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tracking   performance
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  相似匹配句对
     On Tracking
     关于统调
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     The tracking was successful.
     跟踪结果理想.
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     Immigration Canada
     加拿大移民种种
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     kishidai Nakamura and G.
     kishidaiNakamura、杨谷舟蛾G.
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     The Effect of Handedness on Tracking Performance
     利手因素对追踪操作的影响
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The phese-lockcd frequevcy multiplier described in ibis paper is a complex control system which has excellent performance in low frequency wide band operation. Since a sample-hold type discriminator is employed in this loop. the output ripple inherent in ordinary phase discriminator is restrained and the parasitic frequency modulation in frequency-multiplied output is avoided to a great degree. As a result, the time constant of low-pass filter can be kept very small, or even be zero, thus cattsing a shortening...

The phese-lockcd frequevcy multiplier described in ibis paper is a complex control system which has excellent performance in low frequency wide band operation. Since a sample-hold type discriminator is employed in this loop. the output ripple inherent in ordinary phase discriminator is restrained and the parasitic frequency modulation in frequency-multiplied output is avoided to a great degree. As a result, the time constant of low-pass filter can be kept very small, or even be zero, thus cattsing a shortening of the capture time. Also,a specially designed AGC circuit is adopted in this loop that not onlyinsures the system stability, but also gives a good tracking performance. Thedesign principles presented in this paper have been verified experimentally.

本文所分析的是一种作为复合控制系统的锁相倍频器,它在低频宽带运用时具有优良的性能。环路中采用了一种采样一保持型的鉴相器,抑制了普通鉴相器所固有的输出脉动分量,在很大程度上避免了倍频输出中的寄生频率调制现象;同时,低滤通波器的时问常数还可取得很小,甚至完全省去,这样又缩短了捕捉时间。环路中还增设了一种特殊设计的自动增益控制电路,既保证了系统的稳定性,又获得了良好的跟踪性能。文章对所提出的设计原则进行了实验验证。

The methods of the cross-coupled constant-gain filtering and the cross-coupled piecewise constant-gain filtering are proposed for tracking systems with a radar measuring range and vdocity simultaneously. Some variants of them and the cross-coupled Kalman fihering are tested by computer simulations under the same condition. Their tracking performances and the computer duty requirements are compared.

本文对同时测距和测速的雷达跟踪系统提出了互耦常增益滤波和互耦分段常增益滤波的方案,在相同的模拟条件下,对其中一些方案和互耦卡尔曼滤波用计算机做了模拟试验,比较了它们的跟踪性能和对计算机的负荷要求。

A simulation result of one-step-ahead optimal controller is presented. A simulated example of Diesel-Generator control system is used to demonstrate the limitation of the controller. It is pointed out that the outputf tracking performance of the controller is not efficient for the nonminimum phase systems in the case of chan-ged load.

在自适应控制中,一步前最优控制在理论与应用两方面都有十分重要的意义。然而关于这种控制器的局限性,文献中却很少指出。本文通过对—内燃机—发电机控制系统的仿真,指出对于非最小相位系统,当负荷变动时,一步前最优控制的输出跟踪效果不佳。

 
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