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1. JP2021180388 - TRANSMISSION DEVICE COLLATION DEVICE, TRANSMISSION DEVICE COLLATION METHOD, AND PROGRAM

Office
Japan
Application Number 2020084332
Application Date 13.05.2020
Publication Number 2021180388
Publication Date 18.11.2021
Publication Kind A
IPC
H04B 17/18
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
17Monitoring; Testing
10of transmitters
15Performance testing
18Monitoring during normal operation
CPC
H04B 17/104
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
17Monitoring; Testing
10of transmitters
101for measurement of parameters
104of other parameters, e.g. DC offset, delay or propagation times
H04W 16/18
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
16Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
18Network planning tools
H04B 17/391
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
17Monitoring; Testing
30of propagation channels
391Modelling the propagation channel
Applicants NEC CORP
日本電気株式会社
Inventors OTSUJI TAICHI
大辻 太一
SAKAI ATSUSHI
堺 淳
Agents 家入 健
Title
(EN) TRANSMISSION DEVICE COLLATION DEVICE, TRANSMISSION DEVICE COLLATION METHOD, AND PROGRAM
(JA) 送信装置照合装置、送信装置照合方法、及びプログラム
Abstract
(EN)

PROBLEM TO BE SOLVED: To provide a transmission device collation device capable of reducing a decrease in collation accuracy even for a signal having a wide band as compared with a signal wirelessly transmitted from a transmission device to be collated when collation of the transmission device is performed.

SOLUTION: A transmission device collation device 1 includes a reception unit 1a that receives a signal wirelessly transmitted from a transmission device, a signal area detection unit 1b, a feature amount extraction unit 1c, and a collation unit 1d. The signal area detection unit 1b generates a spectrogram from the received signal received by the reception unit 1a, and detects a signal area parameter indicating a specific signal area on the basis of the spectrogram. The feature amount extraction unit 1c converts the received signal on the basis of a signal conversion parameter corresponding to the signal area parameter, and extracts the feature amount from the converted signal. The collation unit 1d calculates the similarity on the basis of the extracted feature amount and the feature amount stored in advance, and collates the transmission device on the basis of the similarity. The transmission device collation device 1 adjusts the signal area parameter on the basis of the collation accuracy in the collation unit 1d.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2022,JPO&INPIT


(JA)

【課題】送信装置の照合を行うに際し、照合対象の送信装置から無線送信される信号に比して広帯域の信号に対しても照合精度の低下を低減させることが可能な送信装置照合装置を提供する。
【解決手段】送信装置照合装置1は、送信装置から無線送信された信号を受信する受信部1a、信号領域検出部1b、特徴量抽出部1c、照合部1dを備える。信号領域検出部1bは受信部1aで受信した受信信号からスペクトログラムを生成し、スペクトログラムに基づき、特定の信号領域を示す信号領域パラメータを検出する。特徴量抽出部1cは信号領域パラメータに応じた信号変換パラメータに基づき受信信号を変換し、変換後の信号から特徴量を抽出する。照合部1dは抽出された特徴量と予め記憶された特徴量とに基づき類似度を算出し、類似度に基づき送信装置を照合する。送信装置照合装置1は、信号領域パラメータを照合部1dでの照合精度に基づき調整する。
【選択図】図1


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