CDMA移动卫星通信系统的实验研究

Proceedings of IEEE 3rd International Symposium on Spread Spectrum Techniques and Applications (ISSSTA'94) Pub Date : 1994-07-04 DOI:10.1109/ISSSTA.1994.379548

T. Ikegami, Y. Arakaki, S. Taira

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引用次数: 0

摘要

对直接序列扩频CDMA通信系统在实际陆地移动卫星信道中的性能进行了实验评估。利用ETS-V卫星在城市和郊区l频带环境下的现场测试结果表明，该3mhz带宽的陆地移动卫星信道可以看作是一个非频率选择性衰落信道和一个阴影信道。误码性能可以使用信号功率测量来估计，就好像它们是窄带调制信号一样。根据ETS-V卫星的试验结果，提出了一种个人卫星通信的原型系统，并计划利用将于1994年8月发射的ETS-VI卫星在s波段进行现场试验。

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Experimental investigation of CDMA mobile satellite communication system

The performance of a direct sequence spread spectrum CDMA communication system in an actual land mobile satellite channel is experimentally evaluated. Field test results using the ETS-V satellite in urban and suburban environments at L-band frequency show that this land mobile satellite channel of 3 MHz bandwidth can be seen as a non-frequency selective Rician fading channel as well as a shadowing channel. The bit error performance can be estimated using signal power measurements as if they were narrow band modulation signals. Based on the experimental results of the ETS-V, a prototype system for the personal satellite communication is proposed and field tests are planned on the S-band frequency using the ETS-VI satellite which will be launched in August 1994.<>

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Proceedings of IEEE 3rd International Symposium on Spread Spectrum Techniques and Applications (ISSSTA'94)

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