KR970031626A - Hilbert Transform SSB Generator - Google Patents

Hilbert Transform SSB Generator Download PDF

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Publication number
KR970031626A
KR970031626A KR1019950045011A KR19950045011A KR970031626A KR 970031626 A KR970031626 A KR 970031626A KR 1019950045011 A KR1019950045011 A KR 1019950045011A KR 19950045011 A KR19950045011 A KR 19950045011A KR 970031626 A KR970031626 A KR 970031626A
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KR
South Korea
Prior art keywords
signal
digital
analog
carrier
output
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KR1019950045011A
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Korean (ko)
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KR0159200B1 (en
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임명섭
김대호
박형숙
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양승택
한국전자통신연구원
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Publication of KR970031626A publication Critical patent/KR970031626A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

본 발명은 룩업테이블을 이용한 힐버트 트랜스폼 측파대역신호 발생기에 관한 것이다. 상기한 바와 같은 목적을 달성하기 위하여 본 발명은, 입력의 고주파 성분을 제거하는 필터 수단; 상기 필터 수단에서 출력되는 펄스를 입력받아 펄스의 크기에 상응하는 어드레스를 발생하는 어드레스 발생 수단; 상기 어드레스 발생 수단에서 출력되는 신호에 따라 입력신호와 동일 위상 디지탈 신호와 90° 위상천이된 디지탈 신호를 출력하는 기억 수단을 포함하는 것을 특징으로 하여, 전송효율이 높은 측파대역신호 전송기법을 용이하게 설계할 수 있다는 효과가 있다.The present invention relates to a Hilbert transform side waveband signal generator using a lookup table. The present invention to achieve the above object, the filter means for removing the high frequency components of the input; Address generating means for receiving a pulse output from the filter means and generating an address corresponding to the magnitude of the pulse; And a storage means for outputting the same phase digital signal as the input signal and the digital signal shifted by 90 ° according to the signal output from the address generating means, thereby facilitating a high transmission efficiency side waveband signal transmission technique. The effect is that it can be designed.

Description

힐버트 트랜스품 측파대역신호 발생기(Hilbert Transform SSB Generator)Hilbert Transform SSB Generator

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 의한 힐버트 트랜스폼 측파대역신호 발생기의 구성도.2 is a block diagram of a Hilbert transform side waveband signal generator according to the present invention.

Claims (2)

입력되는 디지탈 신호의 주파수 성분 중에서 고주파 성분을 제거하여, 폭은 균일하며 크기가 다른 펄스열을 출력하는 필터수단; 상기 필터 수단에 연결되어, 상기 필터 수단에서 출력되는 펄스를 입력받아 펄스의 크기에 상응하는 어드레스를 발생하는 어드레스 발생 수단; 상기 필터 수단과 어드레스 발생 수단에 연결되어, 상기 필터 수단과 어드레스 발생 수단에 클락을 제공하는 클락 발생 수단; 상기 어드레스 발생 수단에서 출력되는 신호에 따라 입력신호와 동일 위상 디지탈 신호와 90°위상천이된 디지탈 신호를 출력하는 기억 수단; 상기 기억 수단에서 출력되는 디지탈 신호를 아날로그 신호로 변환하는 디지탈/아날로그 변환 수단; 상기 디지탈/아날로그 변환 수단에서 출력되는 신호를 변조하기 위한 반송파를 제공하는 반송파 발진 수단; 상기 반송파 발진 수단에서 출력되는 반송파의 위상을 90° 천이하기 위한 위상천이 수단; 상기 디지탈/아날로그 변환 수단과 반송파 발진 수단에 연결되어, 상기 디지탈/아날로그 변환 수단에서 출력되는 입력 신호와의 동일 위상에 해당하는 신호와 반송파 신호를 곱하는 역할을 하는 제1 곱셈 수단; 상기 디지탈/아날로그 변환 수단과 반송파 발진수단에 연결되어, 상기 디지탈/아날로그 변환 수단에서 출력되는 입력신호와 90°위상천이된 신호에 해당되는 신호와 반송파 신호의 90°위상천이된 신호를 곱하는 역할을 하는 제2 곱셈수단; 및 상기 제1 곱셈 수단과 제2 곱셈 수단의 출력 신호를 가산하는 가산 수단을 포함하는 것을 특징으로 하는 힐버트 트랜스폼 측파대역신호 발생기.Filter means for removing a high frequency component from frequency components of an input digital signal and outputting a pulse string having a uniform width and a different magnitude; Address generation means connected to the filter means for receiving a pulse output from the filter means and generating an address corresponding to the magnitude of the pulse; Clock generation means coupled to said filter means and address generation means for providing a clock to said filter means and address generation means; Storage means for outputting a digital signal shifted 90 degrees out of phase with the input signal in accordance with the signal output from the address generating means; Digital / analog conversion means for converting the digital signal output from the storage means into an analog signal; Carrier oscillating means for providing a carrier for modulating a signal output from said digital / analog conversion means; Phase shifting means for shifting the phase of the carrier wave output from the carrier oscillating means by 90 degrees; First multiplication means connected to the digital / analog converting means and the carrier oscillating means and multiplying a carrier signal with a signal corresponding to an in-phase with an input signal output from the digital / analog converting means; It is connected to the digital / analog converting means and the carrier oscillating means, and serves to multiply the signal corresponding to the 90 ° phase shifted signal and the signal corresponding to the 90 ° phase shifted signal output from the digital / analog converting means. Second multiplication means; And adding means for adding output signals of the first multiplication means and the second multiplication means. 제1항에 있어서, 상기 필터수단에 연결되어, 입력되는 아날로그 신호를 소정의 속도로 표본화하여 디지탈 신호를 상기 필터수단에 제공하는 아날로그/디지탈 변환 수단을 부가하는 것을 특징으로 하는 힐버트 트랜스폼 측파대역신호 발생기.2. The Hilbert transform side band according to claim 1, further comprising an analog / digital converting means connected to said filter means for sampling an input analog signal at a predetermined rate and providing a digital signal to said filter means. Signal generator. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950045011A 1995-11-29 1995-11-29 Hilbert transform ssb generator KR0159200B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950045011A KR0159200B1 (en) 1995-11-29 1995-11-29 Hilbert transform ssb generator

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Application Number Priority Date Filing Date Title
KR1019950045011A KR0159200B1 (en) 1995-11-29 1995-11-29 Hilbert transform ssb generator

Publications (2)

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KR970031626A true KR970031626A (en) 1997-06-26
KR0159200B1 KR0159200B1 (en) 1998-12-01

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