ON A MODEL FOR RADIO PROPAGATION IN LAND MOBILE COMMUNICATION

被引:0
作者
TERADA, T
机构
[1] No 67-2-A105 Sakaigihoncho Hodogaya-Ku, Yokohama
关键词
D O I
10.1080/02726349508908427
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This article describes a study on a model for radio propagation in a land mobile communication (LMC), which differs from models based on the well-known theory for tropospheric propagation. The new propagation model has been constructed from a phenomenological, point of view for an LMC in an area where artificial or natural obstacles are present. This new model is based on evidence that the clearance of the propagation Baths is lost and the signal received by a mobile station is very weak. The model is constructed by means of the meson field, from an analogy between the interaction of nucleons and the mobile communication between stations, lying in an area with artificial or natural obstacles. The application of this meson field model. to experiments of radio propagation in LMC, made in areas with artificial or natural obstacles, shows that the field intensity level can be described by the model in the entire range of the distance. The study also shows that the LMC, mentioned above, should be considered as a communication, in which stations do not communicate with one another by a Hertzian wave, but by a wave-packet, having an energy not directly dependent on the frequency of a signal. The meson field model, at present, cannot be employed as a technique for predicting the field intensity level, since constants accompanied by the model are not obtained for given conditions such as antenna heights, terrain irregularities and so forth.
引用
收藏
页码:363 / 376
页数:14
相关论文
共 16 条
  • [1] IEEE Trans. Veh. Technol, VT-37, (1980)
  • [2] Union L.T., Propagation Statistics Required for Broadcasting Services Using the Frequency Range 30 to 1000MHZ, Geneva, 5, pp. 232-244, (1982)
  • [3] Jakes W.C., Microwave Mobile Communications, (1974)
  • [4] Janossy L., Cosmic Rays, (1950)
  • [5] Lebherz M., Wiesbeck W., Krank W., A Versatile Wave Propagation Model fbr the VHF/UHF Range Considering Three-Dimensional Terrain, IEEE Trans. Antennas Pnopagat, AP-40, pp. 1121-1131, (1992)
  • [6] Lee W., Mobile Communications Engineering, (1982)
  • [7] Longley A.G., Rice P.L., Prediction of Tropospheric Radio Transmission Loss over Irregular Terrain
  • [8] A Computer Method - 1968, ESSA Technic, (1968)
  • [9] Morita K., T Hikage N., Kawakami H., 150/900 MHz Band Mobile Propagation Test in KUWAIT and BAHRAIN, IEICE Japan Technic, AP87, 14, (1987)
  • [10] Morita K., Kojima K., Nakano T., Haida T., Estimation Formula of VHF/UHF Band Field Strength for Mobile Communications in Suburban Area, IEICE Japan Trans, J72-B-U, pp. 402-410, (1989)