ES2168956A1 - Modulacion digital de fase con pulsos complementarios sobre portadoras independientes. - Google Patents
Modulacion digital de fase con pulsos complementarios sobre portadoras independientes.Info
- Publication number
- ES2168956A1 ES2168956A1 ES200000923A ES200000923A ES2168956A1 ES 2168956 A1 ES2168956 A1 ES 2168956A1 ES 200000923 A ES200000923 A ES 200000923A ES 200000923 A ES200000923 A ES 200000923A ES 2168956 A1 ES2168956 A1 ES 2168956A1
- Authority
- ES
- Spain
- Prior art keywords
- spectrum
- components
- phase modulation
- pulses
- digital phase
- 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
Links
Landscapes
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Sistema de modulación digital de fase con pulsos complementarios sobre portadoras independientes, que constituye un método de transmisión y recepción de señales moduladas en fase para mejorar el aprovechamiento y/o la eficiencia del espectro disponible. En emisión, una secuencia digital se conforma en paralelo con varios subpulsos complementarios (cuya suma produce el pulso deseado). Cada una de estas conformaciones se transmite paso banda sobre una portadora independiente. El receptor efectúa conversiones sobre las componentes recibidas para obtener información quasi- equivalente a la correspondiente a la misma secuencia conformada con el pulso deseado. Para señales de espectro no ensanchado, deberá evitarse en emisión el solapamiento espectral entre las componentes transmitidas. Para señales de espectro ensanchado, las componentes podrán superponerse espectralmente siempre que tras la correlación/desensanche en el receptor, no exista interferencia significativa entre las distintas componentes desensanchadas, con lo puede mejorarse sensiblemente la eficiencia espectral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200000923A ES2168956B1 (es) | 2000-04-10 | 2000-04-10 | Modulacion digital de fase con pulsos complementarios sobre portadoras independientes. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES200000923A ES2168956B1 (es) | 2000-04-10 | 2000-04-10 | Modulacion digital de fase con pulsos complementarios sobre portadoras independientes. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES2168956A1 true ES2168956A1 (es) | 2002-06-16 |
| ES2168956B1 ES2168956B1 (es) | 2003-11-01 |
Family
ID=8493122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES200000923A Expired - Fee Related ES2168956B1 (es) | 2000-04-10 | 2000-04-10 | Modulacion digital de fase con pulsos complementarios sobre portadoras independientes. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2168956B1 (es) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5241544A (en) * | 1991-11-01 | 1993-08-31 | Motorola, Inc. | Multi-channel tdm communication system slot phase correction |
-
2000
- 2000-04-10 ES ES200000923A patent/ES2168956B1/es not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5241544A (en) * | 1991-11-01 | 1993-08-31 | Motorola, Inc. | Multi-channel tdm communication system slot phase correction |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2168956B1 (es) | 2003-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EC2A | Search report published |
Date of ref document: 20020616 Kind code of ref document: A1 Effective date: 20020616 |
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| FG2A | Definitive protection |
Ref document number: 2168956B1 Country of ref document: ES |
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| PC2A | Transfer of patent | ||
| FD2A | Announcement of lapse in spain |
Effective date: 20180807 |