查询词典 tracking

Good dynamic response performance of both command tracking and disturbance rejection characteristics can be achieved simultaneously.The simulation results are given to demonstrate the effectiveness of the controller.

经过多年的发展，IM C方法的应用已经从线性系统扩展到了非线性和多变量系统，并产生了多种设计方法，如零极点对消法，预测控制法，针对P ID控制器设计的方法等。

The simulation results show that the optimal 2DOF PID controller has good dynamic response performance of both command tracking and disturbance rejection characteristics for the output power of the PEMFC.

仿真结果表明，经优化整定后的二自由度PID控制器，可使PEMFC的输出功率能较好地跟踪给定期望值的变化，同时也可更好地抑制外扰。

You can purchase many commercially available defect tracking databases or you can build your own.

你可以在市场上买到很多缺陷跟踪数据库，你也可以自己建一个。

Due to the high dedication and commintment of the original staff members, exposure to suggestions and innovations, and presence of its own game tracking and player ranking system, which was being constantly developed and improved, the league gained tremendous popularity and recognition within a short period of time.

由于当时的组织者们的巨大付出，开诚布公的吸取建议和改进，以及游戏本身和选手分级制度的不断发展和改善，联赛短时间内就得到了巨大的成功和认可。。

In satellite communications, the process of locking tracking equipment on a signal from a communications satellite.

在卫星通信中，通过来自通信卫星上的一个信号锁定跟踪设备的过程。

In order to explore the inherent laws of anti-rut performance of asphalt concrete reinforced with different position grid, the 10 cm depth test mould is utilized to test anti-rut performance of asphalt concrete with different position grid, then creep parameters are obtained by actual experiment, and viscoelasticity finite element model is established to commutate the biggest shearing stress of different depth wheel tracking model.

为探索格栅层位对加筋沥青混凝土抗车辙性能影响的内在规律，采用10 cm深车辙试模对不同格栅层位的沥青混凝土进行车辙试验，实测蠕变参数，建立粘弹性有限元模型，对不同深度的车辙模型进行最大剪应力计算，最后将二者对比分析。

Have developed a complete set of quality management system, and comprehensive product tracking service.

已形成一套完整的品质管理体系，并对产品全方位的跟踪服务。

It is a complete solution for tracking IT assets across your enterprise.

这是一个完善的用于跟踪你的企业中的IT资产的解决方案。

In the condition of long pseudo code and large carrier Doppler frequency shift, the number of FFT points in the conventional synchronous acquisition algorithm is too large, the complex multiplication is of high computational complexity and large time cost, and the parameter evaluation acquired in a long duration is not applicable for carrier tracking because it is too old.

当伪码较长、载波多普勒频移较大时，传统的同步捕获算法进行的FIT点数较多，复数来加运算量大，耗时长，而在校长的捕获时间内，捕获得到的参数估计过于陈旧，无法应用于载波跟踪，为此，文中提出了一种改进的快速同步方法。

to reduce the impact of carrier frequency offset in ofdm system,this thesis designs a new carrier frequency offset estimation scheme for ofdm system.the carrier frequency offset estimation includes acquisition and tracking.we adopt variable step size adaptive algorithm.the acquisition range of the proposed algorithm is as large as one half of the overall signal bandwidth.through this method we can not only avoid the feedback by using forward error correction,but also reduce the times of complex multiplication in order to reduce the power consumption of the system.this algorithm not only has low complexity and fast convergence nut also can improve the demodulation performance of ofdm system.computer simulation illustrates the superior performance of the proposed algorithm with regard to estimation accuracy in both awgn channel and multi—path channel.

摘 要：为了减小正交频分复用系统受频率偏差的影响，在ofdm系统中设计了一种新的载波频偏估计算法。频偏估计包括跟踪和捕获两个阶段，文中采用变步长自适应算法来进行跟踪，这个跟踪算法的捕捉范围是整个信号带宽的一半。通过此方法，不但可以利用前向纠错的方式来避免反馈，而且可以缩减复数乘法的次数以降低计算复杂度和系统功耗。该方法运算复杂度低，并具有较好的收敛性，能改善odfm的解调性能。从计算机的仿真效果可以看出无论是在awgn信道上还是在多径信道上都表现出了卓越的性能。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。