Sparse Representation Based Range-Doppler Processing for Integrated OFDM Radar-Communication Networks
Date
2017-04-20
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Abstract
In an integrated radar-communication network, multiuser access techniques with minimal performance degradation and without range-Doppler ambiguities are required, especially in a dense user environment. In this paper, a multiuser access scheme with random subcarrier allocation mechanism is proposed for orthogonal frequency division multiplexing (OFDM) based integrated radar-communication networks. The expression of modulation Symbol-Domain method combined with sparse representation (SR) for range-Doppler estimation is introduced and a parallel reconstruction algorithm is employed. The radar target detection performance is improved with less spectrum occupation. Additionally, a Doppler frequency detector is exploited to decrease the computational complexity. Numerical simulations show that the proposed method outperforms the traditional modulation Symbol-Domain method under ideal and realistic nonideal scenarios.
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Bo Kong, Yuhao Wang, Henry Leung, Xiaohua Deng, Huilin Zhou, and Fuhui Zhou, “Sparse Representation Based Range-Doppler Processing for Integrated OFDM Radar-Communication Networks,” International Journal of Antennas and Propagation, vol. 2017, Article ID 6528956, 12 pages, 2017. doi:10.1155/2017/6528956