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In order to improve the accuracy of short-range wireless ultraviolet distance measurement, based on the principle that the pulse response width of wireless ultraviolet communication system increases with the communication distance, the wireless ultraviolet communication pulse broadening ranging method was proposed. Based on Monte Carlo multiple scattering simulation model, the impulse response of wireless ultraviolet communication system after three scatterings in clear weather was studied, and the expression of impulse response was given. The relationship between the half peak and full width, 10% of the pulse width of the system’s impulse response and the communication distance under different elevations of transmitter and receiver are studied, then the formula of pulse broadening ranging was given and compared with the experimental results. The results show that the average ranging error of the half-peak full-width ranging formula is less than 2.8 m, and the average ranging error of the 10% pulse width ranging formula is less than 1.5 m when the transmitting and receiving elevation angle is less than or equal to 20° and the effective ranging is 0~50 m. [ABSTRACT FROM AUTHOR]

Ultraviolet(UV)Ad Hoc network can solve the problem of short transmission distance and small coverage in UV communication. A good performance routing algorithm can improve network performance. Based on the wireless ultraviolet communication channel transmission model, the single link node transceiver device’s processing of acquiring, pointing and tracking is introduced. AOMDV routing protocol is studied for the UV Ad Hoc network, and NS2 is used to compare it with the MAODV routing protocol. The simulation results show that the performance of AOMDV is better than that of MAODV, on condition that the number of mobile nodes is same and larger, the moving area of the node is smaller and fixed, and the maximum moving speed of the node is changed. [ABSTRACT FROM AUTHOR]