نتایج جستجو برای: bandwidth feedback
تعداد نتایج: 199856 فیلتر نتایج به سال:
learning-oriented assessment seeks to emphasise that a fundamental purpose of assessment should be to promote learning. it mirrors formative assessment and assessment for learning processes. it can be defined as actions undertaken by teachers and / or students, which provide feedback for the improvement of teaching and learning. it also contrasts with equally important measurement-focused appro...
in this paper, a state feedback h¥ controller is proposed in order to design an active queue management (aqm) system based on congestion control algorithm for networks supporting tcp protocols. in this approach, the available link bandwidth is modeled as a time-variant disturbance. the purpose of this paper is to design a controller which is capable of achieving the queue size and can guarantee...
Active Congestion Control (ACC) applies active networking to feedback congestion control an a high bandwidth-delay product network, shortening the feedback loop by filtering traffic in the network near congestion. This paper describes recent simulation results showing the function of the system in TCP networks across a range of bandwidth-delay products. It also discusses the implementation of a...
In this paper, a 10-Gb/s inductorless CMOS receiver front end is presented, including a transimpedance amplifier and a limiting amplifier. The transimpedance amplifier incorporates Regulated Cascode (RGC), active-inductor peaking, and intersecting active feedback circuits to achieve a transimpedance gain of 56 dB and a bandwidth of 8.27 GHz with a power dissipation of 35 mW. The limiting amplif...
We show that when subjected to high gain, delay-line optoelectronic oscillators can display a strongly multimode behavior depending on the feedback bandwidth. We found that this dynamical regime may arise when the bandwidth of the feedback loop spans over several hundreds of ring cavity-modes, and also when the oscillator is switched on abruptly. Such a persistent multimode regime is detrimenta...
a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...
We address the problem of fairness in a feedback-controlled multicast video distribution scheme. In a fair scheme each receiver should receive a video stream with a quality that is commensurate with its capabilities or the capabilities of the path leading to it, regardless of other receivers or network paths. This fairness problem results from the fact that multi-cast communication trades econo...
This paper presents a lead-lag compensator design for a MEMS-fabricated microgyroscope. The microgyroscope is basically a high Q system, thus the bandwidth is limited to be narrow. To overcome the open-loop performance limitations, a feedback controller is designed to improve the resolution, bandwidth, linearity, and bias stability of the microgyroscope. The feedback controller is applied to th...
In this paper, the design of linear amplifiers for current sources with very low, or voltage sources with very high impedance is discussed. In designing negative-feedback amplifiers for these sources, the loopgain is often low as a result of the source impedance, thus making it difficult to obtain a sufficiently high bandwidth. Here, it is proposed to use CB or CC stages in front of a negative-...
A 3-port isolated circuit providing 1:3 fanout, buffering and amplification over a multi-megahertz bandwidth is presented. The circuit accepts a single input and drives 3 independently isolated output channels, up to +/10 V into 50 ohms. The input and output isolation is supplied via a dual optocoupler, and the power isolation is achieved with DC/DC converters. In each channel, a voltage feedba...
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