A novel method to approach the UWB’s emission mask

Aiming at the shortcoming which the pulse wave can not approach the UWB emission mask curve instituted by FCC, the method using Gaussian pulse wave combination sub-section approach is proposed. Firstly, the propriety pulse forming factor is selected to approach the emission mask and it can meet the property of each subsection. Then, the better combination pulse string of approaching emission mask property can be obtained by optimizing combination of each subsection. Finally, the simulation results indicate that this method is better than the means of random combination and LSE combination.