KR970078064A - Pseudo-noise control device for digital DL - Google Patents

Pseudo-noise control device for digital DL Download PDF

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Publication number
KR970078064A
KR970078064A KR1019960019409A KR19960019409A KR970078064A KR 970078064 A KR970078064 A KR 970078064A KR 1019960019409 A KR1019960019409 A KR 1019960019409A KR 19960019409 A KR19960019409 A KR 19960019409A KR 970078064 A KR970078064 A KR 970078064A
Authority
KR
South Korea
Prior art keywords
noise frequency
pseudo noise
signal
local oscillation
phase
Prior art date
Application number
KR1019960019409A
Other languages
Korean (ko)
Inventor
김대순
천영선
Original Assignee
배순훈
대우전자 주식회사
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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019960019409A priority Critical patent/KR970078064A/en
Priority to GB9704771A priority patent/GB2313750A/en
Priority to JP9060764A priority patent/JPH1013307A/en
Publication of KR970078064A publication Critical patent/KR970078064A/en

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    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop

Abstract

본 발명은 디지탈 DLL용 의사 잡음 발생 제어장치에 관한 것으로, 의사 잡음 주파수 대역으로 확산된 음성신호를 수신하면 국부 발진 온타임 의사 잡음 주파수 신호와의 상관 기능에 의해 역확산을 수행함으로서 상기 의사 잡음 주파수 대역으로 확산된 음성신호로부터 기저 대역의 음성신호를 검출하는 DLL장치에 있어서, 상기 의사 잡음 주파수 대역으로 확산된 음성신호보다 기설정 위상만큼 앞선 신호가 역확산되어 검출된 기저 대역의 제1음성 신호와, 상기 의사 잡음 주파수 대역으로 확산된 음성 신호보다 기설정 위상만큼 뒤진 신호가 역확산되어 검출된 기저 대역의 제2음성신호간의 차에 대응되는 디지탈 2진 부호를 생성하는 VCE(110), 상기 VCE(110)의 디지탈 2진 부호값을 기 설정치와 비교하여 비교 결과에 따라 상기 국부 발진 온타임 의사 잡음 주파수 신호의 위상 어드벤스, 위상 리타드 또는 위상온 상태를 판정하는 판정부(120), 상기 판정부(120)의 판정 결과에 따라 상기 국부 발진 온타임 의사 잡음 주파수 신호의 위상 편이를 제어하는 제어부(130), 상기 제어부(130)의 제어에 의해 위상 편이된 국부 발진 온타임 의사 잡음 주파수 신호를 발생하되, 실제 국부 발진 온타임 의사 잡음 주파수 신호에 대해 1칩 구간 이전의 국부 발진 의사 잡음 주파수 신호를 발생하는 의사 잡음 주파수 발생부(140), 상기 의사 잡음 주파수 발생부에서 출력한 국부 발진 온타임 의사 잡음 주파수 신호를 1칩 구간동안 지연시켜, 상기 의사 잡음 주파수 대역으로 확산된 음성신호와의 상관 기능에 작용되도록 하는 지연부(150b)를 구비하여 구성함을 특징으로 한다.The present invention relates to a pseudo noise generation control device for a digital DLL. When receiving a speech signal spread in a pseudo noise frequency band, the pseudo noise frequency is performed by despreading by a correlation function with a local oscillation on time pseudo noise frequency signal. In a DLL device for detecting a baseband voice signal from a voice signal spread in a band, the baseband first voice signal detected by despreading by a predetermined phase prior to the voice signal spread in the pseudo noise frequency band And a VCE (110) for generating a digital binary code corresponding to the difference between the detected second-band speech signals of the baseband by despreading a signal that is a predetermined phase behind the speech signal spread in the pseudo-noise frequency band. Compare the digital binary code value of the VCE 110 with a preset value and according to the comparison result, the local oscillation on time pseudo noise A determination unit 120 for determining a phase advance, phase retard, or phase-on state of the wave signal, and a control unit for controlling a phase shift of the local oscillation on-time pseudo noise frequency signal according to the determination result of the determination unit 120 ( 130, generating a local oscillation on-time pseudo noise frequency signal shifted in phase by the control of the controller 130, and outputting a local oscillation pseudo-noise frequency signal one chip before the actual local oscillation on-time pseudo noise frequency signal. The generated pseudo noise frequency generator 140 delays the local oscillation on-time pseudo noise frequency signal outputted from the pseudo noise frequency generator for one chip, and correlates with the speech signal spread in the pseudo noise frequency band. It is characterized by comprising a delay unit 150b to act on.

Description

디지탈 디엘엘용 의사 잡음 발생 제어장치Pseudo-Noise Control for Digital DL

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

제2도는 본 발명의 바람직한 실시예를 나타내는 상세 구성도.2 is a detailed block diagram showing a preferred embodiment of the present invention.

