Next Article in Journal
Improved Pansharpening with Un-Mixing of Mixed MS Sub-Pixels near Boundaries between Vegetation and Non-Vegetation Objects
Previous Article in Journal
Improved VIIRS and MODIS SST Imagery
Article Menu

Export Article

Open AccessLetter
Remote Sens. 2016, 8(2), 85; doi:10.3390/rs8020085

Radiometric Resolution Analysis and a Simulation Model

1
DA-Design OY, Keskuskatu 29, 31600 Jokioinen, Finland
2
Technology Research Center, University of Turku, Joukahaisenkatu 3, 20520 Turku, Finland
3
Bittium Wireless Ltd., Tutkijantie 8, 90590 Oulu, Finland
*
Author to whom correspondence should be addressed.
Academic Editors: Richard Gloaguen and Prasad S. Thenkabail
Received: 13 October 2015 / Revised: 12 January 2016 / Accepted: 18 January 2016 / Published: 22 January 2016
View Full-Text   |   Download PDF [366 KB, uploaded 22 January 2016]   |  

Abstract

Total power radiometer has a simple configuration and the best theoretical resolution. Gain fluctuations and calibration errors, however, can induce severe errors in the solved scene brightness temperature. To estimate the overall radiometer performance we present a numerical simulation tool that can be used to determine the radiometric resolution. Our model considers three main components that degrade the radiometric resolution: thermal noise, 1/f noise and calibration errors. These error sources have long been known to exist, but comprehensive models able to account all these effects quantitatively and accurately in a practical manner have been missing. We have developed a radiometer simulation model that is able to produce radiometer signals that incorporate realistic radiometer effects that show up as noise and other errors in the radiometer video signal. Our simulation tool integrates the fundamental radiometer theories numerically and allows the investigation of different calibration schemes and receiver topologies. The model can be used as a guide for design and optimization as well as for verification of the radiometer performance. Moreover, it can be extended to a much larger and more complex radiometer systems allowing better system level performance estimation and optimization with minimal bread-board implementations. The model mimics real radiometer video data and thus the complete data analysis pipeline can be developed and verified before the real video data is available. In this paper, the model has been applied to a total power radiometer operating in the 52 GHz frequency range. View Full-Text
Keywords: radiometer; 1/f noise; resolution; sensitivity; model; remote sensing radiometer; 1/f noise; resolution; sensitivity; model; remote sensing
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Kaisti, M.; Altti, M.; Poutanen, T. Radiometric Resolution Analysis and a Simulation Model. Remote Sens. 2016, 8, 85.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Remote Sens. EISSN 2072-4292 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top