Unlike other Yuanwang space tracking ships, Yuanwang 4 lacks the ability to control the spacecraft, and serves mainly for spacecraft tracking and communications relay roles.
不像其它的远望航天跟踪船，远望4号缺乏能力控制航天器，并且服务主要用于航天器跟踪和通信中继角色。
The attitude tracking control of spacecraft is demanded in many missions.
许多空间飞行任务要求航天器姿态跟踪控制。
For rigid spacecraft attitude tracking system with uncertain inertia matrix and external disturbances, an adaptive sliding mode approach is presented.
针对存在不确定惯量矩阵和外干扰的刚体航天器姿态跟踪系统，提出了一种自适应滑模控制方法。
Doppler tracking measurement is one of the main methods for tracking a spacecraft.
多普勒追踪是航天器测量的主要手段之一。
Output tracking problems for non minimum phase system existed in many practical problem, such as aircraft flight controlling, spacecraft launching and flexible manipulation, are considered.
讨论了一类非最小相位系统的输出跟踪问题。非最小相位系统广泛存在于机器人柔性结构控制、飞机的飞行控制和航天器发射等实际问题中。
Once a fault is detected and isolated, controller parameters can be reconfigured to compensate the loss of performance and keep the good attitude tracking accuracy of the spacecraft.
当诊断出故障时，重构控制律的参数对系统进行补偿控制，使得故障下飞行器的姿态跟踪精度得以维持。
Once a fault is detected and isolated, controller parameters can be reconfigured to compensate the loss of performance and to keep the good attitude tracking accuracy of the spacecraft.
当诊断出故障时，重构控制律的参数对系统进行补偿控制，使得故障下飞行器的姿态跟踪精度得以维持。
Continuous tracking of a rotating spacecraft in conventional antenna modes is not possible because of the pattern constraints of a single antenna.
由于受单天线的方向性限制，采用传统的天线模式不能实现对旋转飞行器连续跟踪测量。
An on-ground terminal linked to a spacecraft or satellite by an antenna and associated electronic equipment for the purpose of transmitting or receiving messages, tracking, or control.
一种地面终端站，通过天线或有关电子设备同航天飞机或卫星相连，起传递、接收信息、输导或控制等作用。
The ship is equipped with an S-band high-accuracy tracking radar as well as sophisticated computer and communications systems to help calculate the re-entry orbit for the spacecraft.
该船装备一套S-波段高精度跟踪雷达和复杂的计算机和通信系统去帮助计算宇宙飞船的再入轨道。
The ship is equipped with an S-band high-accuracy tracking radar as well as sophisticated computer and communications systems to help calculate the re-entry orbit for the spacecraft.
该船装备一套S-波段高精度跟踪雷达和复杂的计算机和通信系统去帮助计算宇宙飞船的再入轨道。
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