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Frequency drift is an important issue and is difficult to be avoided in ADC testing. The power leakage caused by frequency drift in the ADC output spectrum cannot be removed by conventional methods. This paper proposes a new algorithm which can estimate the ADC specifications accurately when there is frequency drift. The output of the ADC is collected as Ks segments. Phase correction is applied to...
Clock jitter is a crucial factor in high speed and high performance Analog-to-Digital Converter (ADC) testing. Random clock jitter increases the noise floor in the ADC output spectrum making it difficult to obtain the true ADC Signal to Noise Ratio (SNR). Periodic Jitter generates spurs in the ADC output spectrum. Another well-known challenge is to achieve precise coherent sampling. This paper proposes...
Clock jitter is a crucial factor in high speed and high performance application. Traditional jitter measurement method relies on precise and expensive instrumentations. This paper proposes a low cost jitter measurement and separation method. Instead of using traditional time internal analysis equipment, a simple Analog-to-Digital Converter (ADC) is used as the jitter measurement device. The clock...
Existing bus travel time prediction methods only provide a point prediction value of bus travel time. Relevance vector machine (RVM) is proposed for solving the problem. By using a probabilistic Bayesian learning framework, RVM can provide probabilistic prediction and obtain prediction value and variance of prediction error. For making use of historical data and current information, the running time...
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