[go: up one dir, main page]

KR920700494A - Frequency control device and method for digital radio receiver - Google Patents

Frequency control device and method for digital radio receiver

Info

Publication number
KR920700494A
KR920700494A KR1019900702521A KR900702521A KR920700494A KR 920700494 A KR920700494 A KR 920700494A KR 1019900702521 A KR1019900702521 A KR 1019900702521A KR 900702521 A KR900702521 A KR 900702521A KR 920700494 A KR920700494 A KR 920700494A
Authority
KR
South Korea
Prior art keywords
frequency
burst
signal
communication
control signal
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.)
Granted
Application number
KR1019900702521A
Other languages
Korean (ko)
Other versions
KR940006931B1 (en
Inventor
이. 보스 데이비드
에프. 케플러 제임스
Original Assignee
빈센트 죠셉 로너
모토로라 인코포레이티드
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
Priority claimed from US07/331,557 external-priority patent/US4887050A/en
Application filed by 빈센트 죠셉 로너, 모토로라 인코포레이티드 filed Critical 빈센트 죠셉 로너
Publication of KR920700494A publication Critical patent/KR920700494A/en
Application granted granted Critical
Publication of KR940006931B1 publication Critical patent/KR940006931B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/087—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using at least two phase detectors or a frequency and phase detector in the loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
    • H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0057—Closed loops quadrature phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors

Landscapes

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

Abstract

내용 없음No content

Description

디지탈 라디오 수신기용 주파수 제어장치 및 방법Frequency control device and method for digital radio receiver

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명을 활용할 수 있는 TDMA 수신기의 블록도이다,1 is a block diagram of a TDMA receiver that can utilize the present invention.

제2도는 증가 위상 궤도(increaseing phase trajactory) 및 감소 위상 궤도를 위하여 언래핑 과정(unwrapping process)을 도시한다,FIG. 2 shows the unwrapping process for increasing phase trajactory and decreasing phase trajectory.

제3도는 컴퓨터 시뮬레이션 결과를 도시한다.3 shows the computer simulation results.

Claims (11)

