TW355749B - Pyramid approximation envelope detection method and circuit this invention applies pyramid approximation in envelope detection method and designs a circuit for it - Google Patents

Pyramid approximation envelope detection method and circuit this invention applies pyramid approximation in envelope detection method and designs a circuit for it

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Publication number
TW355749B
TW355749B TW086119678A TW86119678A TW355749B TW 355749 B TW355749 B TW 355749B TW 086119678 A TW086119678 A TW 086119678A TW 86119678 A TW86119678 A TW 86119678A TW 355749 B TW355749 B TW 355749B
Authority
TW
Taiwan
Prior art keywords
circuit
envelope detection
detection method
pyramid
approximation
Prior art date
Application number
TW086119678A
Other languages
Chinese (zh)
Inventor
Yu-Min Ye
Original Assignee
Chung-Shan Institute Of Science And Tech
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 Chung-Shan Institute Of Science And Tech filed Critical Chung-Shan Institute Of Science And Tech
Priority to TW086119678A priority Critical patent/TW355749B/en
Application granted granted Critical
Publication of TW355749B publication Critical patent/TW355749B/en
Priority to TW086119678A priority patent/TW461968B/en

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  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Image Processing (AREA)

Abstract

A pyramid approximation envelope detection method and circuit, especially the envelope detection used in wideband communication, receiver demodulation and wave generation; this method relies on pyramid approximation to simplify circuit structure in cost reduction, while limiting maximum error within 0.6%; the main equation for the summed square root value (Z) of the envelope detection are approximated by six facets of the pyramid, each containing the origin and at 45 degrees with the horizontal plane; the X, Y and summed square root value (Z) can thus easily be obtained; the corresponding circuit comprises only absolute-value circuit, max/min-value circuit, digital comparator, encoder, small-capacity ROM and a multiplier.
TW086119678A 1997-12-24 1997-12-24 Pyramid approximation envelope detection method and circuit this invention applies pyramid approximation in envelope detection method and designs a circuit for it TW355749B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW086119678A TW355749B (en) 1997-12-24 1997-12-24 Pyramid approximation envelope detection method and circuit this invention applies pyramid approximation in envelope detection method and designs a circuit for it
TW086119678A TW461968B (en) 1997-12-24 1999-10-25 Pyramid approximation wave-packet detection method and circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW086119678A TW355749B (en) 1997-12-24 1997-12-24 Pyramid approximation envelope detection method and circuit this invention applies pyramid approximation in envelope detection method and designs a circuit for it

Publications (1)

Publication Number Publication Date
TW355749B true TW355749B (en) 1999-04-11

Family

ID=21627475

Family Applications (2)

Application Number Title Priority Date Filing Date
TW086119678A TW355749B (en) 1997-12-24 1997-12-24 Pyramid approximation envelope detection method and circuit this invention applies pyramid approximation in envelope detection method and designs a circuit for it
TW086119678A TW461968B (en) 1997-12-24 1999-10-25 Pyramid approximation wave-packet detection method and circuit

Family Applications After (1)

Application Number Title Priority Date Filing Date
TW086119678A TW461968B (en) 1997-12-24 1999-10-25 Pyramid approximation wave-packet detection method and circuit

Country Status (1)

Country Link
TW (2) TW355749B (en)

Also Published As

Publication number Publication date
TW461968B (en) 2001-11-01

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