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Service-based software systems (SBSSs) are widely deployed due to the growing trend of distributed computing and cloud computing. It is important to ensure high quality of an SBSS, especially in a strongly competitive market. Existing works on SBSS reliability usually assumed independence of service failures. However, the fact that resource sharing exists in different levels of SBSS operations invalidates...
A time-interleaved 12-b SAR ADC, employing the proposed digital calibration with a delay-sampling technique to correct timing skew, achieves a 600-MHz sampling rate. The 600-Ms/s ADC has been fabricated in a 40-nm CMOS technology, improving SFDR from 55 dB to 71 dB for a 100-MHz input signal. The 4-way interleaved ADC achieves a 61-dB SNDR while dissipating 23 mW from a 0.9-V power supply.
The impact on performance of Nyquist-rate analog-to-digital converters (ADC) with the presence of sampling clock jitter is first reviewed. Then the sampling clock jitter requirement is investigated based on the linearly approximated sampling model as well as the generic autocorrelation function approach. This leads to the motivation for cancelling the jitter-induced error in the digital domain. Two...
With the growing scale of software system, assuring software quality through automated testing becomes increasingly important. When automated testing is involved in software development, the uncertainty caused by automated test failures should not be ignored. Besides, the modification of tested software may introduce some potential faults and further invalidate some test scripts, which may lead to...
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