| 浅海随机时变声信道的时间平稳性 |
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| 引用本文： | 梁yun莲 许水源.浅海随机时变声信道的时间平稳性[J].厦门大学学报(自然科学版),1990,29(4):434-438. |
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| 作者姓名： | 梁yun莲 许水源 |
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| 作者单位： | 厦门大学海洋学系，厦门大学海洋学系，厦门大学海洋学系，厦门大学海洋学系 青岛中国科学院海洋研究所 |
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| 摘 要： | 用统计方法的非参数法—输次检验。检验信号通过随机时变声信道的时间平稳性问题。对多次海上实验样本进行检验,结果表明:随机时变声信道的响应在海况1～3级、距离600～1 000 m,其平稳时间大于 2 min。
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| 关 键 词： | 随机时变 浅海 声信道 平稳性 信号 |
On the Time Stationariness to a Random Time-Variant Acoustic Channel in Shallow Sea |
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| Liang Yunlian Xu Shuiyuan Pu Yubin Lin Xing Dept. of Oceanog..On the Time Stationariness to a Random Time-Variant Acoustic Channel in Shallow Sea[J].Journal of Xiamen University(Natural Science),1990,29(4):434-438. |
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| Authors: | Liang Yunlian Xu Shuiyuan Pu Yubin Lin Xing Dept of Oceanog |
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| Institution: | Liang Yunlian Xu Shuiyuan Pu Yubin Lin Xing Dept. of Oceanog. |
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| Abstract: | The time stationariness of a random time-variant acoustic channel in shallow sea is investigated by means of the runs-test method, a nonparametric statistical one. The independence of interval samples, the stationariness of sample mean value and correlation function are tested respectively through five acoustic signal transmission experiments at Xiamen Port. It is showed that the time scaIe of stationariness fof the channel reponce is more than 2 minutes while with the range about 600- 1 000 metres at sea state level about 1-3 |
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| Keywords: | Runs-test Stationariness Time-variant Acoustical channel |
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