Analog mitigation of out of band strong interferers in wide band acquisition for multiband HF transmissions

Zazo Bello, Santiago; Sanz Gonzalez, Jose Luis; Pérez Díaz, Baltasar; Pérez Álvarez, Iván; Lopez Perez, Javier y Melián Gutiérrez, Laura (2012). Analog mitigation of out of band strong interferers in wide band acquisition for multiband HF transmissions. En: "The 12th IET International Conference on Ionospheric Radio Systems and Techniques (IRST 2012)", 15/05/2012 - 17/05/2012, York, UK. pp. 531-535.

Descripción

Título: Analog mitigation of out of band strong interferers in wide band acquisition for multiband HF transmissions
Autor/es:
  • Zazo Bello, Santiago
  • Sanz Gonzalez, Jose Luis
  • Pérez Díaz, Baltasar
  • Pérez Álvarez, Iván
  • Lopez Perez, Javier
  • Melián Gutiérrez, Laura
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: The 12th IET International Conference on Ionospheric Radio Systems and Techniques (IRST 2012)
Fechas del Evento: 15/05/2012 - 17/05/2012
Lugar del Evento: York, UK
Título del Libro: Actas de 12th IET International Conference on Ionospheric Radio Systems and Techniques (IRST 2012)
Fecha: Mayo 2012
Materias:
Palabras Clave Informales: HF Modem, Wideband Transmission, Interference Mitigation, Zero-Crossing Statistics, Variable Notch Filter.
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Señales, Sistemas y Radiocomunicaciones
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

It is clear that in the near future much broader transmissions in the HF band will replace part of the current narrow band links. Our personal view is that a real wide band signal is infeasible in this environment because the usage is typically very intensive and may suffer interferences from all over the world. Therefore, we envision that dynamic multiband transmissions may provide better satisfactory performance. From the very beginning, we observed that real links with our broadband transceiver suffered interferences out of our multiband but within the acquisition bandwidth that degrade the expected performance. Therefore, we concluded that a mitigation structure is required that operates on severely saturated signals as the interference may be of much higher power. In this paper we address a procedure based on Higher Order Crossings (HOC) statistics that are able to extract most of the signal structure in the case where the amplitude is severely distorted and allows the estimation of the interference carrier frequency to command a variable notch filter that mitigates its effect in the analog domain.

Más información

ID de Registro: 20119
Identificador DC: http://oa.upm.es/20119/
Identificador OAI: oai:oa.upm.es:20119
Depositado por: Memoria Investigacion
Depositado el: 29 Sep 2013 10:56
Ultima Modificación: 21 Abr 2016 22:31
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