The Husimi function and a successive measurement of the position and the   momentum
  In this paper, we consider an interpretation of the Husimi function as the probability distribution of a successive measurement, which is clearly separated into measurements of the position and the momentum. We also show this successive measurement can be easily realized in the situation close to the experiment, and this measurement corresponds to one of Aharanov's weak measurement. 
T. Shito
quant-ph