nmw-ofdm system for integrated terahertz communication and perception

A terahertz and perception 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 accuracy of perception

Active Publication Date: 2021-10-26
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 integrated terahertz communication and perception

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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] Such as 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...

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Abstract

An NMW-OFDM system for terahertz communication perception integration, including: a terahertz communication perception integrated transmitter located at the transmitting end and a multi-stage sensing module located at the receiving end, the terahertz communication perception integrated transmitter modulates communication data In order to sense the integrated wireless radio frequency signal for communication and transmit it, the multi-stage sensing module estimates K speed candidate values ​​in parallel for the received target reflection signals, and serially estimates to obtain the final estimated distance of the target. The invention makes full use of the characteristics of terahertz sensing and detection, and its distance estimation accuracy can be increased by three orders of magnitude without reducing the maximum detectable distance, while the speed estimation accuracy can be increased by an order of magnitude. At the same time, ultra-high data rates of up to 100Gbps can be achieved, which is more than 100 times the data rate obtainable by mmWave systems.

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 perception integration (THz joint 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 th...

Claims

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Application Information

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Patent Type & Authority Patents(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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