基于Hankel矩陣分解的天波超視距雷達(dá)機(jī)動(dòng)目標(biāo)檢測(cè)算法

doi:10.11999/JEIT170511

基于Hankel矩陣分解的天波超視距雷達(dá)機(jī)動(dòng)目標(biāo)檢測(cè)算法

doi: 10.11999/JEIT170511

基金項(xiàng)目:

國(guó)家自然科學(xué)基金(61671137, 61371184, 61301262)，國(guó)家自然科學(xué)基金(重點(diǎn)項(xiàng)目)(61731006)，四川省科技廳項(xiàng)目(2017GZ0344)

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- 被引次數(shù): 0
出版歷程
- 收稿日期: 2017-05-26
- 修回日期: 2017-10-26
- 刊出日期: 2018-03-19

Maneuvering Target Detection Algorithm Based on Hankel Matrix Decomposition in Over-The-Horizon Radar (OTHR)

Funds:

The National Natural Science Foundation of China (61671137, 61371184, 61301262), The National Natural Science Foundation of China (Key Program)(61731006), The Sichuan Provincial Department of Science and Technology Project (2017GZ0344)

摘要

摘要: 機(jī)動(dòng)目標(biāo)檢測(cè)是天波超視距雷達(dá)的研究重點(diǎn)之一。目前已有的算法在高信噪比條件時(shí)對(duì)單個(gè)機(jī)動(dòng)目標(biāo)的檢測(cè)效果較好，但在低信噪比時(shí)對(duì)多個(gè)機(jī)動(dòng)目標(biāo)的檢測(cè)性能有待提高。該文提出一種基于Hankel矩陣分解的機(jī)動(dòng)目標(biāo)檢測(cè)算法，該算法將機(jī)動(dòng)目標(biāo)信號(hào)構(gòu)造為Hankel矩陣的形式，通過矩陣分解將信號(hào)時(shí)頻估計(jì)轉(zhuǎn)化為線性主成分分析的凸優(yōu)化問題，從而實(shí)現(xiàn)勻速與機(jī)動(dòng)目標(biāo)的分離以及多個(gè)目標(biāo)的同時(shí)估計(jì)。仿真結(jié)果證明了該算法具有估計(jì)精度高，信噪比條件低，可以同時(shí)多目標(biāo)檢測(cè)等優(yōu)點(diǎn)。
- 天波超視距雷達(dá) /
- Hankel矩陣分解 /
- 機(jī)動(dòng)目標(biāo)檢測(cè)
Abstract: Maneuvering target detection is one of the focuses in skywave Over-The-Horizon Radar (OTHR). The performance of existing algorithms is good for single maneuvering target in the condition of high SNR. However, the performance for multiple maneuvering targets in low SNR needs to be improved. In this paper, a new maneuvering target detection algorithm is proposed based on Hankel matrix decomposition. The maneuvering target signal is constructed in the form of Hankel matrix. Then the time-frequency estimation of maneuvering target signal is transformed into a convex optimization problem based on linear Principal Component Analysis (PCA) by matrix decomposition, so as to realize the separation of uniform and maneuvering targets, and the simultaneous estimation of multiple targets. The simulation results show that the proposed algorithm has the advantages of high estimation accuracy, low SNR and multiple target detection.
- Over-The-Horizon Radar (OTHR) /
- Hankel matrix decomposition /
- Maneuvering target detection

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