Wideband Chirp Waveform Generation and Error Compensation Using Multi-DDS 


Vol. 44,  No. 4, pp. 652-658, Apr.  2019
10.7840/kics.2019.44.4.652


PDF
  Abstract

The synthetic aperture radar (SAR) is being widely used in worldwide because it uses microwaves and can acquire high-resolution images regardless of the weather condition. The resolution is an important indicator when the observation purpose is surveillance and monitoring object. In case of X-band SAR, it can distinguish a few cm. However, because high-resolution SAR is limited systemic limitations and composed expensive components, it is hard for the private level to produce. In this paper, we implement wideband chirp waveform using multiple direct digital synthesizers (Multi-DDS) and propose the method to distortion compensation of the waveform that may occur during digital analog transformation. The targeted wideband chirp waveform were output using four direct digital synthesizers and multiplexer and only one quarter of a clock over the existing clock at the FPGA. We confirmed wideband chirp waveform using Simulink, and then phase error was compensated through block diagram and code debugging.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Cite this article

[IEEE Style]

K. Kim, M. Go, J. Ha, J. Kim, "Wideband Chirp Waveform Generation and Error Compensation Using Multi-DDS," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 4, pp. 652-658, 2019. DOI: 10.7840/kics.2019.44.4.652.

[ACM Style]

Kyeong-Rok Kim, Min-Ho Go, Jin-Hyuk Ha, and Jae-Hyun Kim. 2019. Wideband Chirp Waveform Generation and Error Compensation Using Multi-DDS. The Journal of Korean Institute of Communications and Information Sciences, 44, 4, (2019), 652-658. DOI: 10.7840/kics.2019.44.4.652.

[KICS Style]

Kyeong-Rok Kim, Min-Ho Go, Jin-Hyuk Ha, Jae-Hyun Kim, "Wideband Chirp Waveform Generation and Error Compensation Using Multi-DDS," The Journal of Korean Institute of Communications and Information Sciences, vol. 44, no. 4, pp. 652-658, 4. 2019. (https://doi.org/10.7840/kics.2019.44.4.652)

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)






pISSN : 1226 - 4717
eISSN : 2287 - 3880