transmit antenna, as well as the field strength interpolation and the terrain clearance angle correction, and the average value of terrain clearance angle correction under 3 s and 30 s Terrain difference is 30.85 dB. The research results are of significance to for the regional application and localization research of the propagation prediction methods provided by ITU-R Recommendations.
Based on the analysis of the ITU-R P.1546 recommendation, this paper compares the prediction results with the test results in the surrounding plain area of Beijing and Karst mountain area in Guizhou, and we analyzed the applicability of this method in two typical terrestrial areas of China. The results show that:(1) The terrain shows good adaptability at both 3 s and 30 s accuracy, and increasing the elevation accuracy can reduce the prediction error.(2) The prediction result of remote mountainous regions is only good at 3 s terrain accuracy. Coarse-grained elevation data can have a significant impact on the equivalent height of transmit antenna, as well as the field strength interpolation and the terrain clearance angle correction, and the average value of terrain clearance angle correction under 3 s and 30 s Terrain difference is 30.85 dB. The research results are of significance to for the regional application and localization research of the propagation prediction methods provided by ITU-R Recommendations.
引文
[1] WEI W,XIA N,ZHANG X F,et al.Research on VHF/UHF signal localization techniques based on ITU-R P.1546 radio wave propagation model [C]//2014 IEEE International Conference on Computer and Information Technology,2014:827-831.
[2] KASAMPALIS S,LAZARIDIS P I,ZAHARIS Z D,et al.Comparison of Longley-Rice,ITU-R P.1546 and Hata-Davidson propagation models for DVB-T coverage prediction [C]//IEEE International Symposium on Broadband Multimedia Systems and Broadcasting,2014:1-4.
[3] LEE J H,CHOI J,LEE W H,et al.Measurement and analysis on land-to-ship offshore wireless channel in 2.4 GHz [J].IEEE wireless communications letters,2017,6(2):222-225.
[4] 陈彪,王健,杨宏民,等.调频广播传播预测方法分析与本地应用研究[J].电波科学学报,2013,28(2):378-384.CHEN B,WANG J,YANG H M,et al.Analysis and local application research on propagation prediction method for analogue FM broadcasting[J].Chinese journal of radio science,2013,28(2):378-384.(in Chinese)
[5] International Telecommunication Union.Recommendation ITU-R P.452-15 prediction procedure for the evaluation of interference between stations on the surface of the Earth at frequencies above about 0.1 GHz [S].Geneva:ITU,2013.
[6] International Telecommunication Union.Recommendation ITU-R P.1546-5 Method for point-to-area predictions for terrestrial services in the frequency range 30 MHz to 3 000 MHz[S].Geneva:ITU,2013.
[7] International Telecommunication Union.Recommendation ITU-R P.1812-2 a path-specific propagation prediction method for point-to-area terrestrial services in the VHF and UHF bands [S].Geneva:ITU,2012.
[8] International Telecommunication Union.Recommendation ITU-R P.2001-1 a general purpose wide-range terrestrial propagation model in the frequency range 30 MHz to 50 GHz [S].Geneva:ITU,2013.
[9] 夏治平,董雷,胡军,等.移动多媒体广播业务S波段电波传播模型比较[J].电波科学学报,2011,26(1):170-174.XIA Z P,DONG L,HU J,et al.Comparison of S-band radio propagation models used for CMMB service[J].Chinese journal of radio science,2011,26(1):170-174.(in Chinese)
[10] 徐弘良.基于ITU-R P.1546计算“黑广播”覆盖范围[J].上海信息化,2017,8(1):68-71.XU H L.Calculation of "black radio" coverage based on ITU-R P.1546 [J].Shanghai informatization,2017,8(1):68-71.
