METHOD OF LOCATING SATELLITE COMMUNICATION EARTH STATION FROM RELAYED SIGNAL
	KISTANOV P A; MAKSIMOV V A; SMIRNOV P L; TSARIK O V
	2024-07-09
专利权人	SPECIAL TECHNOLOGICAL CENT LLC (SPEC-Non-standard)
申请日期	2024-07-09
专利号	RU2834416-C1
成果简介	NOVELTY - Invention relates to radio engineering, specifically to methods for determining the location (DM) of a radio-frequency source, and can be used for DM of satellite communication earth stations (ES). Additionally, a low-orbit spacecraft (LOS), a control station (CS) of LOS, and the earth station for determining the location (ESDL) is made comprising a two-channel coherent radio receiving device (RRD) with a unit for calculating coordinates and an antenna system of two antennae, one of which automatically tracks the direction to the LOS, and the other is oriented in the direction of the "main" spacecraft (SC), located on the geostationary orbit and providing relay of the ES signals along the main lobe of the beam pattern, on the basis of the descending line of SC signals in the ESDL, the ES signals are detected, demodulated, technical analysis is performed, the central frequency Fi and the spectrum width ΔFi are determined, based on the frequency plan of the SC, frequency parameters FBi and ΔFBi of the ES uplink are determined, the obtained values of FBi and ΔFBi is transmitted to the LOS CS, the functions of which include the prediction of the date and time of the LOS location in the electromagnetic accessibility zone of the ES, the ESDL and the CS, setting the LOS the time for switching on ton and switching off toff of the repeater located on its board, parameters of retransmitted signal Fi, ΔFi and Fbi, ΔFb£, time of transmitting messages to the CS on the current coordinates of the LOS (x, y, z, tn), n=1, 2, …, N, N is number of messages during flight over search area, N>3, well-timed orientation of the antenna of the ESDL to the space station is carried out based on the TLE-parameters of its orbit, the current frequency instability of the receiving channels of the RRD in the band ΔFi at time tn is eliminated, based on the coordinates of the SC and the LOS and the ES signals relayed by them at fixed time moments tn, N delays in receiving signals Δτ1,N are determined and further, using the difference-ranging method, the coordinates of the ES are found. USE - Radio engineering. ADVANTAGE - High accuracy of the DM of the ES signal due to increased spatially independent statistics of estimating signal delays Δτ1,N, N>3, and maintaining its operability in the absence of two auxiliary spacecraft (SC). 1 cl, 6 dwg
IPC 分类号	H04K-003/00
国家	俄罗斯
专业领域	信息技术
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/15891
专题	中国科学院新疆生态与地理研究所
作者单位	SPECIAL TECHNOLOGICAL CENT LLC (SPEC-Non-standard)
推荐引用方式 GB/T 7714	KISTANOV P A,MAKSIMOV V A,SMIRNOV P L,et al. METHOD OF LOCATING SATELLITE COMMUNICATION EARTH STATION FROM RELAYED SIGNAL. RU2834416-C1[P]. 2024.

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