Analysis of guidance precision due to photodetector index

The characteristic of impulse force control and the principle of body pursuit guidance law of simple guided projectiles were introduced, and the miss distance influenced by the minimum detecting range of photo-detector was analyzed. The models of the photo-detector and impulse force were established, according to the simulation of six degree trajectory model, the hit precision influenced by the non-sensitive area was proposed. The result shows that reducing the minimum detecting range and optimizing the non-sensitive area of photo-detector can improve the hit precision greatly.