hi....we want the project abstract of lcd based digital alarm clock with digital thermometer using 8051/89c51........ ....etc

[:=Read Full Message Here=:]

Digital-to-Analog Analog-to-Digital
Data Handling Systems
Both data about the physical world and control signals sent to interact with the physical world are typically analog or continuously varying quantities.
In order to use the power of digital electronics, one must convert from analog to digital form on the experimental measurement end and convert from digital to analog form on the control or output end of a laboratory system.
Digital-to-Analog Conversion
When data is in binary form, the 0's and 1's may be of s ....etc

[:=Read Full Message Here=:]

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

[:=Read Full Message Here=:]

Prepared by:
Ron Hranac


Digitally Modulated Carrier Amplitude



•When measuring the amplitude of a digitally modulated carrier, make certain you are measuring its average power level

•Use test equipment that performs automated measurements, rather than trying to make error-prone manual measurements that require bandwidth, IF filter, log amplifier and detection corrections


for more details, please visit
http://downloads.net1.cc/Other%20stuff/CaTV%20docs/Downstream%20RF%20Troublshooting.pdf

....etc

[:=Read Full Message Here=:]

APPLICATIONS OF DIGITAL OBJECT COUNTER USING LDR & IC 555 MONOSTABLE MULTIVIBRATOR ....etc

[:=Read Full Message Here=:]

Abstract:

Digital audio broadcasting, DAB, is the most fundamental advancement in radio technology since that introduction of FM stereo radio. It gives listeners interference - free reception of CD quality sound, easy to use radios, and the potential for wider listening choice through many additional stations and services.

DAB is a reliable multi service digital broadcasting system for reception by mobile, portable and fixed receivers with a simple, non-directional antenna. It can be operated at any frequency from 30 MHz ....etc

[:=Read Full Message Here=:]

i need information in the form of ppt , what downstream does once the broth is transferred to them from Upstream and each technical/ chromatographic steps involved in between. I want to know this in detail as I already have a superficial idea about every step.

Kindly do the needful.

Thanks and regards
Jitendra ....etc

[:=Read Full Message Here=:]

FADEC is the acronym for Full Authority Digital Engine Control. It is a system consisting of a digital computer (called EEC /Electronic Engine Control/ or ECU /Electronic Control Unit/) and its related accessories which control all aspects of aircraft engine performance. FADECs have been produced for both piston engines and jet engines, their primary difference due to the different ways of controlling the engines.

Electronics' superior accuracy led to early generation analogue electronic control first used in Concorde's Rolls-Royce Olympus 5 ....etc

[:=Read Full Message Here=:]

A/D and D/A Conversion,analog to digital and digital to analog


Data Converter impacts the factor for the performance of the overall radio design
Requirements: very high sampling rates, high number of effective quantization bits, an operating bandwidth of several Ghz, a large spurious-free dynamic range, a reasonable price
DAC and ADC converters
Sampling and Quantization
Nyquist Zones
Aliasing
Bandpass filtering – uses image to translate bandpass signals to baseband
Errors occurs in Quantization
....etc

[:=Read Full Message Here=:]

detailed working of a DIGITAL NOCTURNAL NUISANCE using logic gates ....etc

[:=Read Full Message Here=:]