We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.
theory and implementation
from Part III - DUC, DDC, ADC, DAC, and NCO
Published online by Cambridge University Press: 07 October 2011
Digital conversion is a fundamental part of many digital radio systems, which include up-conversion of the discrete baseband signal stream into a high-resolution radio signal at the transmitter, and down-conversion of a high-resolution radio signal back into a baseband signal at the receiver. In this chapter, we cover the basics of digital conversion (analog to digital and digital to analog), the functionality of the digital up-converter (DUC) and digital down-converter (DDC) in relation to conversion between intermediate frequency (IF) and baseband with the emphasis on the implementation of the DDC and DUC for standard wireless communication systems.
This chapter is organized into six sections. The first section gives an introduction to the digital transceiver and related basic processing blocks. Section 12.2 will present the multi-rate, multi-stage and filter-banks design for a digital front-end. Section 12.2.1 will describe I/Q (In-phase/Quadrature) modulation/demodulation and NCO (numerical control oscillator) design for the DDC and DUC. Section 12.2.2 will present sample rate conversion design in the DDC. The multi-rate, multi-stage filtering and filter bank implementation is covered in this section. Section 12.2.3 will talk about sample rate conversion in the DUC.
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.
