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Space channel characteristic prediction method and system based on m sequence and storable medium

A characteristic prediction and spatial channel technology, applied in the transmission system, transmission monitoring, electrical components, etc., to achieve adaptability, improve signal-to-noise ratio, and better analyze spatial channel characteristics

Pending Publication Date: 2022-04-19
HARBIN ENG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

[0010] In view of this, the present invention provides an m-sequence-based spatial channel characteristic prediction method, system and storage medium, which solves the problems of traditional DOA prediction, time delay and Doppler

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  • Space channel characteristic prediction method and system based on m sequence and storable medium
  • Space channel characteristic prediction method and system based on m sequence and storable medium
  • Space channel characteristic prediction method and system based on m sequence and storable medium

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Embodiment Construction

[0064] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0065] On the one hand, see attached figure 1 As shown, the embodiment of the present invention discloses a method for predicting spatial channel characteristics based on m-sequences. The spatial channel characteristics include delay, incident angle and Doppler analysis. The specific steps are:

[0066] S100: setting array parameters of spatial channels and transmitting signal parameters;

[0067] S200: Intercepting the sampling signal according to the set ar...

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Abstract

The invention discloses a space channel characteristic prediction method and system based on an m sequence and a storable medium, and belongs to the technical field of underwater acoustic channel communication, and the method comprises the steps: setting an array parameter and a transmitting signal parameter; sampling signals are intercepted according to the set array parameters and emission signal parameters; carrying out delay summation beam forming on the intercepted sampling signal; capturing data formed by the delay summation beam to obtain a capturing result; generating a delay angle distribution diagram according to a capture result, and predicting signal delay and an incident angle; and performing Doppler analysis on the path signal according to a signal delay and incident angle prediction result to complete spatial channel characteristic prediction. According to the method, the problems of traditional direction-of-arrival prediction, time delay and Doppler are solved, so that the prediction performance of spatial channel characteristics is improved.

Description

technical field [0001] The present invention relates to the technical field of underwater acoustic channel communication, and more specifically relates to an m-sequence-based spatial channel characteristic prediction method, system and storage medium. Background technique [0002] No matter which communication mode is adopted, the propagation characteristics of the underwater acoustic channel have a huge impact on the effectiveness and reliability of the underwater acoustic communication system. Before designing a communication system, it is necessary to fully understand the characteristics of the underwater acoustic channel, so the underwater acoustic channel is a very important aspect in the study of underwater acoustic communication. [0003] Signals can take many different propagation paths from a transmitter to a receiver. During the propagation of underwater acoustic signals, the sound rays will be bent due to the non-uniformity of the medium, and the reflection and r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/69H04B13/02H04B17/309H04B17/391
CPCH04B13/02H04B1/69H04B17/309H04B17/3913Y02D30/70
Inventor 周锋张宝胜乔钢
Owner HARBIN ENG UNIV
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