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tracking performance
相关语句
  跟踪性能
    The Tracking Performance Analysis of Second-order Delay-lock-loops
    二阶时延锁定环跟踪性能分析
短句来源
    An Efficient Method to Improve Tracking Performance of Phased Array Radar
    改善相控阵雷达跟踪性能的一种有效方法
短句来源
    TEST FOR THE ANGLE TRACKING PERFORMANCE OF RADAR WITH REGENERATIVE FEEDBACK
    具有再生反馈雷达的角跟踪性能闭环测试
短句来源
    The simulation results show that MVUI improves the tracking performance at low probabilities of detection.
    仿真表明:MVUI提高了低检测概率时的跟踪性能,大大降低了失跟率,并提高了跟踪精度。
    An Analysis of Factors Influencing the Tracking Performance in High Elevation
    影响天线高仰角跟踪性能的因素分析
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  “tracking performance”译为未确定词的双语例句
    Instead of using transition prior as proposal distribution,UKF(unscented Kalman filter) is used to generate the proposal distributions(UPF),which takes the current measurement into account so as to improve the tracking performance greatly with less particles.
    状态转移先验概率中未考虑当前测量对状态估计的作用,为克服传统粒子滤波算法采用状态转移先验概率作为粒子滤波建议分布的缺点,采用UKF生成粒子滤波的建议分布(UPF),并从中抽样粒子。
短句来源
    Improving Target Tracking Performance Using Velocity Bound
    利用速度界提高目标跟踪性能
短句来源
    Lastly, the concept of "Transient Steady State " (TSS) and its realized approach is put forward, and TSS filter's error variance is obtained, which provides theoretical reference for the analysis of the tracking performance under the non-linear measurements.
    最后,基于一维“稳态”滤波器的已有研究成果,提出了非线性观测下滤波器的“暂稳态”概念和实现方法,并推导了状态估计“暂稳态”误差方差的解析表达式,为非线性观测下的目标跟踪性能分析提供了理论依据。
短句来源
    Since the target detection and tracking system from optical signal deals with 3D space-time signal and is a kind of passive detection systems, comparing to other target detection systems, it has a lot of features, such as concealment, anti-jamming and high precision tracking performance.
    红外或可见光成像检测及跟踪系统由于其处理的是多维信号(二维空间,一维时间),且是一种被动检测技术,故较之其它跟踪系统而言,具有隐蔽性好,抗干扰能力强,跟踪精度高等优点。
短句来源
    Afterwards, a residual phase correction mechanism for the specific subframe structure of WiMAX-OFDM system is investigated. It gives a better tracking performance than the time-domain linear interpolation.
    这之后,论文针对WiMAX-OFDM系统帧结构设计了一种残余相位跟踪校正算法,它能跟踪校正由同步不准确引起的残余相位噪声且性能好于传统的时域线性插值方法。
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  tracking performance
Master-slaver dual-leg coordination control was proposed for the biped robot with heterogeneous legs (BRHL), in order to reduce gait planning and to get a good tracking performance.
      
The feedback controller improves system tracking performance and suppresses load and mechanical disturbance while the feedforward controller compensates phase hysteresis introduced by feedback control.
      
Prediction is also implemented in the algorithm to locate the target in order to keep it stationary in the center of the image, resolve events of occlusion or masking, and increase normal tracking performance.
      
Simulations are designed to test the tracking performance of DIMM-MSJPDA algorithm.
      
The results show that the use of DIMM-MSJPDA algorithm enables the distributed multisensor system to track multiplied maneuvering targets and its tracking performance is much better than that of IMMJPDA algorithm.
      
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An investigation is conducted on noise jamming tracking performance of the amplitude-comparison monopulse tracking radar.By the examination of the p.d.f.of the transfer coefficient of the AGC ratio circuit, an approximated time-invariant system model is obtained and the statistical characteristics of the angle error voltage including the upper bound of its variation is then derived.The results show that the jamming signal itself affects only the angle sensitivity and this effect is reduced with the...

An investigation is conducted on noise jamming tracking performance of the amplitude-comparison monopulse tracking radar.By the examination of the p.d.f.of the transfer coefficient of the AGC ratio circuit, an approximated time-invariant system model is obtained and the statistical characteristics of the angle error voltage including the upper bound of its variation is then derived.The results show that the jamming signal itself affects only the angle sensitivity and this effect is reduced with the increase of the i.f.amplfier bandwidth and with the decrease of the bandwidth of AGC loop and the narrow filter subsequent to the phase detector, thus providing a useful guide to the estimation of system performance and to the determination of system parameters,

本文研究了比幅单脉冲定向系统在杂波跟踪工作情况下的统计性能.通过对AGC系统传递系数在平稳随机输入下概率密度的研究,本文得到了定向系统的近似定常系统模型,估计了这一近似所引进的误差.在此基础上确定了定向系统输出的角误差电压的统计特性.

The tracking performance of great gain 2nd-order delay-lock-loops(DLL)for PN code chip synchronization in spread-spectrum communication receivers is the-oritieally analysized and calculated by the use of the Fokker-Planck equation.Theresults show that the steady state probability density function of normalized delayerror(τ/⊿)of a great gain 2nd-order DLL is of the same form as that of a first-order DLL;for the equal mean-squared tracking jitters,the great gain 2nd-orderDLL requires 101og[1+(1/4ξ~2](dB)Less...

The tracking performance of great gain 2nd-order delay-lock-loops(DLL)for PN code chip synchronization in spread-spectrum communication receivers is the-oritieally analysized and calculated by the use of the Fokker-Planck equation.Theresults show that the steady state probability density function of normalized delayerror(τ/⊿)of a great gain 2nd-order DLL is of the same form as that of a first-order DLL;for the equal mean-squared tracking jitters,the great gain 2nd-orderDLL requires 101og[1+(1/4ξ~2](dB)Less normalized signal-to-noise ratio of data thanthe first-order DLL.Though only this kind of code loops is analyzed,this method ofanalysis is valid for carrier loops,too.The results obtained may be used as a re-ference for the DLL design.

本文运用 Fokker-Plnack 方程对用于扩展频谱通信细同步的高增益二阶时延锁定环(DLL)的稳态跟踪性能进行了理论分析和计算。结果表明:高增益二阶 DLL 同步误差的稳态概率分布与一阶 DLL 具有相似的形式;在两者同步误差的方差相等的情况下,高增益二阶DLL 所需要的归一化数据信噪比比一阶 DLL 低10log(1+1/4ξ~2)(dB)。尽管本文只分析了这种码环(DLL),但其分析方法也适用载波环,文中的结果可作为设计 DLL 时参考。

A set of filtering formulas for state estimation in velocity coordinate, in the light of data processing of the maneuver target tracking in air space with phased array radars, are derived. The simulating results show that the new method would improve the tracking performance for maneuvering targets by doubling the precision in prediction.

本文着重研究相控阵雷达跟踪剧烈运动的空间目标时的数据处理问题。推导了一组在速度坐标系中进行状态估计的滤波公式。计算机仿真结果表明,与在方向余弦坐标系中进行状态估计的方法相比,新方法可以改善相控阵雷达对剧烈运动目标的跟踪性能,对于给定的几种跟踪剧烈运动目标时的情况,雷达波束控制角的预测精度约可提高一个数量级。

 
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