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	Responses to extreme drought in wintering waterbirds: a multi-species approach 期刊论文 OAI收割 FRONTIERS IN ZOOLOGY, 2025, 卷号: 22, 期号: 1, 页码: 3 作者: Wang, Chenxi; Xia, Shaoxia; Yu, Xiubo; Wen, Li \| 收藏 \| 浏览/下载：9/0 \| 提交时间：2025/03/18 Wintering waterbirds Extreme weather events Behavioral plasticity Satellite tracking data Home range
	Orbit improvement for Chang'E-5T lunar returning probe with GNSS technique 期刊论文 OAI收割 ADVANCES IN SPACE RESEARCH, 2015, 卷号: 56, 期号: 11, 页码: 2473-2482 作者: Fan, Min; Hu, XiaoGong; Dong, Guangliang; Huang, Yong; Cao, Jianfeng 收藏 \| 浏览/下载：70/0 \| 提交时间：2016/01/14 Chinese lunar exploration program Global navigation satellite system Weak signal acquisition and tracking performance Fusion processing of space- and ground-based data Accuracy of orbit determination and prediction
	Design and calibration of the solar irradiance monitor (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China 作者: Yang D.-J.; Gong C.-H.; Wang Y.-P.; Ye X.; Fang W. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 The solar irradiance monitor (SIM) with the design accuracy of 5 used to monitor the secular changes of the total solar irradiance on FY-3 satellite takes the sun-scanning measurement method on-orbit. Compared to the sun-tracking measurement method this method simplifies the structure and cuts the cost but the measuring accuracy is affected by the sun-synchronous orbit sunlight incidence angle and the installing angle of the SIM in the satellite. Through the ground calibration experiment studies on the affection of different sunlight incidence angles to the measurement accuracy. First by the satellite tool kit (STK) simulation software simulates the orbital parameters of the sun-synchronous satellite and calculates the Sun ascension and declination at any time. By the orbit coordinate transformation matrix gets the components of the Sun vectors to the axes of the satellite and base on the components designs the field of view and the installing angles of the SIM. Then designs and completes the calibration experiment to calibrate the affection of the incidence angles. Selecting 11 different angles between the sunlight and the satellite X-axis measures the total solar irradiance by the SIM at each angle and compares to the irradiances of the SIAR reference radiometers and gets the coefficient curves of the three channels of the SIM. Finally by the quadratic fitting gets the correction equations on the incidence angles: R 1=5.7110-52 -2.45310 -3+1.0302 R2=2.8410-5-1. 96510-3+1.0314 and R3 =1.7210 -52-4.18410-4+0.9946. The equations will aimprove the on-orbit measurement accuracy of the solar irradiance and are very important to the on-orbit data processing after the satellite launched. 2011 SPIE.
	Research of error correction of LEO satellite orbit prediction for vehicle-borne tracking and position device (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China 作者: Wang J.-J.; Guo L.-H. 收藏 \| 浏览/下载：30/0 \| 提交时间：2013/03/25 Vehicle-borne tracking and position device is used to track LEO satellite. Because of the absence of the target which might be caused by cloud or zenith blind zone the forecasting data will be used to acquire the target. While orbit prediction has serious errors the target is always missed. Meanwhile in its application to the vehicle-borne tracking and position device due to the base of instability in the tracking process it will result in significant difference between predicting data and tracking data so the target will be not tracked rapidly. We applied tracking data to predict satellite orbits by improving Laplace method and then corrected the error between Predicted data and actual measured data by interpolation method of Lagrange which improves the accuracy of prediction values. The testing data shows the accuracy of predicted data ranging from 3' to 10" for both azimuth and elevation when extrapolated satellite orbit to 7 seconds time. 2010 IEEE.
	White-napped canes migratory roads tracking and surface condition change monitoring by satellite and weather data 会议论文 OAI收割 Igarss 2004: Ieee International Geoscience and Remote Sensing Symposium Proceedings, Vols 1-7: Science for Society: Exploring and Managing a Changing Planet, New York Ma, JW; Dai, Q; Chen, X; Bu, H; Guan, HL 收藏 \| 浏览/下载：16/0 \| 提交时间：2014/12/07 migratory birds roads satellite tracking data satellite imagery temperature data canes white-napped cranes