Detection probability for six laser range-finders of the rotating rocket

To analyze factors that affect the detection probability of six laser range-finders of rotating rocket, taking a missile as the target, the detection model was established according to a detection mechanism. Based on the model, the detection probability was calculated via Monte Carlo method under different conditions. With the calculation results, the relationship of detection probability with the rolling rate and the missile velocity was illustrated in figures, when the laser emitting frequency was 10 kHz, 20 kHz, 30 kHz respectively under the condition that rocket met the front of missile as well as the condition that rocket met the rear of missile. The figures show that the detection probability increases as laser emitting frequency increases or the rolling rate increases, while it decreases as the missile velocity increases. Detection probability is higher when rocket meets the front of missile than that when rocket meets the rear of missile. In order to maintain a track of approaching Mach 2 targets, rotation rate should be more than 100 r/s.