Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
TRANSMITTER, RECEIVER, SIGNAL TRANSMISSION METHOD, CIR MEASUREMENT METHOD, SIGNAL TRANSMISSION PROGRAM, AND CIR MEASUREMENT PROGRAM
Document Type and Number:
Japanese Patent JP2023076870
Kind Code:
A
Abstract:
To perform CIR measurement in a short time.SOLUTION: A transmitter 10 comprises a plurality of echo sounder transmitters 11, and a control unit 13 for causing the plurality of echo sounder transmitters 11 to transmit a signal per echo sounder transmitter 11 for performing CIR measurement, the signal per echo sounder transmitter 11 being such that a cross correlation function between instances of the signal has a peak at a different time for each combination with the other instance of the signal. A receiver 20 comprises a plurality of echo sounder receivers 21, and a measurement unit 23 for storing a signal per echo sounder transmitter 11 that corresponds to each echo sounder receiver 21, for preliminarily performing CIR measurement and conducting CIR measurement per echo sounder receiver 21 from the stored signal and the received sound wave having been received by each of the plurality of echo sounder receivers 21. The signal per echo sounder transmitter 11 is as mentioned above, and a measurement unit 23 calculates a cross correlation function between the received sound wave and a signal corresponding to the echo sounder receiver 21 having received the received sound wave, and separates an impact of signals irrelevant to CIR measurement from the calculated cross correlation function before conducting CIR measurement.SELECTED DRAWING: Figure 1

More Like This:
JP2017522772Channel state information CSI reporting method and equipment, and base station antenna
WO/2021/162497MAXIMUM POWER REDUCTION
JP6213854The Puri coding method, a Precoding device
Inventors:
DEGUCHI MICHIYASU
KIDA YUKIHIRO
SHIMURA TAKUYA
Application Number:
JP2021189861A
Publication Date:
June 05, 2023
Filing Date:
November 24, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
JAPAN AGENCY FOR MARINE EARTH SCIENCE & TECH
International Classes:
H04B7/0413; H04B17/309; H04B13/02
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Kenji Fukaishi



 
Previous Patent: Cable tray diagonal part tray support and cable tray diagonal part support method

Next Patent: refrigeration system