Title :
Sidelobe suppression algorithm for chaotic FM signal based on neural network
Author :
Tan, Qinyan ; Song, Yaoliang
Author_Institution :
Sch. of Electron. Eng. & Optoelectron. Technol., Nanjing Univ. of Sci. & Technol., Nanjing
Abstract :
The chaotic FM signal is used to improve the electronic counter-counter measure (ECCM) capabilities of radar. However, the sidelobe level of this signal after matching processing is very high, thus would greatly debase the radarpsilas performance. Based on the Radial Basis Function (RBF) network, a novel range sidelobe processing technique is proposed, in which the quantum-behaved particle swarm optimization (QPSO) algorithm is applied to realize the optimization computing. A multidimensional vector composed of RBF network parameters is regarded as a particle to evolve. Then, the feasible sampling space is searched for the global optima. The simulation results show that this algorithm has easier computation and more rapid convergence compared with traditional algorithms. This method can also successfully suppress the sidelobe with good numerical stability.
Keywords :
electronic countermeasures; frequency modulation; numerical stability; particle swarm optimisation; radar signal processing; radial basis function networks; chaotic FM signal; electronic counter-counter measure; numerical stability; quantum-behaved particle swarm optimization; radar; radial basis function network; range sidelobe processing technique; sidelobe suppression algorithm; Chaos; Computer networks; Electronic countermeasures; Multidimensional systems; Neural networks; Particle swarm optimization; Quantum computing; Radar measurements; Radial basis function networks; Signal processing;
Conference_Titel :
Signal Processing, 2008. ICSP 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2178-7
Electronic_ISBN :
978-1-4244-2179-4
DOI :
10.1109/ICOSP.2008.4697640
