Influence of complicated background noise on passive ground-based radiometer with low elevation angle

Lulu Wu; Yu Liu; Yaoting Zhu

doi:10.1117/12.717576

1 May 2007 Influence of complicated background noise on passive ground-based radiometer with low elevation angle

Lulu Wu, Yu Liu, Yaoting Zhu

Proceedings Volume 6548, Passive Millimeter-Wave Imaging Technology X; 654805 (2007) https://doi.org/10.1117/12.717576
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

A ground-based radiometer has been used to measure airborne targets at low elevation angles, the complicated background noise received by the radiometer has been classified, and its influence on the main lobe and side lobe of the antenna analyzed. Firstly the influence of elevation angle and the operating frequency on the background noise received by the main lobe has been analyzed, and corresponding plots have been presented. Secondly, the influence of elevation angle and terrestrial surface parameters on background noise received by the side lobe has been analyzed and corresponding equations and plots have also been presented. Mathematical models and theoretical curves are in good agreement with the experimental data collected at 8mm from sky brightness temperature measurements with different terrestrial surface brightness temperatures.

Citation Download Citation

Lulu Wu, Yu Liu, and Yaoting Zhu "Influence of complicated background noise on passive ground-based radiometer with low elevation angle", Proc. SPIE 6548, Passive Millimeter-Wave Imaging Technology X, 654805 (1 May 2007); https://doi.org/10.1117/12.717576

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available