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Array antenna signal processing method

An array antenna and signal processing technology, 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 Amount and complexity, flexible and diverse effects

Active Publication Date: 2006-11-01
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 the array antenna signal, only use part of the antenna unit to receive the signal to estimate user characteristic parameters, and then use the estimated user characteristic parameters to calculate the weighting coefficients of all antenna units.

[0031] Here, some of the antenna elements used are pre-selected according to the array antenna form or according to the quality of the received signal of the antenna element. 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 suitable for the array signal processing method based on user characteristic parameter estimation.

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

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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 in a certain distribution mode, and is mainly used to improve the performance of the antenna system including high gain in mobile communications. Each antenna element in the array antenna is an independent element, each antenna element can be an omnidirectional antenna or a directional antenna, and the distribution of all antenna elements can be linear, loop, planar or three-dimensional. Array antenna technology is to complete the reception and transmission of user signals in various environments through the mutual cooperation of all antenna elements. Generally speaking, the array antenna technology calculates and determines the transmission signal on each antenna element by estimating the received signal. Weighting parameters, and then using the calc...

Claims

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Application Information

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Patent Type & Authority Applications(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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