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Title          
 Adaptive Equalization Techniques using Recurs...  
 
Abstract    

In this project, we extend the use of methods of least squares to find a recursive algorithm solution of adaptive transversal filter. Given the LS solution at any time instant n-1, we find the solution at time n recursively using past solution and newly arrived data. This algorithm is known as Recursive Least Squares (RLS) algorithm. We show the convergence rate of RLS algorithm is faster than LMS algorithm by comparing the learning curves of two algorithms for specified channel response.

 
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Added By - ravigarg
Subject - Electrical Engineering
Document Type - White Paper
 
   
   

 

Title          
 Blind De-convolution of BPSK and QPSK modulat...  
 
Abstract    

Signal processing is the most important part of most of the electronics and software system designed for electronics. Signal processing plays a very important role in most of the wireless communication, image processing and Speech processing problems. Most of the applications of wireless communication involve transmission of data accurately from source to destination. Most often, the transmitted signal suffers from noise addition, interference and other medium of transmission (also known as channel) factors. In most cases, we can approximate the channel by a Linear Time-Invariant (LTI) system. Thus, a signal can be assumed to pass through a LTI system with impulse response of channel before reaching destination.At the receiver end, we need to perform some kind of post-processing to nullify the effect of channel LTI filter. So, the problem reduces to find the input given the output and channel LTI filter. However, in most of the cases, channel LTI filter is not known before hand. So, the problem of finding input becomes more difficult. There have been a lot of algorithms introduced in literature which try to find LTI filter based on knowledge of input and output signals. Since, the whole motive of the problem is to find the input s...

 
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Added By - ravigarg
Subject - Electrical Engineering
Document Type - Term Paper
 
   
   

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