A Frequency Domain Approach To Crosstalk identificaion in xDSL Systems



Introduction to DSL


DSL :
High bit rate digital information over telephone subscriber lines
Basic types of DSL
> Basic Rate ISDN (up to 160 kbps)
> HDSL ( up to 1.544 or 2.048 Mbps)
> ADSL (up to 1Mbps(u.s) ,9Mbps(d.s))
> VDSL (up to 52 d.s and 6.4Mbps u.s)

Why Noise Estimation?


Tele phone cables gives rise to a series ....etc

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i want verilog code for introduce the crosstalks in circuits for analyzing the delay. ....etc

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EFFICIENT ON CHIP CROSSTALK AVOIDANCE CODEC DESIGN based on time delay




Sir/Madam

kindly send me any power point paper presentation on


EFFICIENT ON CHIP CROSSTALK AVOIDANCE CODEC DESIGN based on time delay



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[email protected]

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In the development of packaging of electronics the aim is to lower cost, increase the packaging density, and improve the performance while still maintaining or even improving the reliability of the circuits. Flip chip microelectronic assembly is the direct electrical connection of face-down electronic components onto substrates, circuit boards, or carriers, by means of conductive bumps on the chip bond pads since the chip is directly attached to the substrate, board, or carrier by the conductive bumps. Flip chip has advantage in size, performan ....etc

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Electronics without silicon is unbelievable, but it will come true with the evolution of Diamond or Carbon chip. Now a day we are using silicon for the manufacturing of Electronic Chip's. It has many disadvantages when it is used in power electronic applications, such as bulk in size, slow operating speed etc. Carbon, Silicon and Germanium are belonging to the same group in the periodic table. They have four valance electrons in their outer shell. Pure Silicon and Germanium are semiconductors in normal temperature. So in the earlier days they a ....etc

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Abstract
The past decade has witnessed substantial progress towards the application of low bit rate speech coders to civilian and military communications as well as computer related voice applications. Central to this progress has been the de- velopment of new speech coders capable of producing high quality speech at low data rates. Most of these coders incorporate mechanisms to: synthesize speech using Linear Predictive Coding, represent the spectral properties of speech, pro- vide speech waveform matching, and optimize the coder's perform ....etc

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cross talk and types of cross talk how to aviod crosstalk...we need project on crosstalk avoidance ...send information regarding to cross talk ....etc

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Adaptive Precoding for Downstream Crosstalk Precancelation in DSL Systems Using Sign-Error Feedback
Abstract
The performance of many very high bit rate digitalsubscriber line (VDSL) systems is limited by the effects of crosstalkamong the wires in a bundle. For the downstream, a precoder cancompensate for this, provided that some crosstalk channel informationis available at the transmitter. In this paper, we investigatethe issue of precoder design based on a particular type of feedback:it is assumed that each receiver sends back the (c ....etc

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A Design of HDB3 CODEC Based on FPGA


ABSTRACT
The basic principles and structure of HDB3 was briefly introduced in this paper, and the shortcomings of the existing HDB3 encoder and decoder was analyzed. Then a new design of HDB3 encoder and decoder based on FPGA was proposed, and the hardware design circuit and software simulation were introduced. The simulation was achieved through the VERILOG-HDL in EP2C35F672C8 chip of CycloneII series in the d ....etc

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