CA1191611A - Carrier power to noise power ratio measuring system - Google Patents

Carrier power to noise power ratio measuring system

Info

Publication number
CA1191611A
CA1191611A CA000423045A CA423045A CA1191611A CA 1191611 A CA1191611 A CA 1191611A CA 000423045 A CA000423045 A CA 000423045A CA 423045 A CA423045 A CA 423045A CA 1191611 A CA1191611 A CA 1191611A
Authority
CA
Canada
Prior art keywords
signal
detector
noise
noise power
power ratio
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
Application number
CA000423045A
Other languages
English (en)
French (fr)
Inventor
Tatsuo Watanabe
Michihisa Ohkawa
Toshio Mizuno
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.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
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 Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Application granted granted Critical
Publication of CA1191611A publication Critical patent/CA1191611A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/26—Measuring noise figure; Measuring signal-to-noise ratio

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
CA000423045A 1982-04-02 1983-03-07 Carrier power to noise power ratio measuring system Expired CA1191611A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP57053921A JPS58172559A (ja) 1982-04-02 1982-04-02 信号電力対雑音電力比測定方式
JP53921/82 1982-04-02

Publications (1)

Publication Number Publication Date
CA1191611A true CA1191611A (en) 1985-08-06

Family

ID=12956176

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000423045A Expired CA1191611A (en) 1982-04-02 1983-03-07 Carrier power to noise power ratio measuring system

Country Status (3)

Country Link
US (1) US4553086A (OSRAM)
JP (1) JPS58172559A (OSRAM)
CA (1) CA1191611A (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6195635A (ja) * 1984-10-16 1986-05-14 Nec Corp Ｃｎ比測定回路
US4806845A (en) * 1985-05-07 1989-02-21 Toyota Jidosha Kabushiki Kaisha System for measuring and generating electric noise
US5524009A (en) * 1995-06-07 1996-06-04 Nokia Mobile Phones Ltd. Fast AGC setting using RSS (I) measurement procedure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3122704A (en) * 1960-09-27 1964-02-25 William H Jones Signal-to-noise ratio indicator
US3350643A (en) * 1965-07-15 1967-10-31 James E Webb Signal-to-noise ratio estimating by taking ratio of mean and standard deviation of integrated signal samples

Also Published As

Publication number Publication date
US4553086A (en) 1985-11-12
JPH0134351B2 (OSRAM) 1989-07-19
JPS58172559A (ja) 1983-10-11

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry