This article describes methods of speech processing especially for cellular systems and internet voice communication.Oneof the most popular formats used for speech processing is PCM (Pulse Code Modulation) format, which has a high processing accuracy.However,long words and timeconsuming multiply operationsrestricts the usage of PCM codes.More advantageous to that,DPCM (Differential Pulse Code Modulation), which has a similar resolution as PCM but operates on shorter word lengths was developed DPCM uses delta modulation (DM) codes to obtain bett ....etc

[:=Read Full Message Here=:]

A PIPELINE FAST FOURIER TRANSFORM FOR DIGITAL SPECTRUM ANALYSIS

Abstract:- This paper describes a novel structure for a hardwired fast Fourier transform (FFT) signal processor that promises to permit digital spectrum analysis to achieve throughput rates consistent with extremely wide-band radars. The technique is based on the use of serial storage for data and intermediate results and multiple arithmetic units each of which carries out a sparse Fourier transform. Details of the system are described for data sample sizes that are binary multi ....etc

[:=Read Full Message Here=:]

The Discrete Cosine Transform


Introduction
Transform coding constitutes an integral component of contemporary image/video processing
applications. Transform coding relies on the premise that pixels in an image exhibit a certain
level of correlation with their neighboring pixels. Similarly in a video transmission system,
adjacent pixels in consecutive frames2 show very high correlation. Consequently, these
correlations can be exploited to predict the value of a pixel from its r ....etc

[:=Read Full Message Here=:]

my requist : text hiding using discrete cosine transform in matlab code
my requist : text hiding using discrete cosine transform in matlab code ....etc

[:=Read Full Message Here=:]

A FAST PIPELINED IMPLEMENTATION OF TWO DIMENSIONAL INVERSE DISCRETE COSINE TRANSFORMS

Abstract:- The inverse discrete cosine transform (IDCT) is a significant component in today s JPEG and MPEG decoders. Of all the stages in the decoding process of a JPEG file, the IDCT is the most computationally intensive. Hence, we require fast and efficient implementations, either in software or hardware. Numerous individual designs for computing the ID-IDCT have been proposed. Our 2D-IDCT incorporates two of our ID-IDCT cores and a transpose network to ....etc

[:=Read Full Message Here=:]

A 64 Point Fourier Transform Chip

Fourth generation wireless and mobile system are currently the focus of research and development. Broadband wireless system based on orthogonal frequency division multiplexing will allow packet based high data rate communication suitable for video transmission and mobile internet application. Considering this fact we proposed a data path architecture using dedicated hardwire for the baseband processor. The most computationally intensive part of such a high data rate system are the 64-point inverse FFT in the ....etc

[:=Read Full Message Here=:]

Engineering mathematics textbook for 3rd sem ....etc

[:=Read Full Message Here=:]

can u please guide us code for image compression using fft in matlab ....etc

[:=Read Full Message Here=:]

AUTOMATIC DETECTION OF ARRHYTHMIA IN ECG SIGNAL USING DISCRETE COSINE TRANSFORM



ABSTRACT

The Electrocardiogram (ECG) is the bioelectrical activity of the signal of the heart which represents the cyclic rhythm of contraction and relaxation of the heart muscles.
An arrhythmia is an irregularity with the speed or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm.
The P,Q,R,S and T waves of the ECG signal contains all important features, t ....etc

[:=Read Full Message Here=:]

Introduction
The DSP world today is ruled by different transforms. Discrete Fourier transforms are most used. So is the fast Fourier transform, which is the faster version of DFT. Suppose we take FFT of a signal. On taking the inverse fast Fourier transform, we except the output to be the same as the input. This is called the invertibility property. But on most occasions, disappointment is the result. This is due to the finite word length of the registers used to store the samples and the coefficients. This seminar introduces a method called i ....etc

[:=Read Full Message Here=:]