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武器工业与军事技术
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体积目标
相关语句
  volume target
     Passive Tracking and Size Estimation of Volume Target on Sway Platform
     晃动平台上的体积目标被动跟踪与尺度估计
短句来源
     Simulation of Radiated Noise of the Ship as a Volume Target
     舰船作为体积目标时噪声通过特性的仿真
短句来源
     STUDY ON BEARING AND SCALEDOWN EXPERIMENT OF VOLUME TARGET BASED ON ACOUSTIC INTENSITY VECTOR
     基于声强向量法的体积目标定向和缩比实验研究
短句来源
     To test this scheme,experiment was conducted in a semi-anechoic chamber,with 3 loudspeakers simulating the sound sources of the 3 separate sections of the volume target.
     为验证此方案,在半消声室进行了非典型声强向量阵的定向实验,用3个扬声器模拟体积目标3个不同部位的声源。
短句来源
     Passive tracking and size estimation of volume target based on acoustic intensity vector
     基于声强向量法的体积目标被动跟踪和尺度估计
短句来源
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  “体积目标”译为未确定词的双语例句
     Observability Analysis of Passive Bearing of VolumeTarget in Water Based on Acoustic Intensity
     基于声强的水中体积目标被动定位的可观测性分析
短句来源
     It is more preferable thantraditional point model to estimate the precise structures of large size targets andsatisfy the requirement of modern weapon equipment to recognize targets and attackthe vital parts of targets.
     用这种模型描述目标比传统的点目标模型更有利于估计出大体积目标的细致结构,更能满足现代武器装备对目标识别和精确攻击目标要害部位的要求。
短句来源
     Research on Longitudinal Distribution Characteristics of the Radiated Noise of a Ship as a Volume Object
     作为体积目标的船舶声辐射纵向分布特性的研究
短句来源
     First, the method of studying the longitudinal distribution of ship's radiated noise sources based on time-frequency analyses using short-time Fourier transform was proposed. According to the analysis results and other references, the three highlight model of longitudinal distribution of the ship's radiated noise sources was proved.
     首先对舰船作为体积目标的辐射噪声特性进行了分析,采用短时傅立叶变换对不同的舰船通过特性进行了分析,结果表明舰船辐射噪声沿舰船纵向的分布规律可以简化为“三亮点”模型,即中后部主机部分,中部辅机部分和尾部螺旋桨部分,其中尾部辐射的噪声能量占总能量的大部分。
短句来源
     Emulation results indicate that in ideal condition three parts of ship can be tracked and ship's size can be estimated even though one of three parts can not be observed.
     仿真结果表明:本文方法能在理想模型条件下实现体积目标的各个特定部位的良好跟踪并能完成目标纵向尺度的估计; 即使在某一部位不可观测的条件下,该方法也可较好地实现对各个部位的跟踪和目标纵向尺度的估计。
短句来源
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  相似匹配句对
     Space target recognition algorithm based on volume feature
     基于体积特征的空间目标识别算法
短句来源
     N TARGET
     命中目标
短句来源
     The Aim of Translation
     翻译的目标
短句来源
     Passive Tracking and Size Estimation of Volume Target on Sway Platform
     晃动平台上的体积目标被动跟踪与尺度估计
短句来源
     Get Volume Cleverly
     巧求体积
短句来源
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例句
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  volume target
Now 80,000 acre feet of desalinised water can be counted towards the volume target for delivery.
      
The eighth issue is demonstration of low cost, high volume target production techniques.
      


in this paper,a. new system of laser 3-D range irnage acquisition and processingis described, At first,the principle of triangulation-based rangefinder and laser radar range-finder is reviewed, then their performance is compared. Also the specifications for the system are sunimarized. As a high speed 3D-vision sensor, this systerm is suited for appli-cations requiring long distance and large size object.

本文首先讨论和比较了三角法测距和激光雷达测距的原理和性能,然后描述了一种新型的基于激光雷达测距并运用于远距离、大体积目标的三维距离图象获取和处理系统,并给出了系统的性能指标和设计参数。

Objectives:To introduce the procedures and the p rimary r esults with IMRT for head and neck tumors.Methods :Fiveteen patients with head and neck tumors were included in this study fr om Jan.to Feb.2001at Cance r Center,Sun Yat-sen University of Medical Sciences,Guangzhou,China.Of them ,4were primary treatment of nasophary ngeal carcinoma (NPC);8were NPC of u ncontrolled or recurrence of local-region in nasopharynx,retropharyngeal carot id sheath region,oropharynx and upper neck region;and the other 3were the...

