Reliability Evaluation Method for DVB-T2 Systems on Typical Transmitter Stations

Journal of Communications Technology and Electronics - In this paper, we model the Digital Video Broadcasting-Terrestrial 2 (DVB-T2) system on a typical transmitter station in the content...     

Optimization of Methods of Data Acquisition and Processing in Satellite Laser Ranging Systems

The opportunities for increasing the accuracy of measurement by satellite ranging systems operating in an analog mode of echo-signal reception are considered. In particular, a new method is proposed for including the weights of measurements when processing the results of satellite laser ranging.     

High precision prediction of universal time based on 100-year data

A new method is proposed for predicting universal time based on constructing a general harmonic model for the earth’s rotation and using a modified autoregression technique. A comparison of the predictions made at the Siberian State Research Institute of Metrology (SNIIM) and the International Earth Rotation and Reference Systems Service (IERS) during 2008–2009 shows that the former are more accurate. The efficiency of the new prediction technique for time support of the GLONASS system is demonstrated.     

Lycra T-400弹性纤维的染色

讨论了DyStar公司推荐的Lycra T-400的染色技术,包括染料的筛选和应用工艺.Lycra T-400是来自英威达(Invista)的一种新型弹性纤维,它采用双组分纤维技术,这种技术赋予针织物和机织物更好的舒适感、手感、抗皱性和免烫的特点.