A dual-clock MASH (multi-stage noise shaping) deltasigma modulator (DSM) is proposed for high performance analog-digital converter. This employs a DSM using a frequency modulated intermediate signal (FMDSM) for the last stage. The sampling clock frequency for the last stage can be increased due to the features of the FMDSM. It is shown that this can increase the SNR beyond the conventional MASH...

We consider the exploration-exploitation tradeoff in linear quadratic (LQ) control problems, where the state dynamics is linear and the cost function is quadratic in states and controls. We analyze the regret of Thompson sampling (TS) (a.k.a. posterior-sampling for reinforcement learning) in the frequentist setting, i.e., when the parameters characterizing the LQ dynamics are fixed. Despite the...

Advances of information-theoretic understanding of sparse sampling of continuous uncoded signals at sampling rates exceeding the Landau rate were reported in recent works. This work examines sparse sampling of coded signals at sub-Landau sampling rates. It is shown that with coded signals the Landau condition may be relaxed and the sampling rate required for signal reconstruction and for suppor...

We examine a multiple-input multiple-output (MIMO) sampling scheme for a linear time-invariant continuous-time MIMO channel. The input signals are modeled as multiband signals with different spectral supports, and the channel outputs are sampled on either uniform or periodic nonuniform sampling sets, with possibly different but commensurate intervals on the different outputs. This scheme encomp...

modern computerized technology enables more complex visual stimuli and test procedures to be in-corporated into conventional perimetry resulting in several developments in automated perimetry that have contributed to more efficient diagnosis and management of eye diseases. this review will cover a number of advances in automated perimetry including frequency doubling technology perimetry, short...

Infant-directed speech (IDS) supports language learning via mechanisms that are still not well-understood. Here, we adopt a 'temporal sampling' perspective to investigate whether rhythmic enhancements in the temporal structure of IDS could support multi-timescale neuronal oscillatory sampling of the speech signal by the infant brain. We compare natural maternal speech directed to infants at the...

Many of the performance tools available today sample the performance counters maintained by the system at different rates, with frequencies ranging from once every few seconds to once per minute. This paper is a study of the application of sampling theory to questions such as “What is a good sampling rate to use?”, “Do all metrics need to be sampled at the same rate?”, “What is the overhead of ...

In this article, we introduce a novel direct sampling indicator function for solving the inverse source problem (ISP) associated with Helmholtz equation. The proposed method is rigorously evaluated through numerical analysis of both singular and general sources, providing comprehensive assessment its performance. Several examples are given to validate theoretical estimations.