The observations of Kunming meteor radar and height distribution of meteor

Based on the meteor radar, one can study the radiant distribution and the time variant of meteors, investigate space debris and predict the passage time of meteor showers, and so on. By observation of the Kunming meteor radar, the observation data of meteor decay time and the ambipolar diffusion coefficient are consistent with the theories. By analyzing the 571632 meteors observed by Kunming meteor radar, the parameters of meteor are analyzed and the height distribution of meteors model has been constructed, the result predicted by this model agrees with observation data at different months. The work of the paper will be helpful to study distribution of meteor and passage time of meteor showers.