Análisis de un Transmisor Digital de HF Basado en la Técnica de Eliminación y Recuperación de Envolvente

Gimeno Martín, Alejandro and Benavente Peces, César and Ortega González, Francisco Javier and Pardo Martin, José Manuel (2008). Análisis de un Transmisor Digital de HF Basado en la Técnica de Eliminación y Recuperación de Envolvente. In: "XXIII Simposium Nacional de la Unión Científica Internacional de Radio.URSI 2008", 22/09/2008-24/09/2008, Madrid, España. ISBN 978-84-612-6290-8. pp. 1-4.

Description

Title: Análisis de un Transmisor Digital de HF Basado en la Técnica de Eliminación y Recuperación de Envolvente
Author/s:
  • Gimeno Martín, Alejandro
  • Benavente Peces, César
  • Ortega González, Francisco Javier
  • Pardo Martin, José Manuel
Item Type: Presentation at Congress or Conference (Article)
Event Title: XXIII Simposium Nacional de la Unión Científica Internacional de Radio.URSI 2008
Event Dates: 22/09/2008-24/09/2008
Event Location: Madrid, España
Title of Book: Actas del XXIII Simposium Nacional de la Unión Científica Internacional de Radio
Date: September 2008
ISBN: 978-84-612-6290-8
Subjects:
Faculty: E.U.I.T. Telecomunicación (UPM)
Department: Ingeniería Audiovisual y Comunicaciones [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

An HF EER (Envelope Elimination and Restoration) Digital Transmitter simulation is presented in this paper. Effects that increase the IMD (Intermodulation Distortion) levels in an EER system are described and simulated. Basically, the main effects are the limitation of the envelope bandwidth, AMAM distortion and AM-PM distortion at the power amplifier stage, and the delay between the envelope and phase branches. These effects deteriorate the EER Digital Transmitter linearity. By means of this simulation, it is shown the contribution of every effect to the global IMD. The system was tested with a DSB (Double Side Band) signal. As a result, with an envelope bandwidth of 2kHz and a delay between branches smaller than 5 μs, more than 60 dB of intermodulation product rejection was achieved. It has also been developed an algorithm which determines the delay between branches with an error smaller than 0.035o when the signal is a non-modulated tone.

More information

Item ID: 3376
DC Identifier: http://oa.upm.es/3376/
OAI Identifier: oai:oa.upm.es:3376
Official URL: http://gass.ucm.es/URSI2008/simposium/inicio.html
Deposited by: Memoria Investigacion
Deposited on: 24 Jun 2010 11:57
Last Modified: 20 Apr 2016 12:55
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