一种面向低轨遥感星座的路由任务规划算法研究

doi:10.11959/j.issn.1000-0801.2022076

Abstract

Abstract:

In order to solve the problem of poor timeliness of data transmission in remote sensing constellation, the inter-satellite link network and a routing task planning algorithm suitable for inter-satellite network with intermittent burst characteristics was proposed.Driven by the results of remote sensing satellite imaging task planning, combined with the time-varying characteristics of satellite network topology, the algorithm improved the topology division method based on snapshot sequence to reduce the frequency of route switching and the cost of link switching.The routing between satellite and ground station was regarded as a part of the routing of LEO remote sensing constellation.While selecting the shortest routing path between satellite and the ground, the duration of satellite-ground link was maximized.The simulation results show that the algorithm can significantly improve the data transmission capability of the low-orbit remote sensing satellite constellation.

Key words: LEO satellite space network, remote sensing constellation, routing task planning algorithm

CLC Number:

TP393

Xing QI, Zhen LIU, Jiahui LIANG, Qiming ZHAO, Chang LIU. Research on a routing task planning algorithm for LEO remote sensing constellation[J]. Telecommunications Science, 2022, 38(4): 30-38.

Figures/Tables 7

序号	卫星ID	开始时间	结束时间	数据量/MB
1	xxy_0101	03:50:43	03:52:43	137 279
2	xxy_0102	15:50:18	15:53:02	188 057
3	xxy_0103	15:44:21	15:47:18	203 414
4	xxy_0104	15:38:31	15:41:30	204 634
5	xxy_0105	15:32:49	15:35:35	189 270
6	xxy_0106	15:27:22	15:29:32	149 602
7	xxy_0107	15:22:03	15:23:19	87 798
8	xxy_0108	没有时间窗口
9	xxy_0109	没有时间窗口
10	xxy_0110	没有时间窗口
11	xxy_0111	04:26:13	04:27:55	116 669
12	xxy_0112	04:19:56	04:22:26	172 644
13	xxy_0113	04:13:51	04:16:47	172 644
14	xxy_0114	04:07:54	04:10:59	212 665
15	xxy_0115	04:02:03	04:05:04	207 612
16	xxy_0116	03:56:19	03:59:01	186 771
17	xxy_0201	05:25:13	05:26:45	105 027
18	xxy_0202	17:24:38	17:27:27	194 135
19	xxy_0203	17:18:43	17:21:42	205 393
20	xxy_0204	17:12:55	17:15:52	202 075
21	xxy_0205	17:07:17	17:09:55	181 036
22	xxy_0206	17:01:52	17:03:50	134 998
23	xxy_0207	16:56:36	16:57:31	63 087
24	xxy_0208	没有时间窗口
25	xxy_0209	没有时间窗口
26	xxy_0210	没有时间窗口
27	xxy_0211	06:00:26	06:02:25	136 150
28	xxy_0212	05:54:13	05:56:53	183 365
29	xxy_0213	05:48:11	05:51:11	206 798
30	xxy_0214	05:42:16	05:45:21	212 782
31	xxy_0215	05:36:27	05:39:24	203 502
32	xxy_0216	05:30:44	05:33:19	177 156
33	xxy_0301	06:59:48	07:00:35	53 951
34	xxy_0302	18:58:59	19:01:52	198 765
35	xxy_0303	18:53:06	18:56:06	206 066
36	xxy_0304	18:47:21	18:50:13	198 074
37	xxy_0305	18:41:46	18:44:14	170 264
38	xxy_0306	18:36:24	18:38:07	117 087
39	xxy_0307	18:31:23	18:31:28	5 911
40	xxy_0308	没有时间窗口
41	xxy_0309	没有时间窗口
42	xxy_0310	07:41:16	07:42:14	65 508
43	xxy_0311	07:34:42	07:36:53	151 052
44	xxy_0312	07:28:32	07:31:19	191 754
45	xxy_0313	07:22:32	07:25:35	209 922
46	xxy_0314	07:16:38	07:19:43	211 790
47	xxy_0315	07:10:51	07:13:44	198 422
48	xxy_0316	07:05:10	07:07:35	165 648

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