نتایج جستجو برای: delay compensation

تعداد نتایج: 171302  

2014
GREGORY F. GRETHER Charles E. Young

Normal development depends on specific genetic and environmental inputs. When environments change, entire populations of organisms may simultaneously express maladaptive phenotypes. Selection in the new environment may gradually restore the ancestral phenotype by favouring alleles that counteract the environmental perturbation. This evolutionary process is called genetic compensation, and its e...

2008
Boussad Addad Said Amari

Research in networked control systems (NCS), deals with both communication networks and control. Usually, these two points of view are treated separately and rarely together in the same context. In this paper, an overall study of a networked control system is presented. First, a formal method to evaluate the response time of Ethernet-based automation architectures using a client server protocol...

2006
Junmin Wang Raul G. Longoria

This paper investigates the effect of real-time control system computational delay on the performance of a hybrid adaptive cruise control (ACC) system during braking/coasting scenarios. A hierarchical hybrid ACC system with a finite state machine (FSM) at the highrank and a nonlinear sliding mode controller (SMC) at the low-rank is designed based on a vehicle dynamics model with a brake-by-wire...

2008
JIPENG WANG BAHAR JALALI-FARAHANI

This paper reports the transistor-level design of a continuous-time 2-1 MASH sigma delta modulator with digital adaptive tuning of the cancellation logic. The modulator is designed for broadband wireless applications and provides 12 bits of resolution for a 10 MHz signal bandwidth. A direct approach to design the CT MASH modulator is used which reduces the coupling between the MASH stages. The ...

2009
Yuta IDA Chang-Jun AHN Takeshi KAMIO Hisato FUJISAKA Kazuhisa HAEIWA

In the mobile radio environment, signals are usually impaired by fading and multipath delay phenomenon. In such channels, severe fading of the signal amplitude and inter-symbol-interference (ISI) due to the frequency selectivity of the channel cause an unacceptable degradation of error performance. Orthogonal frequency division multiplexing (OFDM) is an efficient scheme to mitigate the effect o...

Journal: :طب و تزکیه 0

introduction: pulmonary tuberculosis is major problem worldwide and it is estimated one third the world population are already infected and each year 9 million people develop full blown tuberculosis of these 3 million die of the disease, annually. delay in diagnosis and treatment are major problems that play a significant role in all aspect of the disease from patient treatment to transmission ...

Journal: :EURASIP J. Adv. Sig. Proc. 2004
Gareth J. Parker

The ability of a DFT filterbank frequency domain filter to effect time domain delay is examined. This is achieved by comparing the quality of equalisation using a DFT filterbank frequency domain filter with that possible using an FIR implementation. The actual performance of each filter architecture depends on the particular signal and transmission channel, so an exact general analysis is not p...

2010
K. T. Block M. Uecker

Introduction: Radial sampling of k-space has gained strong interest over the past years due to inherent advantages such as lower sensitivity to motion and flow artifacts, continuous coverage of the k-space center information, and the absence of any ghosting artifacts. Further, because undersampling for radial trajectories leads to incoherent streaking artifacts instead of discrete aliasing, rad...

2007
Kenichiro Hirose Yasuo Manzawa Masahiro Goshima Shuichi Sakai

1. Introduction As the clock frequency and circuit integrity have been increased exponentially, power consumption has also increased drastically and process variations have been becoming a big issue. One of the most effective methods for low power computation is dynamic voltage scaling (DVS) with in-situ timing-error detection. Furthermore, it is robust to parameter variations in the extremely ...

2014
Fang-Ting Chou Chia-Min Chen Chung-Chih Hung

This paper presents a high-speed, low-glitch, and low-power design for a 10-bit binary-weighted currentsteering digital-to-analog converter (DAC). Instead of using large input buffers to drive a lot of current switches and re-timing latches, the proposed design uses variabledelay buffers with a compact layout to compensate for the delay difference among different bits, and to reduce glitch ener...

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