Discrete Frequency Code Waveform Based on MicPSO Cooperated with Grefenstette Coded
Zeng Xiang-neng① Zhang Yong-shun① Tian Bo① Zhao Guo-qing② Lei Teng①
①Missile Institute of Air Force Engineering University, Sanyuan 713800, China ②School of Electronic Engineering, Xi’dian University, Xi’an 710071, China
Abstract：With the analysis of the ambiguity function for Discrete Frequency Code Waveform (DFCW) signals, the optimized model for DFCW design is established and the Micro swarm Particle Swarm Optimization (MicPSO) algorithm is proposed to design orthogonal discrete frequency-coding waveforms. As an arrangement issue, the DFCW design is optimized by using Grefenstette coding as MicPSO particle code. The simulated results show that, the DFCW’s Auto-correlation Sidelobe Peak (ASP) and Doppler tolerance are mainly determined by the length of coded signal, and the cross correlation properties is greatly improved based on the optimization method described in this paper. Compared with existing methods, the proposed method can save processing time and obtain better optimization results.
2011, Vol. 33 
