Title:
DENSE MULTIPATH PARAMETER ESTIMATION METHOD USING MULTI-POLARIZATION BROADBAND EXTENSION ARRAY RESPONSE
Document Type and Number:
WIPO Patent Application WO/2022/016888
Kind Code:
A1
Abstract:
The present invention discloses a dense multipath parameter estimation method using a multi-polarization broadband extension array response. The method comprises: first sending a plurality of groups of different sending signal sequences by means of a multi-polarization antenna array, processing a plurality of pieces of snapshot receiving data according to known sending signals, obtaining channel responses of all frequency points of a multi-polarization antenna component in a frequency band, and expanding an obtained multi-frequency-point channel response matrix under a plurality of snapshots into a large two-dimensional channel response matrix; then, obtaining a multipath propagation time delay parameter by using a reference point array element, and estimating a two-dimensional departure angle and a two-dimensional arrival angle by using a channel matrix subjected to frequency domain smooth dimension reduction; pairing the estimated departure angle with the estimated arrival angle, estimating a cross polarization ratio, an initial phase, and an amplitude parameter of a sub-path by using the estimated parameters, and finally achieving multi-dimensional parameter estimation. The present invention can achieve the estimation of multi-dimensional sub-path parameters in a dense multi-path environment, and can be used in the fields of radio wave propagation measurement, indoor positioning and the like.
Inventors:
WANG HAIMING (CN)
YANG BENSHENG (CN)
ZHANG PEIZE (CN)
YU CHEN (CN)
HONG WEI (CN)
YANG BENSHENG (CN)
ZHANG PEIZE (CN)
YU CHEN (CN)
HONG WEI (CN)
Application Number:
PCT/CN2021/081350
Publication Date:
January 27, 2022
Filing Date:
March 17, 2021
Export Citation:
Assignee:
UNIV SOUTHEAST (CN)
International Classes:
H04L25/02
Foreign References:
| CN112054972A | 2020-12-08 | |||
| CN107645460A | 2018-01-30 | |||
| CN103703730A | 2014-04-02 | |||
| CN109738916A | 2019-05-10 |
Other References:
YANG BENSHENG; ZHANG PEIZE; WANG HAIMING; HONG WEI: "Efficient Delay and AoA Estimation Using Vector Antenna for Radio Propagation Measurements", 2019 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND USNC-URSI RADIO SCIENCE MEETING, IEEE, 7 July 2019 (2019-07-07), pages 2125 - 2126, XP033654285, DOI: 10.1109/APUSNCURSINRSM.2019.8888694
Attorney, Agent or Firm:
NANJING RUIHONG PATENT & TRADEMARK AGENCY (ORDINARY PARTNERSHIP) (CN)
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