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2003-2022 全部
为您找到包含“radar sensor network”的内容共2

MAO Cheng-chen,ZHU Fang-Qi,LIU Huai-Yuan,LIANG Jing

In this paper, we reconstruct signals in heterogeneous sensor network (HRSN) with distributed compressive sensing (DCS). Combining different types of measurement matrices and different numbers of measurements, we investigate three different scenarios in which HRSN is used to acquiring signals for the first time. In the first scenario, there are two different types of measurement matrices. One is Gaussian measurement and the other is Fourier measurement, and each sensor applies the same numbers of measurements. In the second scenario, all sensors use the same type of measurement matrices but the number of measurements are different each other. The third scenario combines different types of measurement matrix and distinct numbers of measurements. Our simulation results show that in Scenario I, when the common sparsity is considerable, the DCS scheme can reduce the number of measurements. In Scenario II, the reconstruction situation becomes better with the increase of the number of measurements. In both Scenario I and III, joint decoding that use different types of measurement matrices performs better than that of all-Gaussian measurement matrices, but it performs worse than that of all-Fourier measurement matrices. Therefore, DSC is a good compromise between reconstruction percentage and the number of measurements in HRSN.

2015-12-02

Doctoral Fund of Ministry of Education of China (20110185120003

Department of Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731 ,Department of Electrical Engineering, University of Electronic Science and Technology of China,Department of Electrical Engineering, University of Electronic Science and Technology of China,Department of Electrical Engineering, University of Electronic Science and Technology of China

#Electrics, Communication and Autocontrol Technology#

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季晨荷,宋耀良

2012-03-21

多部雷达信号间的共信道干扰是目前雷达传感网等面临的电磁兼容问题。适合于窄带雷达运用的传统捷变频与编码分集等方法无法有效解决高分辨宽带雷达共信道干扰问题。本文提出了一种波形与时间双分集的复合设计方法,通过多元码脉冲位置编码、伪随机序列阵脉冲压缩和脉冲积累的复合体制,为较好解决宽带雷达间的共信道干扰提供了一种解决途径。仿真结果表明在共信道信干比大于-30dB的前提下,所提出的设计波形具有明显的干扰抑制能力,计算结果验证了该设计的可行性与高效性。

教育部博士点基金(200802880014

国家自然科学基金(61071145

南京理工大学电子工程与光电技术学院,南京 210094,南京理工大学电子工程与光电技术学院,南京市 210094

#电子、通信与自动控制技术#

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