후속 통신 버어스트의 라디오 반송파 주파수와 라디오 수신기에 의해 수신된 주파수 차이를 교정 할수 있도록 하기 위하여 버어스트로서 송신된 주파수 교정신호를 사용하는 버어스트 모드의 통신 시스템을 위한 주파수 제어 장치로서, 주파수 교정 신호 버어스트를 수신하고, 또한 가변 주파수 발진기와 통신 버어스트의 라디오 반송파 주파수 사이의 주파수 차이를 가지는 상기 통신 버어스트를 처리하기 위하여 상기 가변 주파수 발진기를 포함하는 수단과, 단리 제어 신호값을 발생시키고, 상기 주파수 차이를 교정할 수 있도록 상기 단일 제어 신호 값을 상기 가변 주파수 발진기에 인가하기 위하여 상기 주파수 교정 신호 버어스트를 수신할 수 있도록 상기 수단에 결합된 수단을 포함하는 주파수 제어 장치.A frequency control signal for a burst mode communication system that uses a frequency correction signal transmitted as a burst to allow correction of a radio carrier frequency of a subsequent communication burst and a frequency difference received by the radio receiver. Means for receiving a burst and for processing said communication burst having a frequency difference between said variable frequency oscillator and said radio carrier frequency of said communication burst, and generating an isolation control signal value, Means coupled to the means for receiving the frequency corrected signal burst to apply the single control signal value to the variable frequency oscillator to correct the frequency difference. 제1항에 있어서, 발진을 위한 상기 수단은 상기 주파수 차이에 연관된 적어도 하나의 위상 진폭을 계산하기 위한 수단을 포함하고, 통신 버어스트를 처리하기 위한 상기 수단은 상기 주파수 교정 신호 버어스트를 I 및 Q구형 주파수 교정 버어스트 신호로 변환하기 위한 수단을 포함하는 주파수 제어 장치.2. The apparatus of claim 1, wherein the means for oscillation comprises means for calculating at least one phase amplitude associated with the frequency difference, and wherein the means for processing a communication burst comprises the steps of: Means for converting into a Q-spherical frequency corrected burst signal. 제2항에 있어서, 발진을 위한 상기 수단은, 소정의 주파수에 의해 적어도 몇개의 상기 I 및 Q구형 주파수 교정 버어스트 신호의 주파수를 번역하기 위한 수단과; I 및 Q 교정 신호 샘플을 발생시키기 위하여 상기 I 및 Q구형 주파수 교정 버어스트 신호을 샘플링하기 위한 수단과; 적어도 몇개의 상기 I 및 Q 교정 신호 샘플로 부터 위상 궤도를 발생시키기 위한 수단, 및 직류 옵셋을 보상하기 위한 수단을 포함하는 주파수 제어장치.3. The apparatus of claim 2, wherein the means for oscillation comprises: means for translating frequencies of at least some of the I and Q spherical frequency corrected burst signals by a predetermined frequency; Means for sampling the I and Q spherical frequency corrected burst signals to generate I and Q corrected signal samples; Means for generating a phase trajectory from at least some of said I and Q calibration signal samples, and means for compensating for a DC offset. 제3항에 있어서, 적어도 하나의 위상 진폭을 계한하기 위한 수단은 Q교정 신호 샘플을 I 교정 신호 샘플로 나눈 몫의 아크탄젠트를 계산하기 위한 수단을 포함하고, 위상 궤도를 발생시키기 위한 상기 수단은 각 주파수 차이를 위한 하나의 단일 제어 신호 값이 유도되는 주파수 차이 대(versus)제어 신호값과 관계를 생성함에 의하여, 아크탄젠트의 제2 계산에 대한 아크탄젠트의 제1 계산의 최소 사각형 선형 맞춤 라인을 계산하기 위한 수단을 포함하는 주파수 제어 장치.4. The apparatus of claim 3, wherein the means for limiting the at least one phase amplitude comprises means for calculating an arc tangent of the quotient of the Q calibration signal sample divided by the I calibration signal sample, the means for generating the phase trajectory. The minimum square linear fit line of the first calculation of arctangent to the second calculation of arctangent by creating a relationship with the frequency difference versus control signal value from which a single control signal value for each frequency difference is derived. Means for calculating the frequency control device. 제1항에 있어서, 발진을 위한 상기 수단은 각 주파수 차이를 위한 하나의 단일 제어 신호값이 유도되는 주파수 차이대 제어 신호 값 관계를 생성하기 위한 수단을 포함하고, 상기 단일 제어 신호값을 발생시키고 상기 주파수 차이를 교정하기 위하여 인가하기 위한 상기 수단이 복수 통신 버어스트 중의 하나의 프레임내에서 상기 단일 제어 신호값을 활용하는 것을 특징으로 하는 주파수 제어 장치.2. The apparatus of claim 1, wherein the means for oscillation comprises means for generating a frequency difference versus control signal value relationship from which a single control signal value for each frequency difference is derived, and generating the single control signal value. And said means for applying to correct said frequency difference utilizes said single control signal value within one frame of a plurality of communication bursts. 라디오용 자동 주파수 조정회로에 있어서, 소정의 정규 주파수에서 신호를 생성하기 위한 발진기 수단, 상기 발진기 수단의 주파수와 통신 신호의 주파수에 대하여 거의 고정된 주파수를 갖는 기준 신호에서 통신 신호를 수신하기 위한 수단, 및 통신 신호의 주파수에서 신호를 생성하기 위한 상기 발진기수단을 유발하기 위하여, 상기 발진기 수단에 대한 교정 신호를 생성하도록 상기 기준 신호에 응답하는 디지탈 수단을 포함하는 라디오용 자동 주파수 조정 회로.An automatic frequency adjusting circuit for a radio, comprising: oscillator means for generating a signal at a predetermined normal frequency, means for receiving a communication signal at a reference signal having a frequency substantially fixed with respect to a frequency of the oscillator means and a communication signal And digital means responsive to said reference signal to generate a calibration signal for said oscillator means for inducing said oscillator means for generating a signal at a frequency of a communication signal. 