JPS55161428A - Multiple propagation path distortion - Google Patents

Multiple propagation path distortion

Info

Publication number
JPS55161428A
JPS55161428A JP6885179A JP6885179A JPS55161428A JP S55161428 A JPS55161428 A JP S55161428A JP 6885179 A JP6885179 A JP 6885179A JP 6885179 A JP6885179 A JP 6885179A JP S55161428 A JPS55161428 A JP S55161428A
Authority
JP
Japan
Prior art keywords
signal
circuit
phir
phio
waveform memory
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
JP6885179A
Other languages
Japanese (ja)
Inventor
Hisashi Yamada
Masaru Sakurai
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6885179A priority Critical patent/JPS55161428A/en
Publication of JPS55161428A publication Critical patent/JPS55161428A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To automate a distortion eliminating unit, by obtaining an autocorrelation signal of the signal which is subjected to multiple propagation path distortion and by inspecting the property of the correlation signal and by rewriting the correlation signal, which is stored in a waveform memory, on a basis of this inspection result. CONSTITUTION:The receiving signal is input to correlator 1 through signal converting circuit 9. Circuit 9 performs the signal processing without loss of the law of superposition of the signal. Input signal S(t) of correlator 1 is sampled in the section of NT and is stored in waveform memory 2 as sample values Si(i O-N). Correlation operating circuit 3 calculates successively sample values phiR(R O-N) of autocorrelation signal phi(t) in section NT of S(t) on a basis of data of Si. Comparing circuit 5 compares the value of phiO with threshold level A determined previously. Comparing circuit 6 compares constant B with the value of R at the time when phiR becomes phiO/2. In case of phiO>=A and nW<B, contents of the waveform memory are rewritten by data phiR.
JP6885179A 1979-06-04 1979-06-04 Multiple propagation path distortion Pending JPS55161428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6885179A JPS55161428A (en) 1979-06-04 1979-06-04 Multiple propagation path distortion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6885179A JPS55161428A (en) 1979-06-04 1979-06-04 Multiple propagation path distortion

Publications (1)

Publication Number Publication Date
JPS55161428A true JPS55161428A (en) 1980-12-16

Family

ID=13385579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6885179A Pending JPS55161428A (en) 1979-06-04 1979-06-04 Multiple propagation path distortion

Country Status (1)

Country Link
JP (1) JPS55161428A (en)

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