KR970078223A - Direct spread communication device using OQPSK method - Google Patents

Direct spread communication device using OQPSK method Download PDF

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Publication number
KR970078223A
KR970078223A KR1019960019051A KR19960019051A KR970078223A KR 970078223 A KR970078223 A KR 970078223A KR 1019960019051 A KR1019960019051 A KR 1019960019051A KR 19960019051 A KR19960019051 A KR 19960019051A KR 970078223 A KR970078223 A KR 970078223A
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South Korea
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data
channel
offset
spreading code
transmission
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KR1019960019051A
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Korean (ko)
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KR0167098B1 (en
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이장환
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배순훈
대우전자 주식회사
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems

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

Abstract

본 발명은 OQPSK방식을 이용한 직접확산통신장치에 관한 것으로, 전송 대상의 데이터에 대해 소정의 확신 부호를 발생하여 합성하는 송신확산부호합성수단(20,22)과, 상기 확산부호와 합성된 전송데이터를 I,Q채널의 데이터로 병렬변환하는 병렬변환수단(24), 상기 병렬변환된 Q채널의 데이터를 소정의 오프셋위상으로 딜레이 시키는 제1오프셋딜레이수단(26), 상기 I,Q채널의 데이터에 대해 위상이동을 실행하는 송신위상이동수단(28,30,32,34), 상기 위상이동된 I,Q채널의 데이터를 가산하여 채널(40)을 통해 전송시키는 가산수단(36), 상기 채널(40)을 통해 수신받은 I,Q채널의 데이터에 대해 위상 이동을 실행하는 수신위상이동수단(42,44,46,48), 상기 데이터심벌에 대한 타이밍오류를 복구하는 심벌타이밍복구수단(50), 상기 수신받은 I,Q채널의 데이터의 드레숄드치를 각각 검출하는 드레숄드검출수단(52,54), 상기 드레숄드치가 검출된 I채널의 데이터를 상기 제1오프셋딜레이수단(26)과 동일한 소정의 오프셋위상으로 딜레이시키는 제2오프셋딜레이수단(56), 상기 오프셋 딜레이된 I채널의 데이터와 Q채널의 데이터를 직렬데이터로 변환하는 직렬변환수단(58) 및, 상기 직렬변환된 수신데이터에 상기 송신확산부호합성수단(20,22)과 동일한 소정의 확산부호를 발생하여 합성하는 수신확산부호합성수단(60,62)을 구비하여 구성된 것을 특징으로 한다.The present invention relates to a direct spread communication device using the OQPSK method, comprising transmission spreading code synthesizing means (20, 22) for generating and synthesizing a predetermined confidence code for data to be transmitted, and transmission data synthesized with the spreading code. Parallel conversion means 24 for converting the data into I and Q channel data in parallel, first offset delay means 26 for delaying the data of the parallel converted Q channel to a predetermined offset phase, and the data of the I and Q channel data. Transmission phase shifting means (28, 30, 32, 34) for performing phase shift with respect to the channel; adding means (36) for adding data of the phase shifted I, Q channels and transmitting them through the channel (40); Receive phase shifting means (42,44,46,48) for performing phase shift on the data of the I, Q channel received through (40), and symbol timing recovery means (50) for recovering timing error for the data symbol. , The threshold value of the received I, Q channel data Threshold detection means 52 and 54 for detecting each other, and second offset delay means 56 for delaying the data of the I channel from which the threshold value is detected to the same offset phase as that of the first offset delay means 26. And serial conversion means 58 for converting the offset delayed I-channel data and the Q-channel data into serial data, and the same as the transmission diffusion code combining means 20, 22 for the serialized received data. Characterized in that it comprises a receiving diffusion code combining means (60, 62) for generating and synthesizing a spreading code.