제6항에 있어서, 교정 신호를 생성하기 위한 수단은 주파수 옵셋의 함수로서 기준 신호의 진폭 변화에 거의 영향 받지 않는 교정값의 계산된 S곡선을 디지탈 발진하기 위한 수단을 포함하는 라디오용 자동 주파수 조정 회로.7. The apparatus of claim 6, wherein the means for generating a calibration signal comprises means for digitally oscillating a calculated S-curve of the calibration value that is substantially unaffected by a change in amplitude of the reference signal as a function of frequency offset. Circuit. 제6항에 있어서, 교정 신호가 10 시스템 프레임내의 한 스텝내의 통신 신호 주파수의 백만부의 1 이내의 신호를 생성하기 위한 발진기 수단을 유발하는 것을 특징으로 하는 라디오용 자동 주파수 조정 회로.7. The automatic frequency adjustment circuit as set forth in claim 6, wherein the calibration signal causes an oscillator means for generating a signal within one million parts of the communication signal frequency in one step in ten system frames. 후속 통신 버어스트 주파수와 라디오 수신기의 수신 주파수 간의 주파수차를 교정 할수 있게 하기 위한 버어스트로서 송신된 주파수 교정 신호를 사용하는 버어스트 모드 라디오 통신 시스템용 수신기를 위한 주파수 제어 방법에 있어서, 주파수 교정 신호 버어스트를 수신하고, 상기 통신 버어스트의 라디오 반송파 주파수와 가변 주파수 발진기 사이에 주파수차를 갖는 통신 버어스트를 처리하는 단, 및 상기 주파수 교정신호 버어스트의 상기 수신에 응답하여 상기 단일 제어 신호 값을 상기 주파수차를 교정하기 위하여 상기 가변 주파수 발진기에 인가할 수 있ㄷ록 단일 제어 신호값을 발진하는 단으로 이루어진 주파수 제어 방법.A frequency control signal for a receiver for a burst mode radio communication system using a frequency correction signal transmitted as a burst to enable correcting a frequency difference between a subsequent communication burst frequency and a reception frequency of the radio receiver. Receiving a burst and processing a communication burst having a frequency difference between the radio carrier frequency of the communication burst and a variable frequency oscillator, and the single control signal value in response to the reception of the frequency correction signal burst. And oscillating a single control signal value to be applied to the variable frequency oscillator to correct the frequency difference. 제9항에 있어서, 통신 버어스트의 상기 처리단이 상기 주파수 교정 신호 버어스트를 I 및 Q구형 주파수 교정 버어스트 신호로 변환하는 단을 포함하고, 적어도 하나의 위상 진폭을 계산하는 상기 단이 Q 교정 신호 샘플을 I 교정 신호 샘플로 나눈 몫의 아크탄젠트를 계산하는 단과, 각 주파수차를 위한 하나의 단일 제어 신호값이 유도되는 주파수차 대 제어 신호 값 관계를 생성함에 의하여, 아크탄젠트의 제1 계산의 아크탄젠트의 제2 계산에 대한 최소 사각형 선형 맞춤 곡선을 계산하는 단을 특징으로 하고, 상기 발진단이; (a)상기 주파수차에 관련된 적어도 하나의 위상 진폭을 계산하는 단, (b)소정의 주파수에 의해 상기 I 및 Q 구형 주파수 교정 버어스트 신호중의 적어도 몇개의 주파수를 번역하는 단, (c) I 및 Q교정 신호 샘플을 발생시키기 위해 상기 I 및 Q구형 주파수 교정 버어스트 신호를 샘플링하는 단, (d)상기 I 및 Q교정 신호 샘플중 적어도 몇개로부터 위상 궤도를 발생시키는 단, 및 (e)직류 옵셋을 보상하는 단으로 이루어지는 버어스트 모드 라디오 통신 시스템용 주파수 제어 방법.10. The apparatus of claim 9, wherein the processing stage of the communication burst includes a stage for converting the frequency corrected signal burst into I and Q spherical frequency corrected burst signals, wherein the stage for calculating at least one phase amplitude is Q. Compute the arc tangent of the quotient of the calibration signal sample divided by the I calibration signal sample, and by generating a frequency difference versus control signal value relationship from which a single control signal value for each frequency difference is derived. Computing a minimum rectangular linear fit curve for the second calculation of the arc tangent of the calculation; (a) calculating at least one phase amplitude related to said frequency difference, (b) translating at least some of said I and Q spherical frequency corrected burst signals by a predetermined frequency, (c) I And sampling the I and Q spherical frequency corrected burst signals to generate Q corrected signal samples, (d) generating a phase trajectory from at least some of the I and Q corrected signal samples, and (e) direct current. A frequency control method for a burst mode radio communication system comprising a stage for compensating for an offset. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900702521A 1989-03-31 1990-02-20 Frequency control device and method for digital wireless receiver Expired - Lifetime KR940006931B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/331,557 US4887050A (en) 1989-03-31 1989-03-31 Frequency control apparatus and method for a digital radio receiver
US331557 1989-03-31
NL9000822 1990-02-20

