Radio receiver

A radio receiver comprises frequency translation means(20, 21, 22) for frequency down converting an input signal to an intermediate signal, digital channel selection filtering means including at least one analogue-to-digital converter(ADC)(32, 33), the ADC comprising an over-sampling quantizer(Q1, Q...

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Bibliographische Detailangaben
1. Verfasser:	T.J. MOULSLEY
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION ANDCOMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION ANDCOMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWNENERGY USE CODE CONVERSION IN GENERAL CODING DECODING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSMISSION WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:	A radio receiver comprises frequency translation means(20, 21, 22) for frequency down converting an input signal to an intermediate signal, digital channel selection filtering means including at least one analogue-to-digital converter(ADC)(32, 33), the ADC comprising an over-sampling quantizer(Q1, Q2) having a plurality of dynamically selectable quantization levels, and means(30, 31, 36) responsive to the characteristics of the input signal for adjusting the resolution of the ADC to the characteristics of the input signal. The ADC may comprise a Sigma-Delta ADC. The resolution may be adjusted by altering the over-sampling rate and/or selecting the number of quantization levels to handle the prevailing interference and the wanted signal.