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To resolve local convergent problem of the standard discrete particle swarm optimization algorithm, a novel quantum particle swarm optimization (QPSO) algorithm that use new move equation is proposed. The proposed algorithm is based on quantum velocity and quantum evolution mechanism with particle evolution principle. The quantum particle swarm optimization(More)
In this paper, an automatic radar waveform recognition system in a high noise environment is proposed. Signal waveform recognition techniques are widely applied in the field of cognitive radio, spectrum management and radar applications, etc. We devise a system to classify the modulating signals widely used in low probability of intercept (LPI) radar(More)
FIR and IIR digital filters design involve multi-parameter optimization, on which some existing intelligent algorithms don’t work efficiently. This paper focuses on employing the proposed differential cultural (DC) algorithm to design FIR and IIR digital filters. DC is a global stochastic searching technique that can find out the global optima of(More)
A two dimensional (2-D) DOA estimation method is proposed for non-circular sources in this paper. According to the non-circularity of the sources, we utilize both the receiving signal and its conjugate to estimate the DOA angles aiming at expanding the array virtually, which can improve the estimation properties at low signal to noise ratio (SNR) and small(More)
A virtual multi-element uniform linear array is constructed through fractional lower order covariance matrix of the minimum redundant array in the presence of impulsive noise. Based on virtual multi-element uniform linear array and reconstructed fractional lower order covariance matrix, a novel maximum likelihood (ML) algorithm is proposed. The proposed(More)
The blind separation of audio signal is an important application of blind signal separation technology. The traditional separation algorithm based on neural network is analyzed first in this article. The shortage of it is easy to fall into local minimum, and it causes the limitation of convergence slowly and separation results inaccurate. Then, a separation(More)
Qian Sun 1,†, Ming Diao 1,*, Ya Zhang 2,† and Yibing Li 1 1 College of Information and Communication Engineering, Harbin Engineering University, Harbin, 150001, China; qsun@hrbeu.edu.cn (Q.S.); liyibing0920@126.com (Y.L.) 2 School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin, 150001, China; yzhang@hrbeu.edu.cn *(More)
MIMO radar can provide enhanced spatial resolution and achieve better target detection performance. Hence the parameter identifiability of the system can be significantly improved. In this paper, the issue of direction of arrival (DOA) estimation in multiple-input multiple-output (MIMO) radar is discussed, and several algorithms for DOA tracking based on(More)