来源:《中国科学报》 | 2021-02-02 15:07:24 |
华南农业大学工程学院教授周志艳团队提出了一种无人机低空遥感获取作物长势信息的快速采集及数据处理方法,并给出了详细的传感器校准流程和应用案例。相关研究近日发表于《清洁生产杂志》。
在作物长势信息的快速获取和解析处理中,传统的航天、航空遥感技术存在气象影响因子多、周期长、分辨率不够高等缺点,特别是在广东等南方地区,适合遥感的无云气象条件的时间窗口更少。采用无人机进行作物长势信息的近地遥感获取,可弥补现有航天、航空遥感技术缺陷。但无人机低空遥感单张影像的覆盖面积难以达到传统航空航天遥感覆盖面积。
遥感信息的获取和解析处理具有较高的实时性才能满足实际生产要求。周志艳团队研制的遥感传感器可以提供与专业级高光谱仪器、多光谱相机相近的反射率和辐射照度测量精度。
据了解,在水稻长势信息解析中,该研究信息解析数据量可达534.6公顷/分钟,相比传统方法,长势专题图的生成速率和变量施肥处方图的决策效率实现了大幅度提升。(朱汉斌)
2022-04-22 10:46:41
2022-04-22 10:40:29
2022-04-22 10:35:25
2022-04-22 10:32:50
2022-04-22 10:27:44
2022-04-24 09:48:22
2022-04-24 09:48:16
2022-04-24 09:48:13
2022-04-24 09:48:11
2022-04-24 09:48:05
2022-04-24 09:47:31
2022-04-24 09:47:29
2022-04-24 09:47:28
2022-04-24 09:47:18
2022-04-24 09:46:55
2022-04-24 09:46:44
2022-04-24 09:46:22
2022-04-24 09:46:13
2022-04-24 09:46:09
2022-04-24 09:46:04
2022-04-24 09:46:00
2022-04-24 09:45:57
2022-04-24 09:45:51
2022-04-24 09:45:47
2022-04-24 09:45:30
2022-04-24 09:45:04
2022-04-24 09:44:22
2022-04-24 09:44:22
2022-04-24 09:44:19
2022-04-24 09:44:04
2022-04-24 09:43:55
2022-04-24 09:43:32
2022-04-24 09:43:20
2022-04-24 09:43:03
2022-04-24 09:42:58
2022-04-24 09:42:54
2022-04-24 09:42:47
2022-04-24 09:42:43
2022-04-24 09:42:40
2022-04-24 09:42:37
2022-04-24 09:42:36
2022-04-24 09:42:24
2022-04-24 09:42:13
2022-04-24 09:41:59
2022-04-24 09:41:57
2022-04-24 09:41:51
2022-04-24 09:41:45
2022-04-24 09:41:44
2022-04-24 09:41:33
2022-04-24 09:41:23
2022-04-24 09:41:16
2022-04-24 09:41:15
2022-04-24 09:41:03
2022-04-24 09:40:58
2022-04-24 09:40:55
2022-04-24 09:40:50
2022-04-24 09:40:25
2022-04-24 09:40:18
2022-04-24 09:39:54
2022-04-24 09:39:46
2022-04-24 09:39:44
2022-04-24 09:39:26
2022-04-24 09:39:10
2022-04-24 09:38:59
2022-04-24 09:38:57
2022-04-24 09:38:39
2022-04-24 09:38:27
2022-04-24 09:38:21
2022-04-24 09:38:13
2022-04-24 09:38:04
2022-04-24 09:38:03
2022-04-24 09:37:49
2022-04-24 09:37:38
2022-04-24 09:37:37
2022-04-24 09:37:30
2022-04-24 09:37:25
2022-04-24 09:37:13
2022-04-24 09:37:08
2022-04-24 09:37:06
2022-04-24 09:36:59
2022-04-24 09:36:45
2022-04-24 09:36:39
2022-04-24 09:36:21
2022-04-24 09:36:06
2022-04-24 09:36:06
2022-04-24 09:35:45
2022-04-24 09:35:30
2022-04-24 09:35:07
2022-04-24 09:34:58
2022-04-24 09:34:53
2022-04-24 09:34:52
2022-04-24 09:34:20
2022-04-24 09:34:14
2022-04-24 09:34:11
2022-04-24 09:34:01
2022-04-24 09:33:41
2022-04-24 09:33:12
2022-04-24 09:33:05
2022-04-24 09:33:00
2022-04-24 09:32:55
2022-04-24 09:32:28
2022-04-24 09:32:07
2022-04-24 09:32:05
2022-04-24 09:32:01
2022-04-24 09:32:00