1) underwater lidar system
水下激光探测系统
1.
Analysis of underwater lidar system s stealthness;
水下激光探测系统隐蔽性分析
2) Underwater laser detection
水下激光探测
1.
The technology of underwater laser detection has very important practical value at many fields such as detection of underwater target,ocean geological reconnaissance and target recognition.
水下激光探测技术在水下目标搜索、海洋地质勘探、目标识别等领域都具有重要的应用价值。
2.
For the special problems on underwater laser detection,a special data acquisition system is designed.
针对水下激光探测遇到的特殊问题,设计了一种水下脉冲激光回波信号采集系统。
3) underwater laser detection
激光水下探测
4) underwater laser surveying system
水下激光测量系统
5) laser exploration system
激光探测系统
1.
Signal Denoising of Laser Exploration System Using Adaptive Lifting Scheme;
基于自适应提升方案的激光探测系统消噪
2.
According to echo signal characteristic of the laser exploration system,the paper adopts the adaptive lifting wavelet transform algorithm and brings forward a update filter and predictor filter design,which implements adjusted adaptively predict and update operator and strengthens the mutuality of the processing information and enhances the accuracy of systemic detective echo signal.
采用自适应提升小波方案,根据激光探测系统接收的回波信号特征,提出了一种更新滤波器和预测滤波器的设计方案,从而实现了自适应地调整预测和更新算子,增强了与处理信息的匹配,有效地提高了系统输出回波信号的峰值信噪比。
6) Laser detecting System
激光探测系统
1.
To pulse laser detecting system,when the optic path time difference with different scattering area elements is larger than the shooting laser pulse width,the back laser pulse width will be broaden,and the corresponding pulse peak power will be lower,adding to the limited receiving bandwidth,the target equivalent LCS can t be calculated using the general formula.
对于窄脉冲激光探测系统,当激光经探测目标不同散射面元散射后到达接收机的时间差大于发射激光脉冲宽度时,存在激光回波脉冲宽度展宽和相应峰值功率下降问题,加上激光接收机响应带宽的限制,由此,对探测目标的等效LCS不能简单地由一般的公式计算。
补充资料：激光水下目标探测
激光水下目标探测
laser underwater target detection
刃ater}标的了摄影i离较军事三置通毛之间l水中秒和列如，53微:和水少。飞一激光已湾战载蓝iiguang shuixia mubiQo tanee激光水下目标探测、(l aser undertarget detection)用激光探测水下「距离、位置、形状的技术。与普通水下和声纳等探测手段相比，具有探狈」跳远、精度较高、识别能力较强等优点。上可用于探侧水雷、潜艇等水中目标 激光测深激光水下目标测量落过测量激光脉冲往返于观测点至目拓所用的时间，根据光速(激光在大气禾的传播速度分别约为2.99/108米/2.44/108米/秒)推算出目标深度。1机载Nd激光探测系统分别用波长0.:米和1.06微米激光探测飞机飞行高度中目标的深度，探侧波的脉宽约10纳1机相对于目标运动和水面轻微波动对测深结果无实质性影响。在1991年浓争中，以美国为首的多国部队曾将初极管53微高度索速，探1次/测技{光发干口显每瞬「点按射的经放在显相对离子率为级，然光助照、散照明 5米采用「手‘悬像增，水米。}留石明光器件水中行引物分洁)飘孚物敷光约荧抗的则水与水光一本，目标巾目于水究，粼水光的咋用绿激光探测系统用于探测水雷。以二泵浦固体激光器为发射器(激光波长O米、脉冲能量2毫焦耳)，飞机飞辛130一500米，其探雷性能参数为:契率5一25千米丫小时，探雷水深达24到雷概率0.9一住95，探雷虚警率不大刁小时。 激光扫描成像采用光束扫描书术对水下目标成像。扫描成像装置由授射器、光电探测器、视频信号处理电足示器组成。细光束在视场中逐行扫描，时只照亮目标表面的一个点，多个光具行、帧形成二维栅状照明光束。目标五微弱回波被光电探测器转换成电信号。
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参考词条