The MIMO (Multiple Input Multiple Output) Radar can efficiently improve the radar performance by transmitting particularly designed orthogonal waveforms. In this paper, a hybrid algorithm is proposed with the combinat...
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ISBN:
(纸本)9781728137155
The MIMO (Multiple Input Multiple Output) Radar can efficiently improve the radar performance by transmitting particularly designed orthogonal waveforms. In this paper, a hybrid algorithm is proposed with the combination of Genetic algorithm and hamming scan algorithm to numerically optimize the polyphase orthogonal sequences. A cost function which includes the peak side-lobe level ratio(PSLR) of auto correlation and cross correlation function is used for sequence generation. The impact of Doppler ambiguity on the generated sequences is also analyzed. The simulation results show that the proposed algorithm gives better peak average autocorrelation and cross correlation values as compared to other methods.
A modified simulated annealing algorithm (MSAA) is proposed as combinatorial multivariable optimisation technique to design discrete frequency-coding (DFC) sequence sets with good auto- and cross-correlation propertie...
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A modified simulated annealing algorithm (MSAA) is proposed as combinatorial multivariable optimisation technique to design discrete frequency-coding (DFC) sequence sets with good auto- and cross-correlation properties. The proposed algorithm is a combination of simulated annealing and hamming scan algorithm. MSAA has global minimum estimation capability of simulated annealing and fast convergence rate of hamming scan algorithm. Some of the synthesised results are presented, the properties of the sequence sets are shown to be better than the other sequence sets known in the literature. Synthesised DFC sequence sets have properties far better than polyphase sequence sets. The synthesised DFC sequence sets are promising for practical application to netted radar/multiple radar systems.
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