• Ferraro analyzed satellite data showing annual forest loss from 2008 to 2012 including during Indonesia's phase in of the antipoverty program in 7,468 forested villages across 15 provinces.

    费拉罗分析了2008年至2012年期间每年森林损失卫星数据其中包括印度尼西亚15个省份的7468个森林村庄实施脱贫计划期间的数据。

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  • Completion of the testing moves the Commercial Broadband Satellite Program (CBSP) Unit Level Variant (ULV) contract into the initial production phase.

    测试完成使商业宽带卫星计划(CBSP)的单位级别转换(ulv)进入初期生产阶段

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  • Then, base on the problem of attitude control of a satellite under development, we design a NN compensation controller for high accuracy orientation phase.

    然后基于某型小卫星姿态控制问题设计高精度定向阶段神经网络补偿控制器

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  • The main problems in GPS technology including the system bias to SLR, its own annual variety and the change of GPS satellite antenna phase center are also discussed.

    评述了GPS技术目前存在问题,包括SLR测量之间存在系统偏差、GPS技术本身可能存在的周年变化GPS卫星天线相位中心变化

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  • At last, the drop-off of the carrier rocket means the satellite has entered its self-guided phase.

    最后助推火箭脱落意味着卫星已经进入自控状态。

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  • The algorithm is applicable to precise measuring of the PN code phase of satellite positioning signals and spread-spectrum ranging signals.

    算法主要应用领域为卫星定位信号直序扩频测距信号PN相位精确测量

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  • China announced on Friday that its Moon probe project has entered the launching phase, and the satellite and the carrier rocket are ready for launch.

    周五中国宣布月球探测计划已经进入了发射阶段卫星承载火箭也已经做好了发射的准备

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  • Based on interferometry measurement theory of satellite carrier phase, the technology of land vehicle heading determination through Beidou Bi-Satellite System was studied.

    基于卫星载波相位干涉测量原理,研究利用北斗双星系统确定车辆航向相关技术

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  • The research emphasis is restartable nitrous oxide monopropellant thruster suitable for keeping the position and phase of small satellite.

    研究重点可多次启动的一氧化二氮单元推进剂推力室适用卫星位置保持相位保持。

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  • Applying the satellite image with good phase and high resolution, adopting the the method of restorative investigation, the certain authentication could be provided for judicial authority.

    利用相性分辨率卫星影像资料或森林资源档案,采取恢复性调查方法司法机关提供证据确凿鉴定意见。

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  • New nematic liquid crystal phase shifter has the unique advantages and potentials, will play an important role in phased-array radar, satellite communications in the near future.

    向列型液晶器具独特的优势发展潜力不久的将来相控阵雷达以及卫星通讯等领域起到关键作用

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  • In the course of satellite-borne GPS carrier phase measurement, cycle-slip detection and repair plays a very important role in the GPS station precision.

    星载GPS载波相位测量中,周跳的探测修复最后的定位精度至关重要作用

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  • An algorithm is presented to determine the SAR satellite attitude with the aid of the SAR satellite kinematics model and the information of GPS wide-band carried phase.

    针对姿态星载SAR成像质量重要影响,提出一种借助于SAR卫星姿态运动学特性GPS宽波载波相位信息进行SAR卫星姿态测量的算法

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  • Satellite attitude control flywheel is driven by three-phase alternate commutating brushless DC motor, schema of which is torque control model (current feedback).

    卫星姿控飞轮三相轮流换向直流电动机驱动的,采用力矩控制(电流反馈)模式

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  • Their main function is to simulate the satellite signal from the really satellite on the satellite orbit through changing code phase, Doppler shift, carrier and signal-to-noise ratio.

    主要功能就是通过改变相位多普勒频移载波比来模拟卫星轨道上真实卫星发射的信号

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  • For determination of cycle slips of GPS phase measurements and calculation of satellite orbital coordinates in GPS data processing the Chebyshev polynomial is a good method.

    GPS数据处理相位观测值卫星轨道坐标的拟合推算 ,切比多项式比较好的算法之一。

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  • Multiple correct phase reversal points in the satellite signal are founded out to accelerate the positioning and reduce the required positioning time.

    找出卫星信号多个正确相位反转加快定位的速度,减少所需的定位时间。

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  • In a GPS receiver, the signal acquisition coarsely adjusts the code phase and the carrier frequency of locally generated replicas to align with the corresponding satellite signal.

    GPS接收机信号捕获通过粗略调整本地复制信号相位载波频率卫星信号同步。

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  • It USES a high precision digital phase-locked loop (PLL) to accurately recover the Synchronous reference information of raw cloud-cover image data collected by the geostationary satellite.

    高精度数字锁相精确地恢复地球同步气象卫星采集原始云图数据同步基准信息

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  • The tolerable range of the phase-amplitude error under satellite communication has been given out and the emendation target has also been presented.

    卫星通信对多波束天线要求给出了幅相误差可容忍范围提出了误差校正指标

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  • In this paper we introduce the developmental phase and experimental equipments of long time delay phase-locked loop and also give the field test results via the satellite "Symphonic".

    本文叙述了延时研制情况实验设备同时也给出通过交响乐卫星现场试验结果

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  • With the simultaneously generated precision series, the response of ionospheric phase delay to the LEO satellite orbit biases is assessed and analyzed.

    同步生成的模拟精度序列为参照,就掩星观测中电离层延迟LEO卫星轨道误差响应程度进行了估计分析。

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  • No other satellite has flown so close to the gas giant during the main phase of its mission.

    此前人造卫星从未任务主要阶段如此接近这个气体巨星

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  • A high precision method based on the phase congruency features was presented in this paper for automated evaluating sub-pixel band-to-band registration accuracy of satellite multispectral imagery.

    文章实现一种基于相位一致特征光谱图像亚像元波段配精度自动评价方法

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  • A high precision method based on the phase congruency features was presented in this paper for automated evaluating sub-pixel band-to-band registration accuracy of satellite multispectral imagery.

    文章实现一种基于相位一致特征光谱图像亚像元波段配精度自动评价方法

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