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target
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  目标
    Radar Target Recognition Using High Resolution Range Profiles
    基于高分辨距离像的雷达目标识别
短句来源
    Application of Fractal Methods in Target Detection
    目标检测的分形方法及应用
短句来源
    THE STUDY ON LASER TARGET IDENTIFICATION AND COMMUNICATION SYSTEM
    激光目标识别与通信系统研究
短句来源
    Study on Recognition of Radar Target Using Range Profiles
    雷达目标一维距离像识别研究
短句来源
    Study on Passive Underwater Target Tracking and Adaptive Guidance Law Design
    水下目标被动跟踪及自适应导引律研究
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  “target”译为未确定词的双语例句
    Application Research of Prediction Filtering Technology on Optoelectronic Target Tracking
    预测滤波技术在光电目标跟踪中的应用研究
短句来源
    Methods of Target Tracking in Frequency Domain Based on DSP
    频域下的目标跟踪方法及其在DSP中的实现
短句来源
    The study for climinating the"fulse target" in LFM radar
    消除连续波调制雷达的“泄漏假目标”的方法的研究
短句来源
    Property Analysis of Bearings only Target Tracking Algorithms
    纯方位目标跟踪算法性能分析
短句来源
    Studies of Algorithms for Maneuvering Target Tracking
    机动目标跟踪的修正输入估计(MIE)算法与自适应α—β算法
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  target
Its absolute value (|A(u)|) measures the correlation between the signal u emitted by the radar transmitter and its echo after reaching a moving target.
      
As the main application it is shown that, in general, a localization operator possesses the Fredholm property, and thus its range is closed in the target space.
      
Such an estimate is both more representative of the target region and reduces the estimation variance when compared to estimates formed by any single bandlimited window.
      
These findings provide compelling evidence that DNA is the ultimate target of these drugs that act on the human genome.
      
CHEMICAL GENOMICS FOR FASTAND INTEGRATED TARGET IDENTIFICATION AND LEAD OPTIMIZATION
      
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The paper deals with the problem of the detection and the estimation of parameters of radar signals in the Gaussian white noise from the point of view of the theory of statistical decision. The design principle of the optimum radar receiver for signals of unknown parameters is given according to the characteristics of the high-speed target at distance and to the purposes of radar systems. Unified detection procedures are established the construction and the performances of the optimum radar receivers are...

The paper deals with the problem of the detection and the estimation of parameters of radar signals in the Gaussian white noise from the point of view of the theory of statistical decision. The design principle of the optimum radar receiver for signals of unknown parameters is given according to the characteristics of the high-speed target at distance and to the purposes of radar systems. Unified detection procedures are established the construction and the performances of the optimum radar receivers are obtained.The block diagrams of these results are also shown.Emphasis is given to the case where the prior distributions are unknown, while only two parameters, velocity and distance, are discussed for the case where the prior distributions "re known. For the latter case, the optimum estimations of these two parameters and their properties are derived from the absolute loss criterion.

本文以统计判决理论观点考虑淹没于正态白噪声中雷达信号检测和参数估计问题。根据远距离高速目标的性质及雷达系统的目的,指出未知参数信号最佳雷达接收机的设计原则。建立了统一的检测程序,得出最佳雷达接收机的结构及其性能。也附有这些结果相应的方框图。 着重于论述信号参数先验分布未知的情形,对于先验分布已知的情形,只讨论了目标速度和距离两个参数。在后种情形,以绝对损失标准导出达两个参数的最佳估计程序和它们的性质。

A comprehensive review on the radar target signature of aircraft and space vehicle, essentially from the view point of ECM and radar remote sensing, has been delivered.

本文着重从电子对抗和雷达遥感角度综合评论了航空和航天目标的雷达特征问题。

This paper deals with the using of six stages differential pair transisto-f amplifier circuits with low-and-high gain in radar receivers at intermediate frequency(30MC) systems. Because it us.es pair direction cus-off limiting rather than of saturation limiting. To integrate number of minority carriers in transistor base has been avoided. So that response velocity of Receiver intermediate frequemcy systems are very rapid. Small signals after Radar target strength ocho have forcible display. If we accurately...

This paper deals with the using of six stages differential pair transisto-f amplifier circuits with low-and-high gain in radar receivers at intermediate frequency(30MC) systems. Because it us.es pair direction cus-off limiting rather than of saturation limiting. To integrate number of minority carriers in transistor base has been avoided. So that response velocity of Receiver intermediate frequemcy systems are very rapid. Small signals after Radar target strength ocho have forcible display. If we accurately select transistors and circuit parameters. Small signals have high gain, but great signals have low gain. Output signals amplitudes-input signal amplitudes have logarithmic relation. Input signal dynamic range have over 80db. If logarithmic begining point puts below 10db receiver noise level. It still has constant false-alarm rate characteristics.

本文阐述了在雷达接收机中频(30兆赫)系统中采用六级双增益级差分对晶体管放大电路时,由于它本身是采用双向截止限幅而不是饱和限幅,故避免了晶体管基区积累大量少数载流子现象。这样使接收机中频(30兆赫)系统响应速度很快,对雷达目标强回波后面的弱信号有较强的显示能力,如果管子及线路参数选得正确时,则可做到:小信号具有高增益,大信号具有低增益,输出信号与输入信号幅度成对数关系,输入动态范围可达80分贝以上。如果对数起点选在接收机噪声电平以下10分贝时,它还具有恒虚警特性。

 
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