KR970066609A - Digital control circuit for controlling multi-stage automatic gain control amplifier stage - Google Patents
Digital control circuit for controlling multi-stage automatic gain control amplifier stage Download PDFInfo
- Publication number
- KR970066609A KR970066609A KR1019960006977A KR19960006977A KR970066609A KR 970066609 A KR970066609 A KR 970066609A KR 1019960006977 A KR1019960006977 A KR 1019960006977A KR 19960006977 A KR19960006977 A KR 19960006977A KR 970066609 A KR970066609 A KR 970066609A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- control
- digital
- control signal
- output
- Prior art date
Links
- 238000006243 chemical reaction Methods 0.000 claims 8
- 230000003321 amplification Effects 0.000 claims 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims 7
- 239000003990 capacitor Substances 0.000 claims 4
- 238000012512 characterization method Methods 0.000 claims 3
- 230000003139 buffering effect Effects 0.000 claims 2
- 239000004065 semiconductor Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
- G01S7/34—Gain of receiver varied automatically during pulse-recurrence period, e.g. anti-clutter gain control
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/001—Digital control of analog signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Control Of Amplification And Gain Control (AREA)
Abstract
본 발명은 다단 자동 이득 제어 증폭단을 제어하는 디지탈 제어회로를 공개한다. 제1제어신호에 응답하여 입력신호의 이득을 자동으로 제어하여 출력하는 제1자동이득 제어 증폭 수단과, 입력한 제1자동 이득 제어 증폭 수단의 출력을 입력신호의 주파수 형태에 따라 증폭하여 출력하는 제1증폭수단과, 입력한 제1증폭수단으로부터 출력되는 신호의 이득을 제2제어신호에 응답하여 자동으로 제어하여 출력하는 제2자동 이득 제어 증폭 수단과, 제2자동이득 제어 증폭 수단의 출력을 입력신호의 주파수 형태에 따라 증폭하여 출력하는 제2증폭수단을 가지는 자동 이득 제어 증폭단을 제어하는 그 회로는, 제2증폭수단으로부터 출력되는 신호의 크기를 측정하고, 원하는 정보 신호를 검출하여 출력하는 검출수단과, 아날로그 형태의 정보 신호를 디지탈 형태로 변환하여 출력하고, 크기와 기준 신호를 비교하여 디지탈 형태의 디지탈 제어신호를 출력하는 신호 처리수단 및 선형 특성화용 데이타를 저장하고, 디지탈 제어신호에 응답하여 저장된 데이타를 아날로그 신호로 변환하여 제1 및 제2제어신호로서 출력하는 제어신호 출력수단으로 구성되고, 회로의 구현이 용이하고, 잡음에 강하며, 2개 이상의 자동 이득 제어 증폭기들을 제어할 수 있고, RF단 뿐만 아니라 IF단에서 자동 이득 제어 증폭기들이 사용될 때, 그들의 비선형 영역도 활용할 수 있도록 하기 때문에 넓은 동적 동작 범위를 확보할 수 있는 효과가 있다.The present invention discloses a digital control circuit for controlling a multi-stage automatic gain control amplifier stage. A first automatic gain control amplifying means for automatically controlling the gain of the input signal in response to the first control signal and outputting the amplified signal according to the frequency form of the input signal, Second automatic gain control amplifying means for automatically controlling and outputting a gain of a signal output from the input first amplifying means in response to a second control signal and outputting an output of the second automatic gain control amplifying means And a second amplifying means for amplifying the output signal of the second amplifying means in accordance with the frequency type of the input signal and outputting the amplified output signal. The circuit measures the magnitude of the signal output from the second amplifying means, And an analog-type information signal is converted into a digital form and output, and a digital-type digital control Signal processing means for outputting a signal and control signal output means for storing linear characteristic data and converting the data stored in response to the digital control signal into an analog signal and outputting the analog signal as first and second control signals, It is easy to implement, is robust to noise, can control more than two automatic gain control amplifiers, and allows the use of their non-linear regions when using automatic gain control amplifiers in the IF stage as well as in the RF stage, There is an effect that a range can be ensured.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제2도는 본 발명에 따른 다단 자동 이득 제어 증폭단을 제어하는 디지탈 제어회로의 일실시예의 블럭도이다.FIG. 2 is a block diagram of an embodiment of a digital control circuit for controlling a multi-stage automatic gain control amplifier according to the present invention.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960006977A KR100381783B1 (en) | 1996-03-15 | 1996-03-15 | Digital control circuit for controlling multiple agc amplification terminals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960006977A KR100381783B1 (en) | 1996-03-15 | 1996-03-15 | Digital control circuit for controlling multiple agc amplification terminals |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970066609A true KR970066609A (en) | 1997-10-13 |
KR100381783B1 KR100381783B1 (en) | 2003-07-10 |
Family
ID=37417234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960006977A KR100381783B1 (en) | 1996-03-15 | 1996-03-15 | Digital control circuit for controlling multiple agc amplification terminals |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100381783B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030034601A (en) * | 2001-10-26 | 2003-05-09 | 엘지이노텍 주식회사 | Target detection circuit |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100514288B1 (en) * | 2003-11-04 | 2005-09-13 | 한국전자통신연구원 | Apparatus and method of adaptive gain controlling |
-
1996
- 1996-03-15 KR KR1019960006977A patent/KR100381783B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030034601A (en) * | 2001-10-26 | 2003-05-09 | 엘지이노텍 주식회사 | Target detection circuit |
Also Published As
Publication number | Publication date |
---|---|
KR100381783B1 (en) | 2003-07-10 |
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