KR970055811A - Distortion Compensation Circuit and Method of Transmission Device - Google Patents
Distortion Compensation Circuit and Method of Transmission Device Download PDFInfo
- Publication number
- KR970055811A KR970055811A KR1019950067851A KR19950067851A KR970055811A KR 970055811 A KR970055811 A KR 970055811A KR 1019950067851 A KR1019950067851 A KR 1019950067851A KR 19950067851 A KR19950067851 A KR 19950067851A KR 970055811 A KR970055811 A KR 970055811A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- distortion
- level
- generating
- input signal
- Prior art date
Links
Landscapes
- Amplifiers (AREA)
Abstract
1. 청구범위에 기재된 발명이 속한 기술분야1. TECHNICAL FIELD OF THE INVENTION
전송장치의 전치 보정Precompensation of the transmitter
2. 발명이 해결하려고 하는 기술적 과제2. The technical problem to be solved by the invention
전송장치의 전치 보정시 왜곡신호를 발생하는 구성을 선형성분, 고정왜곡성분 및 조정 왜곡성분 및 조정왜곡성분을 발생하는 3개의 패스 구조로 구성한다.The configuration for generating a distortion signal during pre-correction of the transmission device is composed of three path structures for generating a linear component, a fixed distortion component and an adjusting distortion component and an adjusting distortion component.
3. 발명의 해결 방법의 요지3. Summary of the Solution of the Invention
전송장치의 정치보정기 회로가, 일정 전력을 유지할 수 있도록 입력신호를 증폭하는 입력증폭기와, 증폭된 입력신호의 전력을 3패스로 분배하는 전력분배기와, 분배된 입력신호에서 선형성분을 통과시키는 선형패스부와, 분배된 입력신호에서 레벨이 변하지 않는 고정형 왜곡 성분을 상쇄시키기 위한 고정 왜곡신호를 발생하는 고정형 왜곡발생패스부와, 분배된 입력신호에서 순수 3차항 왜곡성분의 신호를 발생하여 송신기의 출력레벨에 따라 조정된 왜곡신호를 발생하는 조정형왜곡발생패스부와, 3개의 패스부에서 처리한 신호를 입력하여 결합하는 전력결합기와, 결합된 신호를 입력 레벨과 같은 레벨로 증폭 출력하는 출력증폭기로 구성된다.The stationary compensator circuit of the transmission device includes an input amplifier for amplifying the input signal to maintain a constant power, a power divider for distributing the power of the amplified input signal in three passes, and a linear component for passing a linear component in the distributed input signal. A fixed distortion generating path portion for generating a fixed distortion signal for canceling the fixed distortion component whose level does not change in the distributed input signal, and generating a pure third-order distortion component signal from the distributed input signal, An adjustable distortion generating path section for generating a distortion signal adjusted according to the output level, a power combiner for inputting and combining the signals processed by the three path sections, and an output amplifier for amplifying and outputting the combined signal at the same level as the input level. It consists of.
4. 발명의 중요한 용도4. Important uses of the invention
전송장치의 왜곡신호 발생부를 3개의 패스 구조를 하므로서, 전치 보정회로의 구성 및 제어동작을 간단하게 구현할 수 있다.The structure of the precorrection circuit and the control operation can be easily implemented by the three-pass structure of the distortion signal generator of the transmission device.
※ 선택도 : 제3도※ Selectivity: 3rd
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제8도는 전송장치에서 본 발명의 왜곡 보상회로의 특성을 시험하기 위한 전체 송신기의 회로를 도시하는 도면.8 shows a circuit of an entire transmitter for testing the characteristics of the distortion compensation circuit of the invention in a transmission device.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950067851A KR970055811A (en) | 1995-12-30 | 1995-12-30 | Distortion Compensation Circuit and Method of Transmission Device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950067851A KR970055811A (en) | 1995-12-30 | 1995-12-30 | Distortion Compensation Circuit and Method of Transmission Device |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970055811A true KR970055811A (en) | 1997-07-31 |
Family
ID=66637493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950067851A KR970055811A (en) | 1995-12-30 | 1995-12-30 | Distortion Compensation Circuit and Method of Transmission Device |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR970055811A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100324123B1 (en) * | 1999-08-04 | 2002-02-20 | 남상욱 | Method and apparatus for amplifier linearization using a predistorter |
-
1995
- 1995-12-30 KR KR1019950067851A patent/KR970055811A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100324123B1 (en) * | 1999-08-04 | 2002-02-20 | 남상욱 | Method and apparatus for amplifier linearization using a predistorter |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2697625B2 (en) | Feedforward amplifier | |
KR960705398A (en) | METHOD AND APPARATUS FOR FEEDFORWARD POWER AMPLIFYING | |
KR920704415A (en) | Feed Forward Distortion Minimization Circuit | |
SE9202381D0 (en) | DEVICE AND PROCEDURE FOR CORRECTING OF UNDERTAKING TENSION IN A RECEIVER | |
JPH10284951A (en) | Feedforward amplifier circuit | |
EP0526241B1 (en) | Linear compensating circuit | |
GB1369603A (en) | Reduction of intermodulation products in amplifiers | |
KR970055811A (en) | Distortion Compensation Circuit and Method of Transmission Device | |
KR970050026A (en) | Horizontal Size Control Circuit Using Microcomputer | |
ATE379875T1 (en) | AMPLIFIER LINEARIZATION | |
JP3115738B2 (en) | Linear amplifier | |
JPH03117024A (en) | Waveform compensation system for pulse power amplifier | |
JP2788865B2 (en) | Distortion compensator | |
JPS60171831A (en) | Cross modulation compensating device | |
KR930020834A (en) | Optical amplifiers and optical transmission systems having them | |
JP2590914B2 (en) | Distortion generation circuit | |
KR950022150A (en) | Automatic Gain Control with Variable Attenuator | |
JPH087704Y2 (en) | Cross modulation compensation circuit | |
KR100206469B1 (en) | Distortion compensating circuit in transmission system | |
KR200198130Y1 (en) | Method for shaping linear signal of power amplifier | |
JPH0661874A (en) | Linear transmission circuit | |
JPS62193403A (en) | Distortion generating circuit | |
KR890003116A (en) | Variable phase compensation device. | |
KR970013818A (en) | POWER CONTROL CIRCUIT | |
KR20010049027A (en) | Apparatus for adaptive controlling of feed forward linear device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WITN | Withdrawal due to no request for examination |