对地静止轨道卫星网络间的频率干扰分析计算问题

doi:10.11959/j.issn.2096-8930.2021007

Abstract

Abstract:

The status of the submission and coordination of the global geostationary-orbit (GSO) satellite networks, GSO satellites in orbit were reviewed.The international rules of interference analysis and calculation between GSO satellite networks, two calculation methods of judging whether the coordination was needed coordination arc and ΔT/T, the calculation method of C/I and the access of the input parameters under diff erent scenarios were studied.The softwares of Visualyse GSO and ITU GIBC were introduced.The interference using the Visualyse GSO software between GSO satellite networks with different orbital separations was analyzed.It provides a reference for satellite operators to analyze and calculate the interference between GSO satellite networks and ensure the practical availability of satellite frequencies.

Key words: geostationary-orbit, satellite network, interference analysis

CLC Number:

TN927

Chang LIU, Wenkang WEI, Wei LI. Frequency Interference Analysis and Calculation of Geostationary-Orbit Satellite Network[J]. Space-Integrated-Ground Information Networks, 2021, 2(1): 52-59.

Figures/Tables 19

References 12

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[6]	International Telecommunication Union. Procedure for determining if coordination is required between geostationarysatellite networks sharing the same frequency bands:ITU-R S.738[S]. 1992.
[7]	International Telecommunication Union. Relationship of technical coordination methods within the fi xed-satellite service:ITU-R S.737[S]. 1992.
[8]	International Telecommunication Union. Additional methods for determining if detailed coordination is necessary between geostationary-satellite networks in the fixed-satellite service sharing the same frequency bands:ITU-R S.739[S]. 1992.
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年份	GSO卫星网络资料申报数量/份
2020	199
2019	382
2018	338
2017	358
2016	464
2015	397

卫星网络名称	轨位	频段	需协调国家数量/个	需协调卫星网络资料数量/份	需协调轨位数量/个
LUX-G10-108.2E	108.2 °E	Ku	48	2 019	559
LUX-G10-108.2E	108.2 °E	Ka	56	2 058	566
LUX-G14-7	23.5 °E	Ku	103	2 259	591
LUX-G14-7	23.5 °E	Ka	69	1 998	562
LUX-G12-45	87 °W	Ku	47	1 581	495
LUX-G12-45	87 °W	Ka	66	1 685	507

序号	频段	业务	轨位间隔
	3 400～4 200 MHz
1	5 725～5 850 MHz（1区）	FSS与FSS间	±7°
	5 850～6 725 MHz
	7 025～7 075 MHz
	10.95～11.2 GHz
	11.45～11.7 GHz
	11.7～12.2 GHz（2区）
2	12.2～12.5 GHz（3区）	非规划FSS/BSS与非规划FSS/BSS间	±6°
	12.5～12.74 GHz（1区和3区）
	12.7～12.75 GHz（2区）
	13.75～14.8 GHz
3	14.5～14.8 GHz	非规划FSS/SRS与非规划FSS/SRS间	±6°
4	13.4～13.65 GHz（1区）	FSS/SRS与FSS/SRS间	±6°
	17.7～19.7 GHz（2区和3区）
5	17.3～19.7 GHz（1区）	FSS与FSS间	±8°
	27.5～29.5 GHz
6*	19.7～20.2 GHz	FSS/MSS与FSS/MSS间	±8°
	29.5～30 GHz
7	17.3～17.7 GHz（1区和2区）	FSS与BSS间或BSS与FSS间	±8°
8	17.7～17.8 GHz	FSS与BSS间或BSS与FSS间	±8°
9	18.0～18.3 GHz（2区）	FSS/卫星气象业务与FSS/卫星气象业务间	±8°
	18.1～18.4 GHz（1区和3区）
10	17.3 GHz以上（序号5、6、9规定的频段除外）	FSS与FSS间	±8°
11	21.4～22 GHz（1区和3区）	BSS与BSS间	±12°
12	17.3 GHz以上（序号7、8、11规定的频段除外）	非规划FSS/BSS与非规划FSS/BSS（FSS与FSS间情况除外）间	±16°
注：*在19.7～20.2 GHz和29.5～30 GHz频段，FSS/MSS与FSS/MSS间的协调弧是WRC-19新修改内容

	干扰载波	TV/FM或其他	数字系统	模拟系统（非TV/FM）
有用载波
TV/FM		C/N+14（dB）
数字系统		如果 BW_w≤BW_eqi，那么C/N+5.5+3.5log(BW_w)（dB）	C/N+12.2（dB）
数字系统		如果 BW_w＞BW_eqi，那么C/N+12.2（dB）	C/N+12.2（dB）
模拟系统（非TV/FM）		11.4+2log( BW_w)（dB）	C/N+12.2（dB）
其他		11.4+2log( BW_w)（dB）	C/N+14（dB）

干扰/被干扰链路	参数	数据项	备注
被干扰链路	地球站发射功率	附录4第C.8.c.1项	最小发射功率
被干扰链路	地球站发射天线增益	附录4第C.10.d.3项	最大增益
被干扰链路	卫星接收天线增益	附录4第B.3.a.1项	最大增益
被干扰链路	接收系统噪声温度	附录4第C.5.a项	—
干扰链路	地球站发射功率	附录4第C.8.a.1/C.8.b.1项	最大发射功率
干扰链路	地球站发射天线增益	附录4第C.10.d.5.a.1项	地球站天线方向图
干扰链路	卫星接收天线增益	GIMS数据库天线方向图	卫星天线方向图

Frequency Interference Analysis and Calculation of Geostationary-Orbit Satellite Network

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