压缩感知中导频插入信道估计算法的正交匹配跟踪，贪婪迭代，-Insert channel estimation orthogonal matching tracking algorithm greedy iterative compressed sensing pilot,

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Iterative receiver techniques, multiple-input – multiple-output (MIMO) processing, and orthogonal frequency division multiplexing (OFDM) are amongst the key physical layer technologies when aiming at higher spectral efficiency for a wireless comm