Publications related to Oversampling

A 300Hz 19b DR capacitive accelerometer based on a versatile front end in a 5th-order ΔΣ loop

This paper presents a 5th-order ΔΣ capacitive accelerometer. The ΔΣ loop is implemented in mixed signal, the global 5th-order filter having a 2nd-order analog and a 3rd-order digital part. The system can be used with a wide range of sensors, because the mi ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Antenna selection with superposition for 4 x 2 DSTTD systems

Ali H. Sayed

From 1820 4 times 4 binary matrices, 253 binary preprocessing matrices are designed for double space-time transmit diversity (DSTTD) systems with two 2 times 2 space-time block code (STBC) encoders. Among them, six matrices yielding the highest average min ...

IEEE2009

Capabilities for External Uniqueness

Martin Odersky, Philipp Haller

Unique object references have many important applications in object-oriented programming. For instance, with sufficient encapsulation properties they enable safe and efficient transfer of message objects between concurrent processes. However, it is a long- ...

2009

Ultrafast Structural Phase Transition Driven by Photoinduced Melting of Charge and Orbital Order

Paul Beaud

We use femtosecond x-ray diffraction to probe directly the structural dynamics of a charge ordered and orbitally ordered thin film of La0.42Ca0.58MnO3 initiated by an ultrafast optical pulse. At low excitation fluences we observe the displacive excitation ...

American Physical Society2009

MR Spectroscopy of the Human Brain With Enhanced Signal Intensity at Ultrashort Echo Times on a Clinical Platform at 3T and 7T

Rolf Gruetter, Giulio Gambarota

Recently, the spin-echo full-intensity acquired localized (SPECIAL) spectroscopy technique was proposed to unite the advantages of short TEs on the order of milliseconds (ms) with full sensitivity and applied to in vivo rat brain. In the present study, SPE ...

Wiley-Blackwell2009

A 1.8V 12-bit 230-MS/s pipeline ADC in 0.18um CMOS technology

Seyed Armin Tajalli, Yusuf Leblebici, Zeynep Toprak Deniz, Omer Can Akgun, Thomas Liechti

This paper describes the implementation of a 12-bit 230 MS/s pipelined ADC using a conventional 1.8V, 0.18μm digital CMOS process. Two-stage folded cascode OTA topology is used for improved settling performance. Extreme low-skew (less than 3ps peak-to-peak ...

IEEE2008

Reducing the number of comparators in multi-bit ΔΣ modulators

Maher Kayal

Multi-bit feedback, being one way of lowering ΔΣ modulators power consumption, has a major obstacle: the number of components in the internal analog-to-digital converter (ADC) and digital-to-analog converter (DAC). Nevertheless, the number of comparators i ...

2008

Dynamic PET Reconstruction Using Wavelet Regularization with Adapted Basis Functions

Michaël Unser, Dimitri Nestor Alice Van De Ville, Ildar Khalidov

Tomographic reconstruction from positron emission tomography (PET) data is an ill-posed problem that requires regularization. An attractive approach is to impose an

\ell_{ 1 }

-regularization constraint, which favors sparse solutions in the wavelet dom ...

Institute of Electrical and Electronics Engineers2008

Sampling Moments and Reconstructing Signals of Finite Rate of Innovation: Shannon Meets Strang-Fix

Martin Vetterli, Thierry Blu, Pier Luigi Dragotti

Consider the problem of sampling signals which are not bandlimited, but still have a finite number of degrees of freedom per unit of time, such as, for example, nonuniform splines or piecewise polynomials, and call the number of degrees of freedom per unit ...

Institute of Electrical and Electronics Engineers2007

A Low-Rate Identification Method for Digital Predistorters Based on Volterra Kernel Interpolation

A novel identification and digital predistortion scheme of weakly nonlinear passband systems such as RF power amplifiers (PA) is presented. It is well known that for the identification of weakly nonlinear systems, despite the spectral regrowth, it suffices ...

2007

Oversampling

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A 300Hz 19b DR capacitive accelerometer based on a versatile front end in a 5th-order ΔΣ loop

Antenna selection with superposition for 4 x 2 DSTTD systems

Capabilities for External Uniqueness

Ultrafast Structural Phase Transition Driven by Photoinduced Melting of Charge and Orbital Order

MR Spectroscopy of the Human Brain With Enhanced Signal Intensity at Ultrashort Echo Times on a Clinical Platform at 3T and 7T

A 1.8V 12-bit 230-MS/s pipeline ADC in 0.18um CMOS technology

Reducing the number of comparators in multi-bit ΔΣ modulators

Dynamic PET Reconstruction Using Wavelet Regularization with Adapted Basis Functions

Sampling Moments and Reconstructing Signals of Finite Rate of Innovation: Shannon Meets Strang-Fix

A Low-Rate Identification Method for Digital Predistorters Based on Volterra Kernel Interpolation

A 300Hz 19b DR capacitive accelerometer based on a versatile front end in a 5th-order ΔΣ loop

Antenna selection with superposition for 4 x 2 DSTTD systems

Ultrafast Structural Phase Transition Driven by Photoinduced Melting of Charge and Orbital Order

A 1.8V 12-bit 230-MS/s pipeline ADC in 0.18um CMOS technology

Dynamic PET Reconstruction Using Wavelet Regularization with Adapted Basis Functions

Capabilities for External Uniqueness

MR Spectroscopy of the Human Brain With Enhanced Signal Intensity at Ultrashort Echo Times on a Clinical Platform at 3T and 7T

Reducing the number of comparators in multi-bit ΔΣ modulators

A Low-Rate Identification Method for Digital Predistorters Based on Volterra Kernel Interpolation

Sampling Moments and Reconstructing Signals of Finite Rate of Innovation: Shannon Meets Strang-Fix