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Symbol detection method for orthogonal time-frequency air conditioning system

A modulation system and detection method technology, applied in the field of signal processing, can solve problems such as high complexity and poor performance

Pending Publication Date: 2022-04-12
袁正道
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Problems solved by technology

[0010] The purpose of the present invention is to provide a symbol detection method for orthogonal time-frequency-space modulation system, which can solve the defects of high complexity and poor performance in the existing OTFS detection method

Method used

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  • Symbol detection method for orthogonal time-frequency air conditioning system
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  • Symbol detection method for orthogonal time-frequency air conditioning system

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Embodiment Construction

[0075] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

[0076] like figure 1 As shown, the symbol detection method for the orthogonal time-frequency-space modulation system described in the present invention includes the following steps:

[0077] A: Establish DD domain channel matrix;

[0078] Described step A comprises the following concrete steps:

[0079] A1: The modulation and demodulation process of the OTFS system is essentially the transformation process of data in different domains. The DD domain plane is defined as a virtual plane. The horizontal and vertical axes of the coordinate axes are Doppler frequency shift and time delay respectively, and the coordinates The axis is divided into grids by the unit Doppler frequency shift Δf and the unit delay Δτ, and the information bit sequence b∈{0,1} to be transmitted is converted into a data symbol sequence x[k, l], k=0,1,...N-1, l=0,1,...,M-1, place the data s...

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Abstract

The invention discloses a symbol detection method for an orthogonal time-frequency air conditioning system. The symbol detection method comprises the following steps: A, establishing a DD domain channel matrix; b, processing a channel matrix by using a block circulation-in-block circulation characteristic; and C, carrying out symbol detection by using the DD domain channel matrix. According to the OTFS detection method, the defects of high complexity and poor performance in the existing OTFS detection method can be solved, and a non-Gaussian channel matrix with a special structure can be well processed.

Description

technical field [0001] The invention relates to the field of signal processing, in particular to a symbol detection method for an orthogonal time-frequency-space modulation system. Background technique [0002] With the gradual shortening of the iteration cycle of modern communication technology, the next-generation mobile communication standard has become a strategic location that various countries focus on occupying. The 6th generation (6G) mobile communication technology will provide ubiquitous connections in people's lives, such as autonomous driving, high-speed trains, drones and low-orbit satellites, etc. How to provide reliable communication in an ultra-high-speed mobile environment has become one of the key issues in 6G technology. The next generation of mobile communications will reach a peak throughput of terabits, and spectrum resources need to be extended to millimeter wave bands. Millimeter wave has a larger bandwidth and can achieve higher data rates, but thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/02H04L27/26
Inventor 袁正道赵恒史梁藏涛刘亚同
Owner 袁正道
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