[1] Jia Zhen, Li Jianqing,. Multi-target range and velocity measurementsof a digital phased array radar system [J]. Journal of Southeast University (English Edition), 2018, 34 (4): 459-465. [doi:10.3969/j.issn.1003-7985.2018.04.007]

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Multi-target range and velocity measurementsof a digital phased array radar system()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

34

Issue:

2018 4

Page:

459-465

Research Field:

Computer Science and Engineering

Publishing date:

2018-12-20

Info

Title:

Multi-target range and velocity measurementsof a digital phased array radar system

Author(s):

Jia Zhen¹;  Li Jianqing²

¹Jiangsu Automation Research Institute, Lianyungang 222061, China
²School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China

Keywords:

phased array;  radar echo;  pulse compression;  moving target

PACS:

TP391

DOI:

10.3969/j.issn.1003-7985.2018.04.007

Abstract:

As the core of a digital phased array radar system, a radar signal processing environment is created to measure multi-target range and velocity information. The radar echo signal is achieved by superposing target echo, noise, clutter and jamming signals linearly. Considering that these signals have many types, two typical combinations are selected to construct the multi-target echo signal and the simulated echo signal is used as the input of the signal processing environment. This environment mainly adopts pulse compression, moving target indication and detection technologies to process the echo signal. It is found that the frequency domain method is more desirable for the pulse compression effect than the time domain method, and multi-target range information can be measured from the moving target indication result after using a double delay canceller. A new moving target detecting method is proposed, which can present the positive and negative velocity accurately with the multi-target range and velocity measured simultaneously. Simulation results indicate that the potential targets are detected from the chaotic radar echo signals successfully, and their range and velocity can be figured out correctly in the built radar signal processing environment.

References:

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Memo

Memo:

Biographies: Jia Zhen(1987—), male, doctor, senior engineer; Li Jianqing(corresponding author), male, doctor, professor, ljq@seu.edu.cn.
Foundation items: The “13th Five-Year” Equipment Pre-Research Common Technology Fund of China(No.41411010202), the National Natural Science Foundation of China(No.61571113), the Natural Science Foundation of Jiangsu Province(No.BK20160697).
Citation: Jia Zhen, Li Jianqing.Multi-target range and velocity measurements of a digital phased array radar system[J].Journal of Southeast University(English Edition), 2018, 34(4):459-465.DOI:10.3969/j.issn.1003-7985.2018.04.007.

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