ANALYSIS OF INFORMATION ACQUISITION ABILITY FOR CHIRP SIGNAL

被引：0

作者：

Zhang, Jiawei ^{[1
]}

Wu, Jianwei ^{[1
]}

Xiao, Shuangying ^{[2
]}

Zhou, Zihan ^{[2
]}

Xu, Huaping ^{[2
]}

机构：

[1] Yanshan Univ, Sch Informat Sci & Engn, Qinhuangdao 066004, Hebei, Peoples R China

[2] Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China

来源：

IGARSS 2024-2024 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, IGARSS 2024 | 2024年

基金：

美国国家科学基金会;

关键词：

Chirp signal; information acquisition; time bandwidth product; mutual information; extended target; DESIGN;

D O I：

10.1109/IGARSS53475.2024.10642318

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

The time bandwidth product (TBP) of Chirp signal has experienced a sustainable growth over the past decades. However, whether to increase TBP can improve information acquisition ability of the interested targets needs to be analyzed. To this end, the relationship between information acquisition and TBP is derived for Chirp signal. Firstly, a quantitative metric for evaluating information acquisition capability is provided. Secondly, the analytical expressions of information acquisition and TBP are derived, under different target scattering models. A larger TBP indicates higher information acquisition ability with a point-like target, while there exists an optimal value of TBP for an extended target as information acquisition increases at first and then declines with the increase of TBP. Finally, numerical examples are employed to verify the theoretical analysis.

引用

页码：3997 / 4000

页数：4

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