Abstract
Nowadays, the fast development of the digital circuits results in a more and more high digital level of radar system. Especially, the development of the solid-state active module, the high-speed multi-digital A/D convertor, the direct digital synthesizer (DDS), and universal use of the high-speed digital signal processor provide an outstanding basis of the radar communication integration. Minimum Shift Keying Linear Frequency Modulation (MSK-LFM) is a novel multifunctional radar waveform. For all above, this paper proposes an integrated working mode based on positive and negative frequency modulation in radar communication integration. In the mode, the radar main station transmits positive linear modulation frequency signals, however, the communication affiliated station transmits negative linear modulation frequency signals. Their orthogonality causes less interference. Through the derivation, the method for the orthogonality improvement is obtained. The effectiveness of this working mode is proved by the simulations.
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Acknowledgement
This work was supported in part by the National Key R&D Program of China under Grant 2017YFC1405202, in part by the National Natural Science Foundation of China under Grant 61571159 and Grant 61571157, and in part by the Public Science and Technology Research Funds Projects of Ocean under Grant 201505002.
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© 2019 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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Zhao, Q., Liu, A. (2019). Research on the Integrated Working Mode Based on Positive and Negative Frequency Modulation in Radar Communication Integration. In: Jia, M., Guo, Q., Meng, W. (eds) Wireless and Satellite Systems. WiSATS 2019. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 281. Springer, Cham. https://doi.org/10.1007/978-3-030-19156-6_38
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DOI: https://doi.org/10.1007/978-3-030-19156-6_38
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