JPS5630336A - Multipath detecting method - Google Patents

Multipath detecting method

Info

Publication number
JPS5630336A
JPS5630336A JP10522679A JP10522679A JPS5630336A JP S5630336 A JPS5630336 A JP S5630336A JP 10522679 A JP10522679 A JP 10522679A JP 10522679 A JP10522679 A JP 10522679A JP S5630336 A JPS5630336 A JP S5630336A
Authority
JP
Japan
Prior art keywords
multipath noise
band
detectors
wave
multipath
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.)
Pending
Application number
JP10522679A
Other languages
Japanese (ja)
Inventor
Shigeki Takeda
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP10522679A priority Critical patent/JPS5630336A/en
Publication of JPS5630336A publication Critical patent/JPS5630336A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
    • H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
    • H04H40/72—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving for noise suppression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Noise Elimination (AREA)

Abstract

PURPOSE:To detect a multipath noise at a high speed without reference to the intensity of an electric field and that of the multipath noise by detecting the multipath noise by a difference in electric power between upper and lower side-band waves in a multipath noise detecting method. CONSTITUTION:An FM wave applied to input terminal 1 is distributed by distributor 2, whose outputs are applied to detectors 5 and 6 by way of bank-pass filter 3 that permits an upper side-band wave to pass through it and a band-pass filter that passes a lower side-band wave. In proportion to electric power values of the applied signals, detectors 5 and 6 generate signal voltages, which are compared by comparator 7, and consequently when detectors 5 and 6 differ in output, namely, when a multipath noise exists, both the outputs are difference, so that the output of comparator 7 will appear. Therefore, since the multipath noise can be detected at a high speed, this method is suitable for a mobile radio receiver.
JP10522679A 1979-08-18 1979-08-18 Multipath detecting method Pending JPS5630336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10522679A JPS5630336A (en) 1979-08-18 1979-08-18 Multipath detecting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10522679A JPS5630336A (en) 1979-08-18 1979-08-18 Multipath detecting method

Publications (1)

Publication Number Publication Date
JPS5630336A true JPS5630336A (en) 1981-03-26

Family

ID=14401744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10522679A Pending JPS5630336A (en) 1979-08-18 1979-08-18 Multipath detecting method

Country Status (1)

Country Link
JP (1) JPS5630336A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55100336A (en) * 1979-01-26 1980-07-31 Nitto Chem Ind Co Ltd Preparation of ester from nitrile
EP1408617A1 (en) * 2002-10-07 2004-04-14 Pioneer Corporation Signal receiving method and apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55100336A (en) * 1979-01-26 1980-07-31 Nitto Chem Ind Co Ltd Preparation of ester from nitrile
JPS6136737B2 (en) * 1979-01-26 1986-08-20 Nitto Chemical Industry Co Ltd
EP1408617A1 (en) * 2002-10-07 2004-04-14 Pioneer Corporation Signal receiving method and apparatus

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