1992
DOI: 10.1109/11.127428
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A four-stage FM broadcast audio peak limiter

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Cited by 2 publications
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“…An FM audio peak limiter, which uses a variable preemphasis filter in a feed-back loop, based on the signal amplitude after pre-emphasis, is described in [7]. While this technique is attractive, it is again an analog implementation using active filter circuitry, and is therefore not easily usable directly in a digital base-band architecture.…”
Section: A Limitations Of Existing Techniquesmentioning
confidence: 99%
“…An FM audio peak limiter, which uses a variable preemphasis filter in a feed-back loop, based on the signal amplitude after pre-emphasis, is described in [7]. While this technique is attractive, it is again an analog implementation using active filter circuitry, and is therefore not easily usable directly in a digital base-band architecture.…”
Section: A Limitations Of Existing Techniquesmentioning
confidence: 99%
“…Preves (1988) havia descrito alguns pontos desta tecnologia quando afirma que "se o nível de energia em uma banda particular de freqüência não for alterado por certo período, pode-se assumir que o sinal predominante naquela banda de freqüência é um ruído". Há outras estratégias, como o Limitador de pico (peakclipper) o qual corta o pico dos sinais e que pode utilizar mais de um estágio, dependendo de sua tecnologia e do tipo de utilidade (Leach, 1992), além do controle automático de ganho (AGC) podendo ser o de entrada (AGC-I) ou de saída (AGC-O) (Moore e Glasberg, 1988).…”
Section: Quadro 5 Subcategoria De Resposta Dependente Do Nível De Ampunclassified