Sparse Frequency Waveform Design for Radar-Embedded Communication
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TLDR
According to the Tag application with function of covert communication, a method for sparse frequency waveform design based on radar-embedded communication is proposed, which can further improve the bandwidth occupation of communication signals, thus achieving higher communication rate.Abstract:
According to the Tag application with function of covert communication, a method for sparse frequency waveform design based on radar-embedded communication is proposed. Firstly, sparse frequency waveforms are designed based on power spectral density fitting and quasi-Newton method. Secondly, the eigenvalue decomposition of the sparse frequency waveform sequence is used to get the dominant space. Finally the communication waveforms are designed through the projection of orthogonal pseudorandom vectors in the vertical subspace. Compared with the linear frequency modulation waveform, the sparse frequency waveform can further improve the bandwidth occupation of communication signals, thus achieving higher communication rate. A certain correlation exists between the reciprocally orthogonal communication signals samples and the sparse frequency waveform, which guarantees the low SER (signal error rate) and LPI (low probability of intercept). The simulation results verify the effectiveness of this method.read more
Citations
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Beampattern Optimization for Frequency Diverse Array With Sparse Frequency Waveforms
TL;DR: A new method is proposed for the FDA, which randomly samples multiple distance points such that the MIMO radar beampattern with the both sparse frequency spectrum and constant modulus constraints are realized by the proposed beamp attern design framework.
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Radar Communication Integrated Waveform Design Based on OFDM and Circular Shift Sequence
TL;DR: The designed RadCom waveform has a thumbtack type fuzzy function and shows the good ability to do multitarget detection and can simultaneously achieve lower PMERP and higher PSLR.
Proceedings ArticleDOI
A New Radar-Embedded Communication Waveform Based on Singular Value Decomposition
Jianqiu Xu,Baoguo Li +1 more
TL;DR: This paper proposes a new waveform design method based on singular value decomposition (SVD) and results show that the SVD waveform generated by the proposed method is better than the traditional REC waveforms.
Journal ArticleDOI
Orthogonal Waveform Design for Radar-Embedded Communications
TL;DR: Theoretical analysis and simulation results have shown that these three strategies can dramatically improve communication reliability and the performance of the strategies mentioned above has been assessed by the low probability of intercept (LPI) metric.
Journal ArticleDOI
A New Shaped Waveform Design Scheme for Radar Embedded Communication
TL;DR: A new waveform design scheme that combines the idea of shaped design and de-correlation filter receivers is constructed and analyzed, showing that this scheme improves the covertness of communication.
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.
Journal ArticleDOI
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TL;DR: This work deals with the problem of intrapulse radar-embedded communication and proposes a novel waveform design procedure based on a multiobjective optimization paradigm that reduces the vectorial problem into a scalar one using Pareto weights defining the relative importance of the two objectives.
Journal ArticleDOI
Analysis of symbol-design strategies for intrapulse radar-embedded communications
TL;DR: The design of communication symbols that may be embedded on an intrapulse basis into the backscatter generated by a high-power, pulsed radar is considered.
Journal ArticleDOI
Designing single/multiple sparse frequency waveforms with sidelobe constraint
Guohua Wang,Yilong Lu +1 more
TL;DR: A new method for designing sparse frequency waveform with low range side lobes by minimising a new effective penalty function based on both requirements for the power spectrum density and the range side lobe through an iterative algorithm is proposed.
Journal ArticleDOI
A technique for the identification and localization of SAR targets using encoding transponders
D. Hounam,K.-H. Wagel +1 more
TL;DR: Targets in SAR images can be tagged for unambiguous identification and localization by equipping them with transponders that encode the signal received from the SAR before it is retransmitted using the encoding technique described below.