Sound pressure reversal mirror and vector reversal mirror are introduced, used time-reversal mirror (TRM) characteristic as basic, analyzed of its environmental tolerance for single sensor TRM passive positioning technology. The results show that variance of surface sound speeds can affect the focusing effect of TRM, but it affects the effect of sound pressure reversal mirror and vector reversal mirror less as the same as the effect in the horizontal direction and depth direction. Processing bands affect the focusing effect of TRM under the mismatching circumstance, and robustness for surface sound speed is lower at high frequency bands, while it is strong at low frequency bands.