Claims (1)

의사 잡음 주파수 대역으로 확산된 음성신호를 수신하면 국부 발진 온타임 의사 잡음 주파수 신호와의 상관 기능에 의해 역확산을 수행함으로서 상기 의사 잡음 주파수 대역으로 확산된 음성신호로부터 기저 대역의 음성신호를 검출하는 DLL장치에 있어서, 상기 의사 잡음 주파수 대역으로 확산된 음성신호보다 기설정 위상만큼 앞선 신호가 역확산되어 검출된 기저 대역의 제1음성 신호와, 상기 의사 잡음 주파수 대역으로 확산된 음성 신호보다 기설정 위상만큼 뒤진 신호가 역확산되어 검출된 기저 대역의 제2음성신호간의 차에 대응되는 디지탈 2진 부호를 생성하는 VCE(110), 상기 VCE(110)의 디지탈 2진 부호값을 기 설정치와 비교하여 비교 결과에 따라 상기 국부 발진 온타임 의사 잡음 주파수 신호의 위상 어드벤스, 위상 리타드 또는 위상 온 상태를 판정하는 판정부(120), 상기 판정부(120)의 판정 결과에 따라 상기 국부 발진 온타임 의사 잡음 주파수 신호의 위상 편이를 제어하는 제어부(130), 상기 제어부(130)의 제어에 의해 위상 편이된 국부 발진 온타임 의사 잡음 주파수 신호를 발생하되, 실제 국부 발진 온타임 의사 잡음 주파수 신호에 대해 1칩 구간 이전의 국부 발진 의사 잡음 주파수 신호를 발생하는 의사 잡음 주파수 발생부(140), 상기 의사 잡음 주파수 발생부에서 출력한 국부 발진 온타임 의사 잡음 주파수 신호를 1칩 구간동안 지연시켜, 상기 의사 잡음 주파수 대역으로 확산된 음성신호와의 상관 기능에 작용되도록 하는 지연부(150b)를 구비하여 구성하는 디지탈 DLL용 의사 잡음 발생 제어장치.When receiving a speech signal spread in a pseudo noise frequency band, the base oscillation signal is despread by a correlation function with a local oscillation on-time pseudo noise frequency signal to detect a baseband speech signal from the speech signal spread in the pseudo noise frequency band. In the DLL device, the baseband first audio signal detected by despreading by a predetermined phase by a predetermined phase prior to the speech signal spread in the pseudo noise frequency band and the preset speech signal by the speech signal spread in the pseudo noise frequency band Compare the digital binary code value of the VCE 110 and the VCE 110 to generate a digital binary code corresponding to the difference between the detected second baseband signal by despreading the signal that is delayed by the phase. Phase phase, phase retard or phase-on state of the local oscillation on-time pseudo-noise frequency signal according to the comparison result A control unit 130 for controlling a phase shift of the local oscillation on-time pseudo noise frequency signal according to a determination result of the determination unit 120, the determination unit 120, and the phase shifted by the control of the control unit 130. A pseudo noise frequency generator 140 generating a local oscillation on-time pseudo noise frequency signal, but generating a local oscillation pseudo-noise frequency signal one chip before the actual local oscillation on-time pseudo noise frequency signal, and the pseudo noise frequency A digital signal comprising a delay unit 150b for delaying the local oscillation on-time pseudo noise frequency signal outputted from the generator for one chip period and acting on a correlation function with the speech signal spread in the pseudo noise frequency band. Pseudo-noise generation control for DLL. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960019409A 1996-05-31 1996-05-31 Pseudo-noise control device for digital DL KR970078064A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019960019409A KR970078064A (en) 1996-05-31 1996-05-31 Pseudo-noise control device for digital DL
GB9704771A GB2313750A (en) 1996-05-31 1997-03-07 Digital delay locked loop
JP9060764A JPH1013307A (en) 1996-05-31 1997-03-14 Digital delay locked loop

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Application Number Priority Date Filing Date Title
KR1019960019409A KR970078064A (en) 1996-05-31 1996-05-31 Pseudo-noise control device for digital DL

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KR970078064A true KR970078064A (en) 1997-12-12

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KR (1) KR970078064A (en)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6549559B2 (en) 1997-12-23 2003-04-15 Koninklijke Philips Electronics N.V. Apparatus and method for locking onto a psuedo-noise code in an IS-95 spread spectrum communications system
US6205167B1 (en) * 1997-12-23 2001-03-20 Philips Electronics North America Corporation Apparatus and method for code tracking in an IS-95 spread spectrum communications system
KR20010091602A (en) * 2000-03-16 2001-10-23 송재인 Selection method for tracking frequency
RU2486672C1 (en) * 2012-02-17 2013-06-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ижевский государственный технический университет имени М.Т. Калашникова" Method of monitoring broadband signal delay and apparatus for realising said method
CN102590787B (en) * 2012-02-29 2013-05-08 北京航空航天大学 Double early-late loop tracking method of spread spectrum receiver

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JP2720076B2 (en) * 1989-07-17 1998-02-25 京セラ株式会社 Automatic calibration device for direct spread spectrum receiver
US5402450A (en) * 1992-01-22 1995-03-28 Trimble Navigation Signal timing synchronizer
DE59308402D1 (en) * 1992-09-29 1998-05-20 Ascom Tech Ag Method for synchronizing a receiver for receiving a data signal spread with a PN code

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JPH1013307A (en) 1998-01-16
GB2313750A (en) 1997-12-03
GB9704771D0 (en) 1997-04-23

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