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Array antenna signal processing method

An array antenna and signal processing technology, which is applied to antennas, antenna arrays, diversity/multi-antenna systems, etc., can solve the problems of reduced reliability of received signals and complex signals received by array antennas, and achieve strong applicability and reduced calculation The amount and complexity, the effect of ensuring the launch effect

Active Publication Date: 2009-05-13
WUHAN HONGXIN TELECOMM TECH CO LTD +1
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Problems solved by technology

[0008] In addition, for a complex wireless environment, the received signal of an array antenna is complex. Generally speaking, the signal fading of different antenna units is different. If a certain antenna unit is in a deep fading state, the reliability of its received signal will be reduced, in this case, there is a problem of how to effectively use all antenna elements to improve the reliability of received signals

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Embodiment Construction

[0030] The core idea of ​​the present invention is to reduce the processing dimension of array antenna signals, use only some antenna elements to receive signals to estimate user characteristic parameters, and then use the estimated user characteristic parameters to calculate the weighting coefficients of all antenna elements.

[0031] Here, some of the antenna units used are pre-selected according to the form of the array antenna, or according to the received signal quality of the antenna units. In the present invention, the weighting coefficient of the array signal is determined according to the estimated user characteristic parameters, so the method of the present invention is applicable to the array signal processing method based on the user characteristic parameter estimation.

[0032] Assuming that the dimension of the array antenna is M, select N (N≤M) channels of received signals for processing to obtain user characteristic parameters, and then estimate the receiving / tr...

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Abstract

The method comprises the following steps: a) defining a amounts of antenna elements required by processing the antenna signals, and selecting the antenna elements used to process the antenna signals of antenna array from all antenna elements; b) making signal estimation for signals received by the selected antenna elements to get a characteristic parameter estimation of user; the gotten characteristic parameter estimation is used to make a weighted coefficient estimation for all antenna elements in the antenna array; d) the gotten weighted coefficient is used to implement the sending and receiving of signals of the antenna array.

Description

technical field [0001] The invention relates to array antenna technology, in particular to a simplified array antenna signal processing method. Background technique [0002] The array antenna is composed of multiple antenna elements according to a certain distribution method, and is mainly used to improve the performance of the antenna system including high gain in mobile communication. Each antenna unit in the array antenna is independent of each other. Each antenna unit can be an omnidirectional antenna or a directional antenna. The distribution of all antenna units can be linear, circular, planar or three-dimensional. Array antenna technology is to complete the reception and transmission of user signals in various environments through the mutual cooperation between all antenna units. Generally speaking, array antenna technology calculates and determines the transmission signal on each antenna unit by estimating the received signal. Weighting parameters, and then using th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/04H01Q21/00
CPCH04B7/0865
Inventor 孙长果王映民杨贵亮
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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