Patent
Digital down converter and method
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TLDR
In this paper, a digital down converter for extracting a signal from a complex digital signal is proposed, where the real and imaginary components of the complex signal are each modulated to shift the center frequency of the desired signal to zero frequency, decimated digitally to limit the bandwidth of each component to the bandwidth, and filtered to alter the shape thereof.Abstract:
A digital down converter for extracting a signal from a complex digital signal wherein the real and imaginary components of the complex digital signal are each modulated to shift the center frequency of the desired signal to zero frequency, decimated digitally to limit the bandwidth of each to the bandwidth of the desired signal and filtered to alter the shape thereof. The digital down converter includes a formatter for arranging the output of the desired signal in one of multiple output formats and a controller for programmably controlling the modulation, decimation and filtering and for selecting the desired output format.read more
Citations
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Wireless local area network (WLAN) technology and applications including techniques of universal frequency translation
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References
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