JPS61220545A - 一周波中継器 - Google Patents

一周波中継器

Info

Publication number
JPS61220545A
JPS61220545A JP60062414A JP6241485A JPS61220545A JP S61220545 A JPS61220545 A JP S61220545A JP 60062414 A JP60062414 A JP 60062414A JP 6241485 A JP6241485 A JP 6241485A JP S61220545 A JPS61220545 A JP S61220545A
Authority
JP
Japan
Prior art keywords
frequency
interference
multiplier
port
transmission
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.)
Granted
Application number
JP60062414A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0558307B2 (enrdf_load_stackoverflow
Inventor
Junji Namiki
並木　淳治
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP60062414A priority Critical patent/JPS61220545A/ja
Priority to CA000499209A priority patent/CA1235751A/en
Priority to AU52119/86A priority patent/AU574995B2/en
Priority to DE8686100232T priority patent/DE3681798D1/de
Priority to US06/817,380 priority patent/US4701935A/en
Priority to EP86100232A priority patent/EP0187672B1/en
Publication of JPS61220545A publication Critical patent/JPS61220545A/ja
Publication of JPH0558307B2 publication Critical patent/JPH0558307B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/155—Ground-based stations
    • H04B7/15564—Relay station antennae loop interference reduction
    • H04B7/15571—Relay station antennae loop interference reduction by signal isolation, e.g. isolation by frequency or by antenna pattern, or by polarization

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Relay Systems (AREA)
JP60062414A 1985-01-09 1985-03-27 一周波中継器 Granted JPS61220545A (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP60062414A JPS61220545A (ja) 1985-03-27 1985-03-27 一周波中継器
CA000499209A CA1235751A (en) 1985-01-09 1986-01-08 One frequency repeater for a digital microwave radio system with cancellation of transmitter-to-receiver interference
AU52119/86A AU574995B2 (en) 1985-01-09 1986-01-09 One frequency digital radio repeater
DE8686100232T DE3681798D1 (de) 1985-01-09 1986-01-09 Einfrequenzfunkrelais fuer ein digitales mikrowellenfunksystem mit kompensation der interfrequenz zwischen sender und empfaenger.
US06/817,380 US4701935A (en) 1985-01-09 1986-01-09 One frequency repeater for a digital microwave radio system with cancellation of transmitter-to-receiver interference
EP86100232A EP0187672B1 (en) 1985-01-09 1986-01-09 One frequency repeater for a digital microwave radio system with cancellation of transmitter-to-receiver interference

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60062414A JPS61220545A (ja) 1985-03-27 1985-03-27 一周波中継器

Publications (2)

Publication Number Publication Date
JPS61220545A true JPS61220545A (ja) 1986-09-30
JPH0558307B2 JPH0558307B2 (enrdf_load_stackoverflow) 1993-08-26

Family

ID=13199465

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60062414A Granted JPS61220545A (ja) 1985-01-09 1985-03-27 一周波中継器

Country Status (1)

Country Link
JP (1) JPS61220545A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0558307B2 (enrdf_load_stackoverflow) 1993-08-26

Similar Documents

Publication Publication Date Title
EP0187672B1 (en) One frequency repeater for a digital microwave radio system with cancellation of transmitter-to-receiver interference
US5263196A (en) Method and apparatus for compensation of imbalance in zero-if downconverters
US4370741A (en) Process and an apparatus for transmitting data across a two-wire line
US6516023B1 (en) System and method of downconversion where the received signal is downconverted
JP2959498B2 (ja) 自動周波数制御回路
US5677932A (en) Baseband estimator for estimating the amplitude/frequency characteristic of a multiphase signal
EP0457542B1 (en) Transceiver with Doppler correction
JPS61220545A (ja) 一周波中継器
JPH05291995A (ja) 無線中継局における干渉補償方法
JP2803114B2 (ja) 周波数変換器
JPH0611125B2 (ja) 同一周波数中継方式
JP2600612B2 (ja) 送受信装置
JPH0533570B2 (enrdf_load_stackoverflow)
JP2802089B2 (ja) マイクロ波中継方法
JPS61220534A (ja) 一周波中継器
JPH0525420B2 (enrdf_load_stackoverflow)
JPS601787B2 (ja) 無線伝送方式
JPH0528550B2 (enrdf_load_stackoverflow)
JPH0412660B2 (enrdf_load_stackoverflow)
JP3018453B2 (ja) 通信方式
SU807991A1 (ru) Устройство дл приема разнесенных сигналов
JPS62118645A (ja) 同一周波数中継方式
JPS61161058A (ja) 一周波中継器
JPH0523652B2 (enrdf_load_stackoverflow)
JPS62230102A (ja) サイドロ−ブ・キヤンセラ