回动
- 与 回动 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Through tow coherent synthesis of units, circuital and special types, high-power and high-repetitive pulse sources are designed, which is necessary for the middle- and far-range detection of UWB impulse radar.
然后对超宽带冲激雷达动目标检测方法进行了研究,目标回波识别检测是超宽带冲激雷达动目标检测的合适方法。
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The main contents is: analyzing some detection method to moving target nowadays; particular studying the principle of detection moving target in SAR; analyzing SAR imaging theory and the echo model of moving target; discussing conventional SAR imaging , the movements of target cause the changes of doppler mass center and regulable frequency, and the changes cause effect the imaging result; introducing the estimation method of doppler parameter; analyzing theory of DPCA, derivating the formula needed, and validating it's validity and practicability through simulation; advancing the improved DPCA algorithm that combine the advantage of DPCA and ATI, and validating it through computer simulation; using the revision algorithm to range ambulate based on keystone transformation, and validating it through computer simulation; discussing the compensation art of SAR imaging.
主要内容有:分析了现有的一些动目标的检测方法;详细研究了SAR动目标检测的原理;分析了SAR成像理论和运动目标的回波模型;探讨常规SAR成像时,目标运动引起的多普勒质心和调频率变化,以及这些变化对成像结果的影响;介绍了多普勒参数的估计方法;分析了DPCA原理,推导所需要的基本公式,并仿真验证其有效性和实用性;提出了结合DPCA和ATI优点的改进DPCA算法,并仿真验证;探讨了SAR成像中的运动补偿技术。通过对仿真结果的分析,本文提出的方法具有一定的指导意义和参考价值。
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To change sense of rotation at GK 14.2 -GK 25.2 a reversing gearbox GW 14.1 may be used.
要改变GK 14.2 -GK 25.2旋转方向,请使用GW 14.1回动变速箱。
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Device used to move automatic guns in a vertical plane. A reversing or reciprocating drive system provides motion.
喷枪在垂直面自动移动的装置,一个回动的或往复式的提供移动的装置。
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For double-circuit transmission Lines, when one of the two from its internal faults ,under mutual inducing influence, pilot protective Relaying of the sound line may lead maloperation.
平行双回线中一回线路出现内部故障,由于两回线互感的影响,非故障线路纵联保护,可能会误动。
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The motion dynamics and echo models of the precessing warhead in single frequency are set up. Based on a quantitative analysis on echo spectrum and micro-Doppler modulation of precessing cone, a precession parameter estimation method by echo correlation and spectrum width is proposed. The experiments on data by simulation and darkroom measurement verify the method.
建立了单频信号下雷达观测弹头的进动模型和回波模型,通过对进动弹头回波频谱与微多普勒调制特性的定量分析,提出了利用回波相关方法和频谱展宽估计进动参数的方法,并利用暗室测量数据对该方法的性能进行了实验验证。
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This approach followed a novel idea: the main-lobe clutter spectrum is regular for the deviation azimuth of clutter is corresponding to its Doppler frequency, while the returns of moving targets violate this regularity, so it\'s reasonable to use the azimuth error in each Doppler channel as a detector of ground moving target.
该方法以一种新的思路,利用单脉冲雷达和波束主杂波谱区固定回波的偏角与多普勒频率相对应的规律性,将动目标回波视为对这种规律性的干扰,从而利用单脉冲测角误差在主杂波谱区进行地面极低速动目标检测。
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When the timer in the back goesoff, your mouth will be permanently ripped open. Think of it like a reverse bear trap.
当后面的计时器到点后,你的嘴就会永久性撕开,就象一个回动式捕熊器。
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When the timer at the back goes off...your mouth will be permanently ripped open.Think of it like a reverse bear trap.
当后面的计时器到点后,你的嘴就会永久性撕开,就象一个回动式捕熊器。
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When the timer at the back goes off...your mouth will be permanently ripped open.Think of it like a reverse bear trap.
当后面的计时器到点后,你的嘴就会永久性撕开,就像一个回动式捕熊器。
- 推荐网络例句
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。