Calibration of Correlation Radiometers Using Pseudo-Random Noise Signals
نویسندگان
چکیده
منابع مشابه
Calibration of Correlation Radiometers Using Pseudo-Random Noise Signals
The calibration of correlation radiometers, and particularly aperture synthesis interferometric radiometers, is a critical issue to ensure their performance. Current calibration techniques are based on the measurement of the cross-correlation of receivers' outputs when injecting noise from a common noise source requiring a very stable distribution network. For large interferometric radiometers ...
متن کاملCorrection: Ramos-Pérez, I. et al. Calibration of Correlation Radiometers Using Pseudo-Random Noise Signals. Sensors 2009, 9, 6131–6149
1 Remote Sensing Lab., Dept. Signal Theory and Communications, Universitat Politècnica de Catalunya (UPC) Campus Nord, Bldg D3, Tel.: +34-934-017-362, E-08034 Barcelona, Spain; E-Mails: [email protected] (X.B.-L.); [email protected] (A.C.); [email protected] (N.R.A.); [email protected] (J.F.M.H.); [email protected] (E.V.D.) 2 DAS Photonics, Ciudad Politécnica de la Innovación, C...
متن کاملDeblocking Filter Based Artifact Reduction Using Pseudo Random Noise Masking
In this Project, we propose an algorithm for block artifact reduction for which Pseudo random noise masking is used. In H.264 Video Compression Standard, a Deblocking filter is implemented to reduce the quantization noise around the block boundaries. But there would still remain artifacts within blocks. These artifacts are known as Contour artifacts. These Contour artifacts further be reduced b...
متن کاملOptimal Calibration of Radiometers Using System Identification Techniques
Microwave radiometers are valuable for obtaining geophysical information such as the ocean surface salinity, stratiform precipitation, water vapor, temperature, soil moisture, vegetation cover, and others [1]. These environmental monitoring applications of passive microwave remote sensing systems require precision measurements of brightness temperatures over a range of more than 300K with absol...
متن کاملNoise-Optimized Silicon Radiometers
This paper describes a new, experimentally verified, noise analysis and the design considerations of the dynamic characteristics of silicon radiometers. Transimpedance gain, loop gain, and voltage gain were optimized versus frequency for photodiode current meters measuring ac and dc optical radiation. Silicon radiometers with improved dynamic characteristics were built and tested. The frequency...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sensors
سال: 2009
ISSN: 1424-8220
DOI: 10.3390/s90806131