Time-interleaved analog-to-digital converter (ADC) architecture is crucial to increase the maximum sample rate. However, offset mismatch, gain mismatch, and timing error between time-interleaved channels degrade the performance of time-interleaved ADCs. This paper focuses on the gain mismatch and timing error. Techniques based on Discrete Fourier Transform (DFT) for estimating and correcting gain mismatch and timing error in an M-channel ADC are depicted. Numerical simulations are used to verify the proposed estimation and correction algorithm.

The following article is devoted to the process of adapting loanwords into the Russian language in the first half of 17th century. The material which was subject to analysis was extracted from the first, handwritten editions of Russian opinion journalism, written from 1600 to 1650. The purpose of the article is to present the process of absorbing loanwords on the phonetic and morphological level, and to record changes in word genders and resonance variants in the words internalized into Russian either originating directly from another language or passed on through one from other languages