This paper introduces a new high-performance successive approximation register (SAR) analog-to-digital converter (ADC) designed for high-speed and low-power wireless local area network (WLAN) applications using SMIC 55 nm 1p8m CMOS process. The design employs several innovative techniques, including an improved bootstrap switch with high linearity, 4-reference voltage method to minimize capacit...

Equal-arm interferometric detectors of gravitational radiation allow phase measurements many orders of magnitude below the intrinsic phase stability of the laser injecting light into their arms. This is because the noise in the laser light is common to both arms, experiencing exactly the same delay, and thus cancels when it is differenced at the photo detector. In this situation, much lower lev...

This paper presents a new structure of the discrete time 0-2 MASH sigma-delta modulator implemented with VCObased quantizer in the second stage. The proposed scheme enhances the linearity of the VCO based quantizer, meanwhile it takes advantage of the intrinsic DEM function and first order noise shaping in the second stage. Besides, the matching requirement is relaxed and the digital canceling ...

This paper describes dark current characterization of two-stage charge transfer pixels, which enable a global shuttering and kTC noise canceling. The proposed pixel uses pinned diode structures for the photodiode (PD) as well as the storage diode (SD), thereby a very low dark current is expected. In this paper, effects of negative gate biasing and temperature dependency are discussed with devic...

A novel subspace projection approach was proposed to improve the robustness of adaptive beamforming and direction finding algorithms. The cost function of the signal subspace scaled multiple signal classification (SSMUSIC) is minimized in the uncertainty set of the signal steering vector, the optimal solution to the optimization problem is that the assumed steering vector can be modified as the...

Hands-free communication provides a safer communication system and driving for all road users especially the driver of a vehicle. Many studies have been made to look into the sound quality problem of an automobile and the perceive quality of sound due to noise and other ills that corrupt the speech signal to an extend that the far-end receiver could not even recognize the speaker. Here this pap...

Scalable quantum information processing requires that modular gate operations can be executed in parallel. The presence of crosstalk decreases the individual addressability, causing erroneous results during simultaneous operations. For superconducting qubits which operate microwave regime, electromagnetic isolation is often limited due to design constraints, leading signal deteriorate quality H...

In the past, several papers have reported on echo canceler (EC) structures developed for discrete multitone transmission (DMT) based asymmetric digital subscriber lines (ADSL) transmission. The most commonly known scheme, developed by Ho, Cioffi and Bingham, is based on canceling the received echo noise efficiently in time as well as in the frequency domain. The time domain processing part, whi...