| 引用本文: | 董苏惠,高翔,韩锐,等.地球静止轨道卫星系统兼容性多维度分析方法.[J].国防科技大学学报,2022,44(1):77-84.[点击复制] |
| DONG Suhui,GAO Xiang,HAN Rui,et al.Compatibility multi-dimensional analysis method for geostationary satellite orbit systems[J].Journal of National University of Defense Technology,2022,44(1):77-84[点击复制] |
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| 地球静止轨道卫星系统兼容性多维度分析方法 |
| 董苏惠1,2,高翔1,韩锐3,姚秀娟1,闫毅1 |
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(1. 中国科学院国家空间科学中心 复杂航天系统电子信息技术重点实验室, 北京 100190;2. 中国科学院大学, 北京 100049;3. 国家无线电监测中心, 北京 100037)
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| 摘要: |
| 针对地球静止轨道(Geostationary Satellite Orbit, GSO)卫星系统间的兼容性分析,设计了单波束和多波束GSO卫星系统间的上行及下行干扰场景,并在卫星的轨位、系统链路可用度及干扰系统地球站选址等多维度对GSO卫星系统间的干扰进行了评估,提出了不同轨位间隔条件下满足国际电信联盟干扰协调限值的干扰系统地球站最近选址的建议,细化了各维度研究上的颗粒度,在不同维度间进行横向对比,分析了GSO卫星系统在不同维度下的干扰变化特性曲线和各维度对干扰分析结果的影响程度。在系统链路可用度一定的条件下,两个卫星系统的轨位间隔>2°时,干扰数值变化缓慢；轨位间隔≤2°时,干扰数值变化较快；轨位间隔≤0.1°时,干扰数值急剧上升。以国际电信联盟实际登记的CHNSAT-81.5和INSAT-KA82.5E卫星的网络资料为例,将计算得到的GSO系统波束间的干扰噪声比、载波干扰比与Visualyse软件结果进行验证对比,结果误差保持在0.7 dB范围内,证明该方法具有有效的评估性能。 |
| 关键词: 地球静止轨道卫星系统 兼容性分析 多维度干扰评估 地球站选址 干扰规避 |
| DOI：10.11887/j.cn.202201012 |
| 投稿日期：2020-07-17 |
| 基金项目:中国科学院空间科学战略性先导科技专项资助项目 (XDA15060100) |
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| Compatibility multi-dimensional analysis method for geostationary satellite orbit systems |
| DONG Suhui1,2, GAO Xiang1, HAN Rui3, YAO Xiujuan1, YAN Yi1 |
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(1. Key Laboratory of Electronics and Information Technology for Complex Space Systems, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. The State Radio Monitoring Center, Beijing 100037, China)
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| Abstract: |
| Aiming at the compatibility analysis between GSO (geostationary satellite orbit) satellite systems, uplink and downlink interference scenarios were designed between single-beam and multi-beam GSO satellite systems, and GSO satellite systems interference was evaluated on multiple dimensions, such as satellite orbital position, system link availability, and interference system′s earth stations location. Recommendations were proposed on the nearest location of interference system′s earth stations at different orbital intervals, which met International Telecommunication Union limit. The granularity of each dimension was refined. Different dimensions were compared horizontally, and interference variation characteristic curves and the influence level of each dimension were analyzed. When link availability was fixed, the interference value changed slowly with the orbital interval at >2°, the interference value changed rapidly with the interval at ≤2°, especially when the interval was at≤0.1°, the interference value rose sharply. Taking network data of the CHNSAT-81.5 and INSAT-KA82.5E satellites registered by the International Telecommunication Union as examples, the interference-to-noise ratio and the carrier-to-interference ratio were compared with Visualyse, the result error was kept in the range of 0.7 dB with an effective evaluation performance. |
| Keywords: geostationary satellite orbit system compatibility analysis multiple dimensions interference assessment earth station location interference avoidance |
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