Robust transmitter-receiver design for extended target in signal-dependent interference

Robust transmitter-receiver design for extended target in signal-dependent interference
复制标题

稳健的发射机-接收机设计,可在信号相关干扰中扩展目标

DOI:
10.1016/j.sigpro.2018.01.007
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发表时间:
2018-06
期刊:
影响因子:
4.4
通讯作者:
Gui Guan
Gui Guan
中科院分区:
工程技术2区
文献类型:
--
作者:
Cui Guolong;Fu Yue;Yu Xianxiang;Li Jian;Gui Guan

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本文主要研究了稳健的收发机设计,以提高嵌入在依赖于信号的干扰中的扩展目标的检测能力。具体来说,我们允许干扰和目标脉冲响应的不确定性。在恒模约束下,提出了一种迭代算法来逐步改善最坏情况下的信干噪比。每次迭代涉及两个最大最小问题,这可以有效地解决广义特征值分解和Dinkelbach的程序,分别获得优化的接收滤波器向量和单模发送序列。所提出的方法的有效性,证实了数值优化的信干噪比。我们还强调了改善的最坏情况下的SINR相比,标称设计没有鲁棒性的考虑。
This paper focuses on the robust transmitter–receiver design to improve the detectability of an extended target embedded in signal-dependent interference. Specifically, we allow uncertainties for both the interference and target impulse responses. An iterative algorithm is proposed to sequentially improve the worst-case Signal-to-Interference-plus-Noise Ratio (SINR) under the constant modulus constraint. Each iteration involves two max-min problems, which can be efficiently solved by generalized eigenvalue decomposition and the Dinkelbach’s procedure, respectively, to obtain the optimized receive filter vector and unimodular transmit sequence. The effectiveness of the proposed method is confirmed numerically in terms of the optimized SINR. We also highlight the improvements of the worst-case SINR compared to nominal designs without robustness considerations.
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