JPS55149544A - Time sharing diversity receiver - Google Patents

Time sharing diversity receiver

Info

Publication number
JPS55149544A
JPS55149544A JP5724379A JP5724379A JPS55149544A JP S55149544 A JPS55149544 A JP S55149544A JP 5724379 A JP5724379 A JP 5724379A JP 5724379 A JP5724379 A JP 5724379A JP S55149544 A JPS55149544 A JP S55149544A
Authority
JP
Japan
Prior art keywords
antenna
receiver
antennas
over
tau
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
JP5724379A
Other languages
Japanese (ja)
Other versions
JPS6357972B2 (en
Inventor
Shinichi Otani
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
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5724379A priority Critical patent/JPS55149544A/en
Publication of JPS55149544A publication Critical patent/JPS55149544A/en
Publication of JPS6357972B2 publication Critical patent/JPS6357972B2/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
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
    • H04B7/0822—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection according to predefined selection scheme

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)

Abstract

PURPOSE:To assure the S/N obtained from the antenna in maximum reception electric field, by switching a plurality of antennas in the sampling speed of the Nyquist or more, without great change in the constitution of the receiver. CONSTITUTION:The antenna change-over device 2 is provided at the prestage of the SSB receiver 3, and the changing-over speed, connecting time, and selection voltage waveform are controlled with the antenna change-over controller 4 so that a given conditional equation can be satisfied for a plurality of antennas 11-1n. The specified conditional equation can be satisfied in connecting the n-th antenna 1n to the receiver 3. That is, T<=1/2fm, tau=T/n, where; T is the repetitive period of the control voltage, fm is the maximum frequency of the base band signal, tau is the applied time (width) of the control voltage (pulse), and n is the number of antennas. Thus, normal demodulation for the reception signal is enabled.
JP5724379A 1979-05-10 1979-05-10 Time sharing diversity receiver Granted JPS55149544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5724379A JPS55149544A (en) 1979-05-10 1979-05-10 Time sharing diversity receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5724379A JPS55149544A (en) 1979-05-10 1979-05-10 Time sharing diversity receiver

Publications (2)

Publication Number Publication Date
JPS55149544A true JPS55149544A (en) 1980-11-20
JPS6357972B2 JPS6357972B2 (en) 1988-11-14

Family

ID=13050084

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5724379A Granted JPS55149544A (en) 1979-05-10 1979-05-10 Time sharing diversity receiver

Country Status (1)

Country Link
JP (1) JPS55149544A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63318827A (en) * 1987-06-22 1988-12-27 Matsushita Electric Works Ltd Radio equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH081429U (en) * 1990-10-22 1996-10-01 五郎 松田 Car visor amulet case

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5087516A (en) * 1973-12-05 1975-07-14

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5087516A (en) * 1973-12-05 1975-07-14

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63318827A (en) * 1987-06-22 1988-12-27 Matsushita Electric Works Ltd Radio equipment

Also Published As

Publication number Publication date
JPS6357972B2 (en) 1988-11-14

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