JPH0134351B2 - - Google Patents

Info

Publication number
JPH0134351B2
JPH0134351B2 JP57053921A JP5392182A JPH0134351B2 JP H0134351 B2 JPH0134351 B2 JP H0134351B2 JP 57053921 A JP57053921 A JP 57053921A JP 5392182 A JP5392182 A JP 5392182A JP H0134351 B2 JPH0134351 B2 JP H0134351B2
Authority
JP
Japan
Prior art keywords
signal
detector
output
value
noise power
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
JP57053921A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58172559A (ja
Inventor
Tatsuo Watanabe
Norihisa Ookawa
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
Priority to JP57053921A priority Critical patent/JPS58172559A/ja
Priority to US06/472,292 priority patent/US4553086A/en
Priority to CA000423045A priority patent/CA1191611A/en
Publication of JPS58172559A publication Critical patent/JPS58172559A/ja
Publication of JPH0134351B2 publication Critical patent/JPH0134351B2/ja
Granted 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)
JP57053921A 1982-04-02 1982-04-02 信号電力対雑音電力比測定方式 Granted JPS58172559A (ja)

Priority Applications (3)

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
US06/472,292 US4553086A (en) 1982-04-02 1983-03-04 Carrier power to noise power ratio measuring system for TDMA signals
CA000423045A CA1191611A (en) 1982-04-02 1983-03-07 Carrier power to noise power ratio measuring system

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
JPS58172559A JPS58172559A (ja) 1983-10-11
JPH0134351B2 true JPH0134351B2 (OSRAM) 1989-07-19

Family

ID=12956176

Family Applications (1)

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

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
CA1191611A (en) 1985-08-06
US4553086A (en) 1985-11-12
JPS58172559A (ja) 1983-10-11

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