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一种基于低频机械振动激励的磁声电成像系统

成果领域:

推广方式:

成果归属企业: 深圳大学

成果鉴定时间:

成果介绍

本发明公开了一种基于确定和不确定集约束的波束形成方法及系统，方法包括：获取天线阵列中阵元接收到的信号，对阵元接收到的信号进行加权求和得到波束形成的输出；根据波束形成过程的若干个样本进行阵列协方差矩阵估计，根据估计后的阵列协方差矩阵的目标函数进行建模，获取建模后的不确定集约束条件；根据伯恩型不等式将不确定集约束转化成确定集约束；根据半定松驰算法将目标函数转化为半定规划函数；根据凸优化算法对半定规划函数进行求解，输出求解后的波束形成。本发明将随机过程的概率约束条件转化为确定性约束条件，转化半定规划问题后进行目标函数的优化，克服了现有方法阵列协方差矩阵存在误差的严重的缺陷，提高了系统的鲁棒性。

成果应用案例介绍

方法过程>形成方法>形成方法

联系方式

电话/微信: 13822630888

相关成果

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[ BEHAVIOR ] Run Closure @app_init [ RunTime:0.000012s ]
[ CACHE ] INIT File
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[ BEHAVIOR ] Run \addons\fastflow\Fastflow @app_init [ RunTime:0.000024s ]
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[ BEHAVIOR ] Run \addons\treaty\Treaty @app_init [ RunTime:0.000028s ]
[ BEHAVIOR ] Run \addons\upyun\Upyun @app_init [ RunTime:0.000015s ]
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[ BEHAVIOR ] Run app\common\behavior\Common @app_init [ RunTime:0.000232s ]
[ LANG ] /www/wwwroot/open.juabc.com/thinkphp/lang/zh-cn.php
[ BEHAVIOR ] Run app\common\behavior\Common @app_dispatch [ RunTime:0.000011s ]
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[ DB ] INIT mysql
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