A METHOD FOR IMPROVING INTELLIGENT ANTENNA ARRAY COVERAGE

Title:

A METHOD FOR IMPROVING INTELLIGENT ANTENNA ARRAY COVERAGE

Document Type and Number:

WIPO Patent Application WO/2001/073894

Kind Code:

A1

Abstract:

The invention relates to a method for improving intelligent antenna array coverage, arbitrary beam forming of the antenna array can be achieved by adjusting n beam forming parameters W(n) based on difference of size and shape parameters between coverage required in engineering design and actually realized coverage. The method includes: setting accuracy of W(n) to be solved, i.e. adjusting step; setting a group of initial values W¿0?(n), a group of square error initial values $g(e)¿0?, counter variable, adjustment termination threshold M and transmission power maximum T(n) of antenna element; the adjustment of W(n) is cyclically performed based on above set values. The antenna radiation parameters can be adjusted by means of gradual approach according to LMS principle, thus actual coverage of antenna array can approach requirement in condition of partial optimum.

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Inventors:

LI FENG (CN)
RAN XIAOLONG (CN)

Application Number:

PCT/CN2001/000017

Publication Date:

October 04, 2001

Filing Date:

January 12, 2001

Export Citation:

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Assignee:

CHINA ACADEMY OF TELECOMM TECH (CN)
LI FENG (CN)
RAN XIAOLONG (CN)

International Classes:

H01Q3/26; H01Q21/00; H01Q25/04; (IPC1-7): H01Q21/00

Domestic Patent References:

WO2000026988A1	2000-05-11
WO1999012232A1	1999-03-11
WO1997000543A1	1997-01-03

Foreign References:

CN2293901Y	1998-10-07
CN1249651A	2000-04-05
CN1181641A	1998-05-13
CN1208504A	1999-02-17
CN1249569A	2000-04-05
US5565873A	1996-10-15

Other References: