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Intelligent antenna sub-carrier balancing method and processing device

A technology of smart antenna and equalization method, which is applied in the field of communication, can solve problems such as the limitation of the number of degrees of freedom of the array, the inability to meet interference applications, and performance loss, so as to compensate for performance loss, enhance effectiveness and robustness, and improve output signal-to-noise than the effect

Inactive Publication Date: 2018-06-05
孙航
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing beamforming spatial filtering is limited by the number of degrees of freedom of the array, which cannot meet the requirements of complex interference and multipath environments.
Smart antennas use beamforming algorithms to suppress external interference, and beamforming will cause performance loss caused by channel frequency selective fading

Method used

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  • Intelligent antenna sub-carrier balancing method and processing device
  • Intelligent antenna sub-carrier balancing method and processing device
  • Intelligent antenna sub-carrier balancing method and processing device

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Embodiment Construction

[0041] The present invention will be further described in detail below with reference to the embodiments given in the accompanying drawings. The described embodiments include various specific details to aid in understanding, but they are to be regarded only as exemplary, some, not all, embodiments of the invention. Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those skilled in the art to which the present invention belongs. Meanwhile, detailed descriptions of functions and constructions well-known in the art will be omitted for clarity and conciseness of the description.

[0042] The receiving mode of the smart antenna is set to two modes: correction mode and equalization processing mode. When the whole set of antenna receiving device is initially applied, the correction mode is used first. After the FPGA completes the calculation and storage of the correction coefficients, it can enter the normal wor...

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Abstract

The invention discloses an intelligent antenna sub-carrier balancing method and processing device. An intelligent antenna beam-forming processing method is improved. The method comprises the followingsteps: firstly performing consistency correction one frequency point by one frequency point on each channel, and then smoothly balancing the sub-carrier by adopting a window function, suppressing theinterference at a spatial frequency domain, and eliminating useful signal out-of-band clutter, and finally converting to a time domain to obtain a useful signal; the smooth weighting is performed oneach sub-carrier for the situation that the spatial frequency features of various sub-carriers in the receiving signal are different, thereby compensating the performance loss caused by the selectiveattenuation of the channel frequency, enhancing the effectiveness and robustness of an interference suppression algorithm. The strong broadband and narrow-band interference can be effectively suppressed in a complex electromagnetic environment, and the performance loss caused by the selective attenuation of the channel frequency is compensated at the same time, thereby improving the output signal-to-noise ratio of a beam-forming algorithm.

Description

technical field [0001] The invention relates to the communication field, in particular to a subcarrier equalization anti-interference processing method and a processing device for a smart antenna. Background technique [0002] Communication has penetrated into every corner of our daily life and has greatly changed our lives. For example, the telephone at hand, the TV and radio in the living room, etc., can quickly and timely transmit news from all over the world to us. We can also use it to know the status of ships at sea, airplanes in the sky, rockets and satellites in outer space. With the continuous development of communication and information processing technology, people's requirements for communication quality are getting higher and higher, so improving the capacity of wireless communication systems and expanding the business scope of communication has become the goal pursued by people. [0003] The main problems in broadband wireless systems are intersymbol interfer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04L25/03
CPCH04B7/0617H04L25/03006
Inventor 孙航任超
Owner 孙航
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