SNR sensitivity of matched and mismatched radar compression filters

In this paper a comparative analysis of sidelobe levels at matched and mismatched filters depending on input signal-to-noise ratio is presented. The analysis was performed for various types of sequences. The sidelobe level of the mismatched filter output is lower than the sidelobe level of the matched filter output up to some threshold level of the input signal SNR value. Below that level, the sidelobe level is determined by the noise level and the difference between filters elapses.