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      <title>为什么通道合并是img.*conj(sens)? MRI多通道合并SNR最大化的数学证明</title>
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      <description>问题建模 信号模型 假设我们有N个接收线圈，在空间位置(x,y)处： 真实组织信号：$\rho(x,y)$（复数） 第i个线圈的敏感性：$C_i(x</description>
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