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基于形状统计量的地面运动车辆识别 被引量:1
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作者 朱明霞 朱继南 聂伟荣 《弹道学报》 EI CSCD 北大核心 2001年第4期34-37,46,共5页
对典型车辆目标 (如轮式车、履带式车 )的地震动信号进行分析和处理 ,针对信号的功率谱提出了用形状统计量作为目标识别的特征 ,并对提取出的特征利用神经网络进行了目标识别 .经过仿真实验 。
关键词 地震动 形状统计特征 功率谱 目标识别 战车 地面运动车辆 信号分析
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The shape character and development stage of nebkha 被引量:1
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作者 武胜利 《High Technology Letters》 EI CAS 2009年第4期440-445,共6页
Based on statistical analysis on morphological data of nebkhas surveyed in the Hotan River Basin,Xinjiang, the changing regularity and characters of nebkhas’ morphology in different development stageshave been discus... Based on statistical analysis on morphological data of nebkhas surveyed in the Hotan River Basin,Xinjiang, the changing regularity and characters of nebkhas’ morphology in different development stageshave been discussed. Results indicate that there exist better correlation among length, width and altitudeof all kinds of nebkhas, but there are certain various shape characters in different nebkhas and the sametype of nebkhas in differential development stages. On account of analysis on mathematical imitation ofnebkhas’ shape characters, regional ecological environmental and aeolian characters, the development ofthe nebkha can be divided into a growing stage, a stabilizing stage and a declining stage. 展开更多
关键词 nebkha shape character growth stage Hotan River Basin
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