What is MF (matched filter)?

The matched filter (MF) strategy is an ideal technique to detect accessibility of spectrum since the MF can maximize the SNR regardless of whether there is additive white Gaussian noise. Matched filters are generally utilized in radar, in which a realized signal is conveyed, and the reflected signal is analyzed for normal components of the out-going signal. Matched filtering is a demodulation strategy with linear time invariant filters to maximize SNR.