Description

OQPSK 방식을 이용한 직접확산통신장치Direct spread communication device using OQPSK method

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

제2도는 본 발명에 따른 OQPSK 방식을 이용한 직접확산통신장치를 나타낸 블럭구성도, 제3도는 본 발명의 바람직한 실시예에 따라 병렬변환된 I채널과 Q채널의 데이터에 대해 엔벨로프변이(Envelope Fluctuation)가 상쇄된 상태를 나타낸 도면이다.2 is a block diagram showing a direct spread communication device using the OQPSK scheme according to the present invention, and FIG. 3 is an envelope fluctuation for the data of the I-channel and the Q-channel converted in parallel according to the preferred embodiment of the present invention. Is a view showing a canceled state.

Claims (1)

전송대상의 데이터에 대해 소정의 확산부호를 발생하여 합성하는 송신확산부호합성수단(20,22)과, 상기 확산부호와 합성된 전송데이터를 I,Q채널의 데이터로 병렬변환하는 병렬변환수단(24), 상기 병렬변환된 Q채널의 데이터를 소정의 오프셋위상으로 딜레이시키는 제1오프셋딜레이수단(26), 상기 I,Q채널의 데이터에 대해 위상이동을 실행하는 송신위상이동수단(28,30,32,34), 상기 위상이동된 I,Q채널의 데이터를 가산하여 채널(40)을 통해 전송시키는 가산수단(36), 상기 채널(40)을 통해 수신받은 I,Q채널의 데이터에 대해 위상이동을 실행하는 수신위상이동수단(42,44,46,48), 상기 데이터심벌에 대한 타이밍오류를 복구하는 심벌타이밍복구수단(50), 상기 수신받은 I,Q채널의 데이터의 드레숄드치를 각각 검출하는 드레숄드검출수단(52,54), 상기 드레숄드치가 검출된 I채널의 데이터를 상기 제1오프셋딜레이수단(26)과 동일한 소정의 오프셋위상으로 딜레이시키는 제2오프셋딜레이수단(56), 상기 오프셋딜레이된 I채널의 데이터와 Q채널의 데이터를 직렬데이터로 변환하는 직렬변환수단(58) 및, 상기 직렬변환된 수신데이터에 상기 송신확산부호합성수단(20,22)과 동일한 소정의 확산부호를 발생하여 합성하는 수신확산부호합성수단(60,62)을 구비하여 구성된 것을 특징으로 하는 OQPSK 방식을 이용한 직접확산통신장치.Transmission spreading code synthesizing means (20,22) for generating and synthesizing a predetermined spreading code for the data to be transmitted, and parallel converting means for converting the spreading data synthesized with the spreading code into data of I and Q channels in parallel ( 24, first offset delay means 26 for delaying the data of the parallel-converted Q channel to a predetermined offset phase, and transmission phase shift means 28, 30 for performing phase shift on the data of the I and Q channels. 32, 34, an adder 36 for adding data of the phase shifted I, Q channels and transmitting them through the channel 40, and for the data of the I, Q channels received through the channel 40. Receive phase shift means (42, 44, 46, 48) for performing phase shift, symbol timing recovery means (50) for recovering timing error for the data symbol, and threshold values of the received I, Q channel data. The threshold detection means 52 and 54 which detect, respectively, and the threshold value detect Second offset delay means 56 for delaying the data of the I channel to the same offset phase as the first offset delay means 26, and converting the data of the offset delayed I channel and the Q channel data into serial data. Serial conversion means 58, and reception spreading code combining means 60, 62 for generating and synthesizing a predetermined spreading code identical to the transmission spreading code combining means 20,22 to the serialized received data. Direct diffusion communication device using the OQPSK method, characterized in that configured. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960019051A 1996-05-31 1996-05-31 Direct sequence communication apparatus by using opqsk form KR0167098B1 (en)

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KR1019960019051A KR0167098B1 (en) 1996-05-31 1996-05-31 Direct sequence communication apparatus by using opqsk form

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KR970078223A true KR970078223A (en) 1997-12-12
KR0167098B1 KR0167098B1 (en) 1999-02-01

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