Objectives:To introduce the procedures and the p rimary r esults with IMRT for head and neck tumors.Methods :Fiveteen patients with head and neck tumors were included in this study fr om Jan.to Feb.2001at Cance r Center,Sun Yat-sen University of Medical Sciences,Guangzhou,China.Of them ,4were primary treatment of nasophary ngeal carcinoma (NPC);8were NPC of u ncontrolled or recurrence of local-region in nasopharynx,retropharyngeal carot id sheath region,oropharynx and upper neck region;and the other 3were the s i xth cervical vertebra neurolemmom a,meningioma and brain metastasis with lung c ancer each.Target and critic al structures were contoured accord ing to ICRU 5 0guideline.The inverse planning IMRT were created with CORVUS 3.0planni ng system(Peacock,NOMOS)and treated with segmental tomotherapy techniq ues(MIMi C).The gantry rotation arc was 105°~255°and beamlet changed every 5 °.Six patients were treated with IMRT f ollowed by conventional radiotherapy, and 9patients with IM RT alone.All patients were delivered by conventional fra ction s at 2Gy /fraction /day,5days /week.The total dose delivered with c onventional radiotherapy were 20-70Gy.Prescription dose with full course I MRT was 60-76Gy and boost dose 30-50Gy for IMRT.Results:Although the goal was to deliver a pre scribed dose of 10-76Gy to the GTV,the average mean d ose delivered was 11.42~78.04Gy to t he GTV in this s tudy.The average mean dose and volume sparing critical str uctures were lens 3 .26Gy (0.30c.c),optic nerves 19.13Gy (0.90c.c),temporal mandible joints 20.55Gy (5.54c.c),parotid gland 19.07Gy (13 .32c.c),pituitary 21.95Gy (0.76c.c),brain stem20.60Gy ( 21.21c.c),spinal cord 19.14Gy (9.28c.c).Conclusion:The tre atment of head and neck tumors with Peacock system IMRT can have more con formal dose distribution to target v olume and effectively sparing critical structures .

目的:介绍适形调强放射治疗在头颈肿瘤中临床使用的方法和初步结果。方法:2001年1月至2月我院用适形调强放射治疗头颈肿瘤15例,其中初治鼻咽癌4例,未控或复发鼻咽癌8例,第6颈椎神经鞘瘤,脑膜瘤,肺癌脑转移瘤各1例。照射靶区和敏感器官按ICRU50号文标准勾划。用孔雀系统的CORVUS做逆向治疗计划设计,用MIMiC作共面旋转照射。照射野每5°变换一次,从105°~255°旋转照射。常规外照射+后程IMRT6例,全程IMRT9例。全部病例按常规分割照射,200cGy/次,每周5次。常规外照射剂量20~70Gy。IMRT处方剂量:全程IMRT60~76Gy,后程IMRT30~50Gy。结果:尽管全部病例肿瘤体积的目标剂量是10~76Gy,但最后靶区的平均剂量可达到11.42~78.04Gy。敏感器官照射的平均剂量为,晶体3.26Gy0.30c.c视神经19.13Gy0.90c.c颞颌关节20.55Gy5.54c.c腮腺19.07Gy13.32c.c垂体21.98Gy0.76c.c脑干20.60Gy21.21c.c脊髓19.14Gy9.28c.c。结论:孔雀系统对头颈肿瘤的适形调强放疗能较好地适形照射肿瘤体积和有...

目的:介绍适形调强放射治疗在头颈肿瘤中临床使用的方法和初步结果。方法:2001年1月至2月我院用适形调强放射治疗头颈肿瘤15例,其中初治鼻咽癌4例,未控或复发鼻咽癌8例,第6颈椎神经鞘瘤,脑膜瘤,肺癌脑转移瘤各1例。照射靶区和敏感器官按ICRU50号文标准勾划。用孔雀系统的CORVUS做逆向治疗计划设计,用MIMiC作共面旋转照射。照射野每5°变换一次,从105°~255°旋转照射。常规外照射+后程IMRT6例,全程IMRT9例。全部病例按常规分割照射,200cGy/次,每周5次。常规外照射剂量20~70Gy。IMRT处方剂量:全程IMRT60~76Gy,后程IMRT30~50Gy。结果:尽管全部病例肿瘤体积的目标剂量是10~76Gy,但最后靶区的平均剂量可达到11.42~78.04Gy。敏感器官照射的平均剂量为,晶体3.26Gy0.30c.c视神经19.13Gy0.90c.c颞颌关节20.55Gy5.54c.c腮腺19.07Gy13.32c.c垂体21.98Gy0.76c.c脑干20.60Gy21.21c.c脊髓19.14Gy9.28c.c。结论:孔雀系统对头颈肿瘤的适形调强放疗能较好地适形照射肿瘤体积和有效地保护邻近敏感器官。

in the paper the special parts of volume target are observed with acoustic intensity vector according to difference among their radiated noise characteristics, then three parts are tracked with Kalman filter, and target size is estimated. Emulation results indicate that in ideal condition three parts of ship can be tracked and ship's size can be estimated even though one of three parts can not be observed.

根据体积目标的几个特定部位的辐射噪声特性的不同,应用声强向量方法对它们进行观测,然后,应用卡尔曼滤波器对它们进行跟踪,并实现目标纵向尺度的估计。仿真结果表明:本文方法能在理想模型条件下实现体积目标的各个特定部位的良好跟踪并能完成目标纵向尺度的估计;即使在某一部位不可观测的条件下,该方法也可较好地实现对各个部位的跟踪和目标纵向尺度的估计。

 
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