Patent
Radar communication waveform design method based on sparse frequency
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TLDR
In this paper, a radar communication waveform design method based on sparse frequency is presented. But the method is not suitable for the case of radar tag systems, and the communication signal samples are mutually orthogonal and related with the sparse frequency waveforms to some degree, and therefore it can be guaranteed that the error rate and interception rate of the communication signals are low.Abstract:
The invention discloses a radar communication waveform design method based on sparse frequency. The method includes the steps that step1, a radar Tag system receives scattering radar echoes, and a power spectral density matching method is adopted for designing sparse frequency radar waveforms for the scattering radar echoes; step2, eigen decomposition is performed on the sequence of the sparse frequency radar waveforms to obtain an eigenvector group, and part of the eigenvector group is used for designing communication waveforms; step3, the communication waveform obtained in the step2 are embedded into the obtained sparse frequency radar waveforms, and obtained hybrid waveforms are sent to a radar receiver. Compared with linear frequency modulation waveforms, the sparse frequency waveforms can widen the occupied space of a frequency band of communication signals, and therefore a higher communication rate can be obtained; meanwhile, communication signal samples are mutually orthogonal and related with the sparse frequency waveforms to some degree, and therefore it can be guaranteed that the error rate and interception rate of the communication signals are low.read more
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References
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Intrapulse Radar-Embedded Communications
TL;DR: It is demonstrated that, given persistent radar illumination with a pulse repetition frequency (PRF) of 1-2 kHz, intrapulse radar-embedded communications can theoretically achieve data-rates commensurate with speech coding with the potential for even higher data- rates if additional diversity is appropriately incorporated.
Proceedings ArticleDOI
Diversity Aspects of Radar-Embedded Communications
TL;DR: A general mathematical formulation for intra-pulse radar-embedded communications is presented and provides insight into options for even higher data-rates by utilizing additional degrees-of-freedom.
Patent
Integral coding/decoding method based on MIMO radar communication
TL;DR: In this article, an integral coding/decoding method based on MIMO radar communication is proposed, which guarantees the orthogonality of bipolar phase spread spectrum code sequence based on WalsH matrix.
Proceedings ArticleDOI
Sparse frequency waveform design based on PSD fitting
Guohua Wang,Yilong Lu +1 more
TL;DR: This paper proposes a new method for designing sparse frequency waveform with sidelobe constraint that has a simpler optimization objective function and enjoys more efficiency than current methods focusing on both two requirements.