Secondly, Aiming at classical mathematics model of Multi-machine System, state equation and transient energy function are putted forward in the center of angle.

We analyzed the geometric property of edge curve of formed milling cutter, deduced the curve's mathematics equation, got the center coordinate of disc blade, and designed the edge curve by CAD.

Based on the data of radar flight for test, the method applies radar equation to estimate the detection probability of gridding center.