Publications (2)

Publication Number Publication Date
KR920700494A true KR920700494A (en) 1992-02-19
KR940006931B1 KR940006931B1 (en) 1994-07-29

Family

ID=67528683

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900702521A Expired - Lifetime KR940006931B1 (en) 1989-03-31 1990-02-20 Frequency control device and method for digital wireless receiver

Country Status (1)

Country Link
KR (1) KR940006931B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6861900B2 (en) * 2001-12-27 2005-03-01 Proxim Corporation Fast timing acquisition for multiple radio terminals

Also Published As

Publication number Publication date
KR940006931B1 (en) 1994-07-29

Similar Documents

Publication Publication Date Title
US8259888B2 (en) Method of processing signal data with corrected clock phase offset
US4968968A (en) Transmitter phase and amplitude correction for linear FM systems
EP0647017B1 (en) Synchronization circuit using a high speed digital slip counter
JP2002530985A (en) Frequency generation method and system for wireless devices
DK0770430T3 (en) Method and apparatus for operating ultrasonic power transducers
KR950035391A (en) Digital Residual Sideband (VSB) Detector with Final Intermediate Frequency Carrier at Divisor of Symbol Rate for High-Definition Television Receivers
CA2257238C (en) Dc offset compensation method and apparatus
KR950013060A (en) Broadcast frequency synchronization device and method
GB2335554A (en) Radio synchronisation system
KR920700494A (en) Frequency control device and method for digital radio receiver
US6525577B2 (en) Apparatus and method for reducing skew of a high speed clock signal
MY113907A (en) Hand deviation correction apparatus
MY113714A (en) Synchronized scanning circuit
US5436936A (en) Compensation of a clock operating error
US20050084047A1 (en) Clock signal correcting circuit and communicating apparatus
US4663541A (en) Phase-shift stabilized frequency multiplier
US7349497B1 (en) Receiver circuit
JP2001215283A (en) Seismometer
KR19980020457A (en) Automatic time correction device of digital clock using radio wave and its control method
US6154068A (en) Digital oscillation generator
KR960027467A (en) Apparatus and method for increasing stability of transmission frequency using Costas loop in half-duplex communication system
JPH09186735A (en) Demodulator
KR870011796A (en) Demodulation Phase Era Attenuation Circuit
KR19990015647A (en) Time delay correction device and method
JPH05119170A (en) Method for generating time signal

Legal Events

Date Code Title Description
A201 Request for examination
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19901127

PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 19901127

Comment text: Request for Examination of Application

PG1501 Laying open of application
E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 19930629

Patent event code: PE09021S01D

AMND Amendment
E601 Decision to refuse application
PE0601 Decision on rejection of patent

Patent event date: 19940113

Comment text: Decision to Refuse Application

Patent event code: PE06012S01D

Patent event date: 19930629

Comment text: Notification of reason for refusal

Patent event code: PE06011S01I

J2X1 Appeal (before the patent court)

Free format text: APPEAL AGAINST DECISION TO DECLINE REFUSAL

PJ2001 Appeal

Appeal kind category: Appeal against decision to decline refusal

Decision date: 19941014

Appeal identifier: 1994201000683

Request date: 19940412

PB0901 Examination by re-examination before a trial

Comment text: Request for Trial against Decision on Refusal

Patent event date: 19940412

Patent event code: PB09011R01I

Comment text: Amendment to Specification, etc.

Patent event date: 19930928

Patent event code: PB09011R02I

G160 Decision to publish patent application
PG1605 Publication of application before grant of patent

Comment text: Decision on Publication of Application

Patent event code: PG16051S01I

Patent event date: 19940704

B701 Decision to grant
PB0701 Decision of registration after re-examination before a trial

Patent event date: 19941014

Comment text: Decision to Grant Registration

Patent event code: PB07012S01D

Patent event date: 19940623

Comment text: Transfer of Trial File for Re-examination before a Trial

Patent event code: PB07011S01I

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 19941101

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 19941101

End annual number: 3

Start annual number: 1

PR1001 Payment of annual fee

Payment date: 19970630

Start annual number: 4

End annual number: 4

PR1001 Payment of annual fee

Payment date: 19980629

Start annual number: 5

End annual number: 5

PR1001 Payment of annual fee

Payment date: 19990630

Start annual number: 6

End annual number: 6

PR1001 Payment of annual fee

Payment date: 20000629

Start annual number: 7

End annual number: 7

PR1001 Payment of annual fee

Payment date: 20010707

Start annual number: 8

End annual number: 8

PR1001 Payment of annual fee

Payment date: 20020708

Start annual number: 9

End annual number: 9

PR1001 Payment of annual fee

Payment date: 20030701

Start annual number: 10

End annual number: 10

PR1001 Payment of annual fee

Payment date: 20040701

Start annual number: 11

End annual number: 11

PR1001 Payment of annual fee

Payment date: 20050630

Start annual number: 12

End annual number: 12

PR1001 Payment of annual fee

Payment date: 20060630

Start annual number: 13

End annual number: 13

PR1001 Payment of annual fee

Payment date: 20070702

Start annual number: 14

End annual number: 14

PR1001 Payment of annual fee

Payment date: 20080630

Start annual number: 15

End annual number: 15

FPAY Annual fee payment

Payment date: 20090630

Year of fee payment: 16

PR1001 Payment of annual fee

Payment date: 20090630

Start annual number: 16

End annual number: 16

EXPY Expiration of term
PC1801 Expiration of term