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作 者:GAN Liangcai DING Yahui LI Yuanyuan
机构地区:[1]College of Electronic Information, Wuhan University, Wuhan 430079, China
出 处:《Chinese Journal of Electronics》2007年第1期132-135,共4页电子学报(英文版)
基 金:This work is supported by the National Natural Science Foundation of China (No.69772015, No.60372056).
摘 要:Based on the time-variant and dispersive properties of short-wave channel and the strong antijamming property of Frequency hopping (FH) system, a new short-wave wideband channel model is presented in the paper, which consist of propagation model and noise and interference model. Compared to Watterson model, the channel model could describe the characteristic of short-wave channel, such as delay spread, Doppler shift and Doppler spread, whose bandwidth was wide. The performance of short-wave wideband channel model was analyzed. The simulation and analysis result showed that the channel model Could reveal the time diffusion and frequency diffusion of short-wave channel, and noise and interference of short-wave FH/DQPSK system. The channel model could be used to test conventional narrowband and frequency-hopping short-wave systems as well as wideband, direct sequence, spread spectrum short-wave systems.
关 键 词:Short-wave channel Frequency hopping (FH) Propagation model Noise and interference model.
分 类 号:TN911.4[电子电信—通信与信息系统] TN911.22[电子电信—信息与通信工程]
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