Title:
RADIO CHANNEL ANALYSIS DEVICE
Document Type and Number:
Japanese Patent JP2017092577
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To highly accurately estimate channel statistics even in an environment of much noise.SOLUTION: A radio channel analysis device comprises: an observation data acquisition unit 22 for acquiring observation data including a plurality of pilot signals received via a radio communication path regarding each of slots on a time base; and an analysis processing unit 24 for estimating channel statistics of the radio communication path and probability distribution of channel distortion for each slot by a particle filter including calculation of likelihood to which the observation data acquired by the observation data acquisition unit 22 are applied. The analysis processing unit 24 calculates the likelihood in a slot subjected to analysis by Karman smoothing to which the observation data of a slot following the slot subjected to analysis are applied.SELECTED DRAWING: Figure 1
Inventors:
HAGIWARA JUNICHIRO
Application Number:
JP2015217134A
Publication Date:
May 25, 2017
Filing Date:
November 04, 2015
Export Citation:
Assignee:
NTT DOCOMO INC
International Classes:
H04B17/309; H04J4/00; H04J11/00
Attorney, Agent or Firm:
Akira Obayashi
Seiichi Takada
Taro Takahashi
Seiichi Takada
Taro Takahashi