A survey of digital down converter architecture for next generation wireless applications

Abstract

This article presents a brief survey of Digital down Converter (DDC) architecture and its extensive applications. The distinctive feature of the DDC architecture is its frequency translation from real data signal at an intermediate frequency to a complex baseband signal at zero frequency. The architecture of DDC comprises of Numerically Controlled Oscillator (NCO) and decimation filters. The components of ultra efficient DDC architecture have been implemented in Field Programmable Gate Array (FPGA) device. This down converter provides high malleability, customizability and bearable cost. Due to its amenities, digital down converter was utterly studied and applied in many wireless communication technologies.

DDC Pool: Efficient down-conversion of signals for RFI monitoring

“…The tool for extracting a single signal from a wideband timeseries is the digital down-converter (DDC). There are several possible DDC architectures [1]. However, to efficiently extract multiple signals in parallel we propose a collection of dynamically-assignable synthesis filterbanks following the ideas in [2,3,4,5].…”