Design and Implementation of DDS based Digital Amplitude Modulation

Author

Xie, Di ; Tian, Shulin ; Liu, Ke

Author_Institution

Sch. of Autom. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu

fYear

2009

fDate

28-29 April 2009

Firstpage

1

Lastpage

4

Abstract

Amplitude Modulation (AM) is a commonly used method in radio communication. Compared with analog AM, Digital AM (DAM) has the advantage of higher accuracy and better controllability. This article is dedicated to the analysis of the key issues in the implementation of DAM and its corresponding parameters based on the theories of amplitude modulation while carrying out simulations using Matlab, whereas the test results conform to the requirement of the design. At last, the article concludes with a DDS based DAM implementation based on the test results, which have proved the design to be correct that the waveforms are stable and have certain use value.

Keywords

amplitude modulation; direct digital synthesis; radiocommunication; DDS; Matlab simulations; digital amplitude modulation; direct-digital-synthesis; radio communication; Amplitude modulation; Controllability; Digital modulation; Equations; Frequency; Phase modulation; Signal processing; Signal synthesis; Testing; Virtual colonoscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Testing and Diagnosis, 2009. ICTD 2009. IEEE Circuits and Systems International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-2587-7

Type

conf

DOI

10.1109/CAS-ICTD.2009.4960799

Filename

4960799