KR970024653A - Trellis coding modulation device using frequency hopping - Google Patents
Trellis coding modulation device using frequency hopping Download PDFInfo
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- KR970024653A KR970024653A KR1019950038529A KR19950038529A KR970024653A KR 970024653 A KR970024653 A KR 970024653A KR 1019950038529 A KR1019950038529 A KR 1019950038529A KR 19950038529 A KR19950038529 A KR 19950038529A KR 970024653 A KR970024653 A KR 970024653A
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- frequency hopping
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Abstract
본 발명은 멀티패스 페이딩(multipath fading) 환경하에서 비트에러율을 개선하는 주파수 호핑을 이용한 트렐리스 코딩 모듈레이션 장치에 관한 것으로, 이를 해결하기 위하여 송출을 원하는 입력 데이타 비트를 제공받아 트렐리스 인코딩 하여 병렬 비트로 출력하는 트렐리스 인코더, 트렐리스 인코더로부터 출력되는 상기 병렬 비트를 전송단위인 심블로 변환시키는 모듈레이터를 구비하고서 멀티패스 페이딩 환경에서 비트에러율을 개선하는 장치에 있어서; 모듈레이터(20)로부터 출력되는 심블들을 소정의 형태로 주파수 호핑시키는 주파수 호핑처리부(30)와, 주파수 호핑처리부(30)으로부터 출력되는 상기 소정의 형태로 호핑된 심블들을 서로 다른 주파수 대역으로 분리시켜 출력시키는 전송처리부(40)와, 전송처리부(40)의 서로 다른 주파수 대역을 같는 채널대역으로부터 수신받아서 주파수 호핑된 데이타를 복주하며, 이 복조된 데이타로부터 채널상태정보 및 상기 복조된 데이타를 제공하는 디모듈레이션부(50)와, 디모듈레이션부(50)에 의해서 복조된 데이타로부터 채널상태 정보를 판독하는 채널상태 판독부(60)와, 디모듈레이션부(50)에 의해서 복조되어 입력되는 심블들과 상기 채널상태 판독부(60)에 의해서 제공되는 판독신호를 근거로 하여 원래의 수신 신호로서 디코딩하는 디코더부(70)를 구비함으로써 본 발명은 페이딩(fading)에 의한 비트 에러를 줄여 주고 TCM 시스템의 에러 상관성 능력을 개선시킬 수 있는 효과가 있다.The present invention relates to a trellis coding modulation apparatus using frequency hopping that improves bit error rate in a multipath fading environment. An apparatus for improving a bit error rate in a multipath fading environment, comprising: a trellis encoder for outputting bits and a modulator for converting the parallel bits output from the trellis encoder into a transmission unit as a simple unit; Frequency hopping processing unit 30 for frequency hopping the thimbles output from the modulator 20 in a predetermined form, and the predetermined hobbed thimbles output from the frequency hopping processing unit 30 are separated into different frequency bands and outputted Receiving the different frequency bands of the transmission processor 40 from the same channel band and demodulating the frequency-hopped data, and providing the channel state information and the demodulated data from the demodulated data. The modulation unit 50, the channel state reading unit 60 for reading channel state information from the data demodulated by the demodulation unit 50, the demodulators demodulated and input by the demodulation unit 50, and A decoder unit 70 that decodes the original received signal based on the read signal provided by the channel state reading unit 60. The present invention has an effect that may reduce a bit error due to fading (fading) improves the error correlation power of the TCM system.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 본 발명에 따른 주파수 호핑을 이용한 트렐리스 코딩 모듈레이션 장치를 개략적으로 도시한 블럭 구성도.1 is a block diagram schematically showing a trellis coding modulation apparatus using frequency hopping according to the present invention.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950038529A KR970024653A (en) | 1995-10-31 | 1995-10-31 | Trellis coding modulation device using frequency hopping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950038529A KR970024653A (en) | 1995-10-31 | 1995-10-31 | Trellis coding modulation device using frequency hopping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR970024653A true KR970024653A (en) | 1997-05-30 |
Family
ID=66584999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950038529A KR970024653A (en) | 1995-10-31 | 1995-10-31 | Trellis coding modulation device using frequency hopping |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR970024653A (en) |
-
1995
- 1995-10-31 KR KR1019950038529A patent/KR970024653A/en not_active Application Discontinuation
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