Title:
受信装置
Document Type and Number:
Japanese Patent JP7208570
Kind Code:
B2
Abstract:
A receiving apparatus includes: M receivers configured to receive signals based on sound waves propagating in water; M FIR filters configured to perform waveform operation on the signals received by the receivers; a combiner configured to combine output signals of the M FIR filters; and a filter coefficient calculation portion configured to calculate a tap coefficient of the M FIR filters so as to reduce an error of the output signals combined by the combiner. The M FIR filters have a tap length that is shorter than a delay spread that is a possible range between a time of arrival of a direct wave and a time of arrival of a delayed wave of the sound waves.
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Inventors:
Yosuke Fujino
Hiroyuki Fukumoto
Kazunori Akabane
Hiroyuki Fukumoto
Kazunori Akabane
Application Number:
JP2021555662A
Publication Date:
January 19, 2023
Filing Date:
November 12, 2019
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04B11/00
Domestic Patent References:
| JP200226780A | ||||
| JP2001257627A | ||||
| JP2006323395A |
Attorney, Agent or Firm:
Patent Attorney Shiga International Patent Office
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