Implementation of DDS chirp signal generator on FPGA

Author

Heein Yang ; Sang-Burm Ryu ; Hyun-Chul Lee ; Sang-Gyu Lee ; Sang-Soon Yong ; Jae-Hyun Kim

Author_Institution

Dept. of Electr. & Comput. Eng., Ajou Univ., Suwon, South Korea

fYear

2014

fDate

22-24 Oct. 2014

Firstpage

956

Lastpage

959

Abstract

Synthetic aperture radar (SAR) is an active sensor that is widely used such as military purpose, land observation, and etc. The main characteristics of SAR system are as follow. First, as SAR uses microwave, it can be operated regardless of the weather and day-night conditions. SAR system uses the signal called chirp to acquire large bandwidth then it provides high-resolution images. The conventional analog type chirp generator of SAR system occupies large amount of space and weight. To implement chirp generator in small satellites, implementation of chirp generator on FPGA will be discussed in this paper.

Keywords

direct digital synthesis; field programmable gate arrays; radar imaging; radar resolution; synthetic aperture radar; DDS chirp signal generator; FPGA; SAR system; active sensor; high-resolution images; synthetic aperture radar; Bandwidth; Chirp; Field programmable gate arrays; Generators; Signal generators; Signal resolution; Synthetic aperture radar; Chirp signal; FPGA; chirp generator); direct digital synthesizer; synthetic aperture radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Communication Technology Convergence (ICTC), 2014 International Conference on

Conference_Location

Busan

Type

conf

DOI

10.1109/ICTC.2014.6983343

Filename

6983343