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1. (WO2018119936) DIRECTION ANGLE OF ARRIVAL ESTIMATION METHOD AND APPARATUS

Pub. No.:    WO/2018/119936    International Application No.:    PCT/CN2016/113205
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Fri Dec 30 00:59:59 CET 2016
IPC: G01S 3/48
Applicants: SHENZHEN TINNO WIRELESS TECHNOLOGY CO.,LTD
深圳天珑无线科技有限公司
Inventors: WANG, Jie
王洁
Title: DIRECTION ANGLE OF ARRIVAL ESTIMATION METHOD AND APPARATUS
Abstract:
Provided are a direction angle of arrival estimation method and apparatus. The direction angle of arrival estimation method provided by the embodiments of the present application is executed in a system comprising a sending end and a receiving end, and is executed on the receiving end. The receiving end is provided with M antennas, M being an integer greater than or equal to 3; and the sending end transmits, on N carriers, data to the receiving end, N being an integer greater than or equal to 5. The method comprises: firstly, by measuring channel phase information of M antennas respectively on N subcarriers, obtaining a first channel phase matrix; then extracting several sub-channel phase matrices from the first channel phase matrix, wherein the number of elements in the various sub-channel phase matrices is less than the number of elements in the first channel phase matrix; and according to the several sub-channel phase matrices, estimating direction angle of arrival information of multiple azimuths. Therefore, the technical solution provided by the embodiments of the present application can solve the problem of the current AOA estimation method that when the number of antennas is relatively small, an obtained AOA estimation result has a relatively low accuracy and relatively poor universality.