Abstract
An electromagnetic signal enhancement algorithm based on SNR maximization is proposed in this paper. This algorithm uses a priori knowledge of the covariance matrix of noise in the mixed signal, recovers the required signal and maximizes the SNR by linear combination of multi-channel received electromagnetic signals. The algorithm is derived and simulated in this paper, the result shows that this signal enhancement algorithm based on SNR maximization can recover electromagnetic signal and cancel noise in the circumstance that signal and noise have overlapped spectrum, and the enhanced signal has maximal SNR, the algorithm has an obviously good performance and good application value.
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