[11] 陈江彦.采用ITU-R P.1546-3建议书的海上VHF无线覆盖预测方法[J].航海技术,2009,3(1):39-42.Chen J Y.Method of the Recommendation ITU-R P.1546-3 for VHF Field-Strength Prediction over sea propagation [J].Marine technology,2009,3(1):39-42.(in Chinese)
[12] 芦伟东.基于ITU-R P.1546建议书的电波传播仿真研究[J].中国无线电,2014,9(1):60-61.LU W D.Research on Radio Wave Propagation Simulation Based on Recommendation ITU-R P.1546 [J].China Radio,2014,9(1):60-61.(in Chinese)
[13] 中华人民共和国广播电影电视电视部.GB/T 14109-93 电视、调频广播场强测量方法[S].北京:中国标准出版社,1993.
[14] 国家无线电管理委员会.GB/T 14431-1993 无线电业务要求的信号/干扰保护比和最小可用场强[S].北京:中国标准出版社,1993.
[2] KASAMPALIS S,LAZARIDIS P I,ZAHARIS Z D,et al.Comparison of Longley-Rice,ITU-R P.1546 and Hata-Davidson propagation models for DVB-T coverage prediction [C]//IEEE International Symposium on Broadband Multimedia Systems and Broadcasting,2014:1-4.
[3] LEE J H,CHOI J,LEE W H,et al.Measurement and analysis on land-to-ship offshore wireless channel in 2.4 GHz [J].IEEE wireless communications letters,2017,6(2):222-225.
[4] 陈彪,王健,杨宏民,等.调频广播传播预测方法分析与本地应用研究[J].电波科学学报,2013,28(2):378-384.CHEN B,WANG J,YANG H M,et al.Analysis and local application research on propagation prediction method for analogue FM broadcasting[J].Chinese journal of radio science,2013,28(2):378-384.(in Chinese)
[5] International Telecommunication Union.Recommendation ITU-R P.452-15 prediction procedure for the evaluation of interference between stations on the surface of the Earth at frequencies above about 0.1 GHz [S].Geneva:ITU,2013.
[6] International Telecommunication Union.Recommendation ITU-R P.1546-5 Method for point-to-area predictions for terrestrial services in the frequency range 30 MHz to 3 000 MHz[S].Geneva:ITU,2013.
[7] International Telecommunication Union.Recommendation ITU-R P.1812-2 a path-specific propagation prediction method for point-to-area terrestrial services in the VHF and UHF bands [S].Geneva:ITU,2012.
[8] International Telecommunication Union.Recommendation ITU-R P.2001-1 a general purpose wide-range terrestrial propagation model in the frequency range 30 MHz to 50 GHz [S].Geneva:ITU,2013.
[9] 夏治平,董雷,胡军,等.移动多媒体广播业务S波段电波传播模型比较[J].电波科学学报,2011,26(1):170-174.XIA Z P,DONG L,HU J,et al.Comparison of S-band radio propagation models used for CMMB service[J].Chinese journal of radio science,2011,26(1):170-174.(in Chinese)
[10] 徐弘良.基于ITU-R P.1546计算“黑广播”覆盖范围[J].上海信息化,2017,8(1):68-71.XU H L.Calculation of "black radio" coverage based on ITU-R P.1546 [J].Shanghai informatization,2017,8(1):68-71.
[11] 陈江彦.采用ITU-R P.1546-3建议书的海上VHF无线覆盖预测方法[J].航海技术,2009,3(1):39-42.Chen J Y.Method of the Recommendation ITU-R P.1546-3 for VHF Field-Strength Prediction over sea propagation [J].Marine technology,2009,3(1):39-42.(in Chinese)
[12] 芦伟东.基于ITU-R P.1546建议书的电波传播仿真研究[J].中国无线电,2014,9(1):60-61.LU W D.Research on Radio Wave Propagation Simulation Based on Recommendation ITU-R P.1546 [J].China Radio,2014,9(1):60-61.(in Chinese)
[13] 中华人民共和国广播电影电视电视部.GB/T 14109-93 电视、调频广播场强测量方法[S].北京:中国标准出版社,1993.
[14] 国家无线电管理委员会.GB/T 14431-1993 无线电业务要求的信号/干扰保护比和最小可用场强[S].北京:中国标准出版社,1993.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |