Waveform Design of Combined Pulse for Carrier Free UWB Fuze Based on Particle Swarm Optimization

A waveform design method based on particle swarm optimization (PSO) is proposed to meet the requirements of Gaussian pulse combination waveform design for Carrier free Ultra Wide-band (UWB) fuze. On the basis of realized the power spectrum design, the problem of combined pulse waveform design is analyzed, and the basic design method is given. Under the condition of Gaussian pulse, the derivative of power spectrum fitting error relative to parameter vector is further derived, and the gradient of target function is given. Thus, the basic particle swarm optimization algorithm is further improved by using quasi Newton method, it makes the fitted power spectrum and the design power spectrum achieve good similarity. The effectiveness of the proposed method is verified by simulation.