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文中研究了无人艇海上通信的特点,针对海面信道易出现频域选择性衰落、无人艇平台摇摆剧烈信道质量随时间快速变化这两点,将双天线......

目的：探讨复方二氯二异丙胺治疗酒精性脂肪性肝病患者的临床疗效及安全性。方法将97例酒精性脂肪性肝病患者随机分为两组，研究组54例......

Multiantenna technology can be implemented in several modes. These modes have varying characteristics and are used in di......