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The analysis of stability and numerical simulation of Costas loop circuits for the high-frequency signals is a challenging task. The problem lies in the fact that it is necessary to observe very fast time scale of input signals and slow time scale of signal’s phases simultaneously. To overcome this difficulty, it is possible to follow the classical ideas of Gardner and Viterbi to construct a mathematical...
With the advent of the microprocessor and related intelligent hardware components pH control is being rapidly changed. Bulky control loop configurations formerly needed to deal with non-linearities and instabilities of the process are disappearing and are being replaced by extremely simple hardware with built-in software intelligence. The most sophisticated control programs are however useless unless...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.