JP4341522B2 - 水中通信方式 - Google Patents

水中通信方式 Download PDF

Info

Publication number
JP4341522B2
JP4341522B2 JP2004295516A JP2004295516A JP4341522B2 JP 4341522 B2 JP4341522 B2 JP 4341522B2 JP 2004295516 A JP2004295516 A JP 2004295516A JP 2004295516 A JP2004295516 A JP 2004295516A JP 4341522 B2 JP4341522 B2 JP 4341522B2
Authority
JP
Japan
Prior art keywords
synchronization
communication system
channel
underwater communication
function
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2004295516A
Other languages
English (en)
Japanese (ja)
Other versions
JP2006109279A5 (enExample
JP2006109279A (ja
Inventor
邦夫 橋場
文孝 前田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2004295516A priority Critical patent/JP4341522B2/ja
Publication of JP2006109279A publication Critical patent/JP2006109279A/ja
Publication of JP2006109279A5 publication Critical patent/JP2006109279A5/ja
Application granted granted Critical
Publication of JP4341522B2 publication Critical patent/JP4341522B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Synchronisation In Digital Transmission Systems (AREA)
JP2004295516A 2004-10-08 2004-10-08 水中通信方式 Expired - Fee Related JP4341522B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004295516A JP4341522B2 (ja) 2004-10-08 2004-10-08 水中通信方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004295516A JP4341522B2 (ja) 2004-10-08 2004-10-08 水中通信方式

Publications (3)

Publication Number Publication Date
JP2006109279A JP2006109279A (ja) 2006-04-20
JP2006109279A5 JP2006109279A5 (enExample) 2006-12-28
JP4341522B2 true JP4341522B2 (ja) 2009-10-07

Family

ID=36378448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004295516A Expired - Fee Related JP4341522B2 (ja) 2004-10-08 2004-10-08 水中通信方式

Country Status (1)

Country Link
JP (1) JP4341522B2 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120062587A (ko) * 2010-12-06 2012-06-14 강릉원주대학교산학협력단 수중 무선통신을 위한 통신 장치 및 방법
CN103618575B (zh) * 2013-12-11 2015-07-15 厦门大学 一种调频水声通信系统的自动实时帧同步方法
KR101917503B1 (ko) * 2017-04-06 2018-11-09 국방과학연구소 직교 코드가 포함된 수중음향신호를 이용한 다중 수중표적 거리 추정 방법 및 시스템
JP7593575B2 (ja) * 2023-02-21 2024-12-03 三菱電機ディフェンス&スペーステクノロジーズ株式会社 水中通信システム、送信機及び受信機

Also Published As

Publication number Publication date
JP2006109279A (ja) 2006-04-20

Similar Documents

Publication Publication Date Title
JP7182806B2 (ja) 位置決定システム
Diamant et al. Low probability of detection for underwater acoustic communication: A review
EP3193186B1 (en) Location system
JP5076653B2 (ja) 通信システム、通信方法および基地局装置
US20160315717A1 (en) Underwater acoustic array, communication and location system
CN105323198B (zh) 一种利用双曲调频进行水下信号发射和接收的方法
KR101580427B1 (ko) 시변 수중음향통신 채널을 위한 도플러 주파수 추정 및 수신방법
JP2004528773A (ja) 水中通信システム
Steinmetz et al. Taking LoRa for a dive: CSS for low-power acoustic underwater communication
Hursky et al. Point-to-point underwater acoustic communications using spread-spectrum passive phase conjugation
Rahmati et al. SSFB: Signal-space-frequency beamforming for underwater acoustic video transmission
US7310286B1 (en) System for undersea digital acoustic communications
JP4341522B2 (ja) 水中通信方式
JP4333475B2 (ja) 水中通信システム
US7218574B2 (en) High range rate signaling
JP2010538511A (ja) 水中通信
Yoshizawa et al. Data selective rake reception for underwater acoustic communication in strong multipath interference
Beaujean et al. HERMES—A high bit-rate underwater acoustic modem operating at high frequencies for ports and shallow water applications
Hursky et al. Passive phase-conjugate signaling using pulse-position modulation
CN120202626A (zh) 用于电子设备的通信方法和系统
JP6051787B2 (ja) 通信装置及び通信方法
JP4119178B2 (ja) Ofdm方式の受信装置
US11567196B2 (en) Expended range tracking Doppler sonar
Kuznetsov et al. Performance of the OFDM underwater acoustic communication system with high-rank subcarrier modulation and active beam pattern control
Steinmetz et al. Comparison of Sweep Spread Carrier and Frequency Shift Chirp Modulation in Shallow Waters

Legal Events

Date Code Title Description
RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20060425

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20061114

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20061114

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20081209

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090106

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090303

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090324

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090525

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20090616

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20090629

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120717

Year of fee payment: 3

R151 Written notification of patent or utility model registration

Ref document number: 4341522

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120717

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130717

Year of fee payment: 4

LAPS Cancellation because of no payment of annual fees