NMW-OFDM system for terahertz communication perception integration

A terahertz and sensing module technology, applied in the field of terahertz communication, can solve the problem that the complexity of the receiver is difficult to meet the needs of the industry, and achieve the effect of increasing the maximum unambiguous distance and improving the sensing accuracy.

Active Publication Date: 2021-05-04
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

Existing communication-sensing integration solutions are based on Orthogonal Frequency Division Multiplexing (OFDM) or Orthogonal Time-Frequency-Space (OTFS)-based multi-carrier waveforms, but these solutions are difficult to meet the current industrial needs in terms of receiver complexity

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  • NMW-OFDM system for terahertz communication perception integration
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  • NMW-OFDM system for terahertz communication perception integration

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Embodiment Construction

[0013] An NMW-OFDM system for integrated terahertz communication and perception related to this embodiment includes: figure 2 The shown terahertz communication perception integrated (NMW-OFDM) transmitter located at the transmitting end and such as image 3 The multi-stage perception module at the receiving end is shown.

[0014] like figure 2 As shown, the terahertz communication perception integrated transmitter includes: a constellation map mapper, an OFDM multi-frame parallel modulator, a digital-to-analog converter and a frequency shifter, wherein: the constellation map mapper maps the communication bit rate data For the digital symbols of K data frames, the OFDM multi-frame parallel modulator composed of K modulators in parallel maps K data frames to each subcarrier of different bandwidth and modulates them into digital baseband signals, and the digital-to-analog converter will The digital signal is converted into an analog signal, and the frequency shifter shifts di...

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Abstract

An NMW-OFDM system for terahertz communication and perception integration comprises a terahertz communication and perception integration transmitter located at a transmitting end and a multi-stage perception module located at a receiving end, the terahertz communication and perception integration transmitter modulates communication data into communication and perception integration wireless radio frequency signals and transmits the communication and perception integration wireless radio frequency signals, and the multi-stage perception module estimates K speed candidate values in parallel for the received target reflection signal, and performs serial estimation to obtain a final target estimation distance. According to the invention, the characteristics of terahertz perception detection are fully utilized, the distance estimation precision can be improved by three orders of magnitude, and the speed estimation precision can be improved by one order of magnitude while the maximum detectable distance is not reduced. And meanwhile, an ultrahigh data rate as high as 100Gbps can be realized, which is more than 100 times of the data rate obtained by a millimeter wave system.

Description

technical field [0001] The present invention relates to a technology in the field of terahertz communication, in particular to a non-uniform multi-bandwidth orthogonal frequency division multiplexing (NMW-OFDM) system for terahertz communication and sensing integration (THzjoint communication and sensing). Background technique [0002] The JCS technology involved in the existing Internet of Vehicles and Unmanned Aerial Vehicles (UAV) generally refers to the dual functions of communication and perception, among which indoor communication perception applications include wireless virtual / augmented reality (VR / AR). Existing communication-aware integration schemes are based on Orthogonal Frequency Division Multiplexing (OFDM) or Orthogonal Time-Frequency-Space (OTFS)-based multi-carrier waveforms, but these schemes cannot meet the current industrial needs in terms of receiver complexity. Contents of the invention [0003] Aiming at the above-mentioned deficiencies in the prio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04B10/90
CPCH04B10/90H04L27/2626H04L27/2647
Inventor 韩充吴永知
Owner SHANGHAI JIAO TONG UNIV
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