pls i need Wireless acess monitoring and control system based on digital door lock power point presentation.please any one post it ....etc

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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

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

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MICRO CONTROLLER BASED DIGITAL TACHOMETER. ....etc

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prjcts related to Construction of Touchscreen based portable Digital Clock ....etc

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

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

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1. A synopsis of recent work in edge detection using the DWT
2. Automated estimation of the upper surface of the diaphragm in 3-D CT images
3. Adaptive bilateral filter for sharpness enhancement and noise removal
4. Phase shifting for Non-separable 2D Hear wavelets
5. Universal Impulse noise filter based on Genetic programming
6. Efficient Non-local mean for De-noising of Textural patterns
7. Dynamic De-noising of tracking sequences
8. Analysis and compensation of rolling shutter effect
9. Coherent multi-scale image processing using dua ....etc

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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
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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

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