The effect of atmospheric turbulence and vibration of the FSO platform on signal tracking system is discussed.
针对光无线通信的特点，探讨了大气湍流和通信平台抖动对激光传输的影响。
This paper shows some new methods just like residual flow increment, signal tracking, traveling wave, transient state and complex selection.
本文列举了适用于谐振接地系统的各类新兴方法。如残流增量法、注入信号寻迹法、行波法、暂态法以及综合选线法。
Frequency synthesizer composed of PLL is widely used in radar system because of PLL specialties such as narrow band, signal tracking and filter.
由于锁相环电路具有的窄带、跟踪、滤波等优点，因此在现有的雷达系统中，普遍采用由锁相环构成的频率综合器。
This article narrated the FPGA unique feature and the design flow, discussed the main point of using the FPGA design radar signal tracking device.
叙述了FPGA的结构特点和设计流程，讨论了利用FPGA设计雷达信号跟踪器的要点。
Signal acquisition can be considered as a coarse estimation of the corresponding parameters, while the signal tracking a fine estimation of the parameters.
信号捕获可被视为是对参数的粗略估计，而信号跟踪则可被视为是对参数的精确估计。
Getting a DNT signal does not oblige anyone to stop tracking, although some companies have promised to do so.
获得DNT信号并不意味着任何人都必须停止跟踪，尽管一些公司已经承诺会这样做。
With the use of eye-tracking technology, Julia Minson of the Harvard Kennedy School of Government concluded that eye contact can signal very different kinds of messages, depending on the situation.
通过使用眼球追踪技术，哈佛大学肯尼迪政府学院的朱丽亚·明森得出结论，眼神交流可以视情况而定传递截然不同的信息。
However, tracking data showed the debris would not come close enough to warrant an evacuation of the station, NASA said in a statement issued after the crew was given the all-clear signal.
然而，在空间站人员收到警报解除的信号之后，NASA发布了一份声明，称跟踪数据表明卫星碎片的距离不会接近到需要确保能进行空间站撤离的地步。
The hydrophones, a relic of cold-war submarine tracking, picked up this signal again and again during those summer months, then it was never heard again.
由冷战时期跟踪潜艇所遗留下来的水听器，在那年夏季的几个月里一再检测到这种信号，此后就再也没有发现这种声音。
After he pulls away Harris waves a signal detector over Alexis' body and produces a tracking device on the hospital wristband.
哈里斯将车停在了一边，他在亚历克西斯身体上方挥动一个信号探测器，找到了在他的护腕上有一个追踪装置。
After he pulls away, Harris waves a signal detector over Alexis' body and produces a tracking device on the hospital wristband.
哈里斯将车停在了一边，他在亚历克西斯身体上方挥动一个信号探测器，找到了在他的护腕上有一个追踪装置。
A signal confirming TanDEM-X had separated successfully from the vehicle was picked up 31 minutes later at an Antarctic tracking station.
31分钟后南极跟踪站已有信号确认TanDEM - X已经成功分离火箭。
The results of tracking the typical signal show that the system design is successful.
通过对典型信号的跟踪结果表明系统设计具有一定的效能。
B, no noise tracking method: input power amplifier (RCA), released the CD signal output, check whether there is noise.
没有噪音的跟踪方法：将功放的输入(rca)恢复，解除CD机的讯号输出，检查是否有噪音。
An alternating current phase tracking (PTAC) homodyne scheme has been used to process output signal of the Michelson interferometer.
在信号处理过程中采用了交流相位跟踪零差补偿技术(PTAC)。
This paper describes the applications such as signal source for optical tracking, virtual equipment, over all assessment etc.
就“光学跟踪信号源”、“虚拟装备”、“全面评估”等问题作一讨论。
Tracking laser signal is very difficult under natural background condition due to the interference of environment and background noises.
在自然背景条件下，由于环境噪声和背景噪声的干扰，使激光信号的跟踪变得困难。
The paper describes a seam tracking sensor with a signal source of modulated infrared beam.
叙述了一种以脉冲调制的红外光束为信号光源的焊缝跟踪传感器。
The method consists of real-time estimation of signal frequency, synchronous tracking of sampling frequency and error correction of harmonic coefficients.
该方法包括信号频率实时估计、采样频率同步跟踪和谐波系数误差校正几个要素。
The differential mode tracking technology plays an important role for receiving signal of low orbit satellites.
差模跟踪技术在低轨卫星下行信号接收中发挥着极其重要的作用。
The application fields include oil seismic exploration, communication, radar tracking, signal processing and state estimation, and so forth.
应用领域包括油田地震勘探、通讯、雷达跟踪、信号处理和状态估计等。
The approximate controller gives the rough control and the neural network controller gives the complementary signal to further reduce the output tracking error.
常规控制器对系统给出粗略控制，神经网络控制器给出补偿信号来进一步减小系统输出跟踪误差。
The paper finds out a formula to estimate the inductance value of current following inverter on the basis of tracking instruction current signal by hysteretic comparison.
从采用滞环比较方式跟踪指令电流信号出发，推导出电流跟踪型逆变器中输出电感值的估算公式。
In mobile atmosphere laser communication, we often complete acquisition, tracking, pointing and communication by signal laser and beacon laser.
在移动大气激光通信中，通常采用信号光和信标光来完成信号的捕获、跟踪、定位以及通信。
In the process of signal digital intermediate-frequency received, digital down convertion, frequency tracking of carrier and phase locked loop are the keys.
在信号的中频数字接收过程中，数字下变频、载波频率与相位跟踪是设计的关键所在。
The major part of this paper was concentrated on expatiation and comparison of the major algorithms of GPS signal searching, acquisition, tracking and navigation solution in GPS receiver.
在本文的主体部分阐述了对GPS 卫星信号搜索、捕获、跟踪及后续导航解算的主要算法及其性能比较。
In order to test the effectiveness of these modules, actual collection results of signal acquisition, tracking and positioning precision were performed.
为了测试核心模块设计的正确性与有效性，进行了真实采集信号捕获与跟踪结果的验证以及定位精度测试。
The scheme also adopts tracking differentiator to filter the signal.
并采用跟踪-微分器对信号进行了滤波。
The phase difference between the signals from beam forming net can affect the modulation index of single channel signal and can lower the precision of tracking.
和差网络输出的和差信号相位差会影响单通道信号的调制度，进而降低跟踪精度。
The result is obviously lower than the maximum tracking speeds of point signal seekers of ordinary air to air missiles.
所确定的指标明显低于常见的空-空弹点源信号导引头的最大跟踪角速度。
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