Intelligent error correction method applied on an active pixel sensor based star tracker

2005 ◽  
Author(s):  
Uwe Schmidt
Keyword(s):  
Error Correction ◽  
Correction Method ◽  
Star Tracker ◽  
Active Pixel Sensor ◽  
Error Correction Method ◽  
Active Pixel

Design of a temperature error correction method used for meteorology and climate research

2021 ◽  
Vol 263 ◽  
pp. 105817
Author(s):  
Jie Yang ◽  
Qingquan Liu ◽  
Gaoying Chen ◽  
Xuan Deng ◽  
Li Zhang
Keyword(s):  
Error Correction ◽  
Correction Method ◽  
Temperature Error ◽  
Climate Research ◽  
Error Correction Method

CMOS active pixel sensor specific performance effects on star tracker/imager position accuracy

2001 ◽  
Author(s):  
Bruce R. Hancock ◽  
Robert C. Stirbl ◽  
Thomas J. Cunningham ◽  
Bedabrata Pain ◽  
Christopher J. Wrigley ◽  
...  
Keyword(s):  
Star Tracker ◽  
Active Pixel Sensor ◽  
Position Accuracy ◽  
Active Pixel ◽  
Specific Performance ◽  
Performance Effects

scholarly journals Performance of the FMI cosine error correction method for the Brewer spectral UV measurements

2018 ◽  
Vol 11 (9) ◽  
pp. 5167-5180 ◽  
Author(s):  
Kaisa Lakkala ◽  
Antti Arola ◽  
Julian Gröbner ◽  
Sergio Fabian León-Luis ◽  
Alberto Redondas ◽  
...  
Keyword(s):  
Error Correction ◽  
Correction Method ◽  
Uv Spectra ◽  
Correction Coefficient ◽  
Finnish Meteorological Institute ◽  
Angular Response ◽  
Error Correction Method ◽  
Radiation Distribution ◽  
Rapid Changes ◽  
Relative Differences

Abstract. Non-ideal angular response of a spectroradiometer is a well-known error source of spectral UV measurements and for that reason instrument specific cosine error correction is applied. In this paper, the performance of the cosine error correction method of Brewer spectral UV measurements in use at the Finnish Meteorological Institute (FMI) is studied. Ideally, the correction depends on the actual sky radiation distribution, which can change even during one spectral scan due to rapid changes in cloudiness. The FMI method has been developed to take into account the changes in the ratio of direct to diffuse sky radiation and it derives a correction coefficient for each measured wavelength. Measurements of five Brewers were corrected for the cosine error and the results were compared to the reference travelling spectroradiometer (QASUME). Measurements were performed during the RBCC-E (Regional Brewer Calibration Center – Europe) X Campaign held at El Arenosillo, Huelva (37∘ N, 7∘ W), Spain, in 2015. In addition, results of site audits of FMI's Brewers in Sodankylä (67∘ N, 27∘ E) and Jokioinen (61∘ N, 24∘ E) during 2002–2014 were studied. The results show that the spectral cosine error correction varied between 4 and 14 %. After that the correction was applied to Brewer UV spectra the relative differences between the QASUME and the Brewer diminished even by 10 %. The study confirms that the method, originally developed for measurements at high latitudes, can be used at mid-latitudes as well. The method is applicable to other Brewers as far as the required input parameters, i.e. total ozone, aerosol information, albedo, instrument specific angular response and slit function are available.

scholarly journals Burst Error Correction Method Based on Arithmetic Weighted Checksums

Engineering ◽  
2012 ◽  
Vol 04 (11) ◽  
pp. 768-773 ◽  
Author(s):  
Saleh Al-Omar ◽  
Atef Obeidat
Keyword(s):  
Error Correction ◽  
Correction Method ◽  
Burst Error ◽  
Error Correction Method

A joint encryption and error correction method used in satellite communications

2014 ◽  
Vol 11 (3) ◽  
pp. 70-79 ◽  
Author(s):  
Li Ning ◽  
Lin Kanfeng ◽  
Lin Wenliang ◽  
Deng Zhongliang
Keyword(s):  
Error Correction ◽  
Satellite Communications ◽  
Correction Method ◽  
Error Correction Method
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