Comparative study of sea clutter distribution and ship detectors’ performance for Sentinel-1 synthetic aperture radar image

杂乱 恒虚警率 合成孔径雷达 探测器 计算机科学 遥感 假警报 统计能力 目标检测 雷达 人工智能 模式识别(心理学) 地质学 电信 数学 统计
作者
Yongxu Li,Xudong Lai,Shouxin Zhang,Genwang Liu
出处
期刊:Journal of Applied Remote Sensing [SPIE]
卷期号:13 (04): 1-1
标识
DOI:10.1117/1.jrs.13.044506
摘要

The constant false alarm rate (CFAR) detector is a classical algorithm for ship detection with synthetic aperture radar (SAR). However, the algorithm is susceptible to the accuracy of sea clutter modeling and the desired probability of false alarm, thus reducing detection performance. Therefore, a goodness-of-fit test and a certain number of ship detection experiments and theoretical analysis of false alarms have been extensively practiced as prior knowledge. Compared to earlier SAR sensors, the newly launched Sentinel-1 has nearly uniform signal-to-noise ratio, and the distributed-target-ambiguity ratio may provide additional capabilities for ship detection. Owing to the complex interaction between SAR system and sea surface, the previous work may not be completely suitable for Sentinel-1. As its application is in the beginning, further research is needed. We evaluate the effectiveness of model fitting among five commonly used distributions, and the influences of incident angle, polarization, and sea state on modeling are analyzed. In addition, CFAR detectors constructed by these distributions carried out the ship detection experiments. Moreover, the false alarms that are inevitably caused during the ship detection are classified and statistically analyzed. These aforementioned works can provide an important reference for Sentinel-1 to implement large-scale, as well as long-term, ship detection activities and for further improvement.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
文献高手发布了新的文献求助30
1秒前
sbc发布了新的文献求助10
2秒前
小蘑菇应助绿泡泡采纳,获得10
5秒前
GXJ发布了新的文献求助10
6秒前
浪客完成签到 ,获得积分10
8秒前
共享精神应助zyyin采纳,获得10
11秒前
肖治民发布了新的文献求助10
13秒前
13秒前
02ZT完成签到,获得积分10
13秒前
13秒前
14秒前
GXJ完成签到,获得积分20
14秒前
16秒前
17秒前
冬柳发布了新的文献求助10
19秒前
21秒前
逆行的百合完成签到,获得积分10
21秒前
小饭完成签到 ,获得积分10
24秒前
27秒前
pzh完成签到 ,获得积分10
27秒前
27秒前
27秒前
自觉绿草完成签到,获得积分10
29秒前
斯文败类应助小刘采纳,获得10
30秒前
孙燕应助黑色土豆采纳,获得200
30秒前
Zhaoyuemeng完成签到 ,获得积分10
30秒前
肖治民完成签到,获得积分10
32秒前
33秒前
tt发布了新的文献求助10
33秒前
一直向前发布了新的文献求助10
33秒前
jay完成签到,获得积分10
34秒前
和谐的孱完成签到,获得积分10
35秒前
36秒前
36秒前
37秒前
前行者完成签到,获得积分10
38秒前
小马甲应助111111zx111采纳,获得10
38秒前
41秒前
46秒前
风趣问雁完成签到 ,获得积分10
47秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989797
求助须知:如何正确求助?哪些是违规求助? 3531914
关于积分的说明 11255516
捐赠科研通 3270597
什么是DOI,文献DOI怎么找? 1805008
邀请新用户注册赠送积分活动 882181
科研通“疑难数据库(出版商)”最低求助积分说明 809190