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- Since the normal target detection method is unfit for the target detection of impulse radar,a novel target detection method based on the wavelet pack energy feature and the LVQ artificial neural networks(ANN) is presented. 基于常规雷达的目标检测方法不能很好地适应冲击雷达目标的检测,提出了一种基于小波包能量特征与LVQ神经网络相结合的新颖目标检测方法;
- Keywords cutting vibration;wavelet pack analysis;signal acqirement; 切削振动;小波包分析;信号提取;
- The auditorium was packed that night. 这天晚上,礼堂里挤满了人。
- He packed up his things and left. 他把东西装进箱子里就动身了。
- I'd only gone five miles when the engine packed up. 我刚开出5英里,汽车的引擎就出了毛病。
- The old cat quietly packed up in his sleep. 那只老猫在睡梦中静静地死去。
- Let's pack up and spend a week in the countryside. 咱们收拾好东西到乡下去过一个星期吧。
- It was vodka, and it packed quite a punch. 这是伏特加酒,它有强烈的刺激作用。
- The theater was packed with children. 那家戏院挤满了小孩子。
- He packed up and was ready to go. 他整理好行装准备出发。
- She packed the children off to bed. 她把孩子全打发去睡觉了。
- All his camping gear was packed in the rucksack. 他的野营物品全都放在背囊里了。
- How would you pack the goods we have ordered? 我们订购的这批货,不知你们是怎么包装的?
- He used to smoke a pack of cigarette a day. 他过去经常一天抽一包香烟。
- We leave tomorrow but I haven't begun to pack yet! 我们明天动身,但我现在还没开始收拾行李呢!
- The ship was nosing a way through the ice pack. 轮船小心地通过大块浮冰。
- About two thousand delegates packed the hall. 约有2000名代表把礼堂挤得满满的。
- The brass band still plays to packed houses. 这支铜管乐队卖座率仍然很高。
- The bus was packed with noisy schoolchildren. 这辆公共汽车里挤满了吵吵嚷嚷的小学生。
- We were packed off to stay in the country. 都把我们送到乡下去了。