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The time-to-digital converter(TDC) aims to mark an accurate timestamp at the time of input signal comes. The Multi-phase Clock sampling method is an usual way to map the TDC into an FPGA. Traditionally, this method provides a medium accuracy and low resources occupation. In this paper, we present a new architecture of TDC base on the 2-ISERDES in the SelectIO, rather than utilizing the Slice resources...
The time-to-digital converter(TDC) is an equipment which aims to measure the accurate time of the edges of the input signal. Our work present an I/O Tile based multi-phase clock time-to-digital TDC, which is implemented in Field-Programmable-Gate-Array(FPGA). A hit signal is sampled by 8 equidistant phase-shifted clocks in the I/O Tile. A differential I/O standard input signal connecting to the I/O...
A design and simulation analysis method with genetic algorithm for the group delay of the ADC system balanced circuits is introduced in this paper. With the discussion of characteristics of linear phase of the system, genetic algorithm technology was introduced into the analysis and calculation of group delay equalization circuit of an anti-aliasing filter with given structure and parameters, genetic...
The delay-dependent variable structure control problem of a class of uncertain neutral delay systems is considered. By selecting a sliding surface depending on the current state and delayed state, the paper gives a delay-dependent sufficient condition in terms of linear matrix inequalities (LMIs) such that the closed-loop system is guaranteed to be asymptotically stable. According to reaching condition,...
This paper concerns the reliable guaranteed cost control problem of nonlinear systems with time-varying state delays and actuator failures for a given quadratic cost function. The problem is to design a delay-dependent reliable guaranteed cost state feedback control law which can tolerate actuator failures, such that the closed-loop cost function value is not more than a specified upper bound. Based...
This paper concerns the reliable guaranteed cost control problem of nonlinear uncertain discrete-time systems with time-varying state delay and actuator failures for a given quadratic cost function. The problem is to design a reliable guaranteed cost state feedback control law which can tolerate actuator failures, such that the closed-loop system is asymptotically stable and the closed-loop cost function...
Time synchronization is a critical middleware service of wireless sensor networks. Since the performance of time synchronization algorithm is greatly influenced by many factors, benchmark for evaluating time synchronization algorithm is not only difficult but also urgently needed. Software simulation is a good solution especially in the comparison between similar algorithms. In this paper, we presented...
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