Kalman filtering approach to blind equalization
Pace, Phillip E.
MetadataShow full item record
Digital communication systems suffer from the channel distortion problem which introduces errors due to intersymbol interference. The solution to this problem is provided by equalizers which use a training sequence to adapt to the channel. However in many cases in which a training sequence is unfeasible, the channel must be adapted blindly. Most of the blind equalization algorithms known so far have problems of convergence to local minima. Our intention is to offer an alternative approach by using extended Kalman filtering and hidden Markov models. They seem to yield more efficient algorithms which take the statistics of the transmitted sequence into consideration. The theoretical development of these new algorithms is discussed in this thesis. Also these algorithms have been simulated under different conditions. The results of simulations and comparisons with existing systems are provided. The models for simulations are presented as MATLAB codes.
Approved for public release; distribution is unlimited.
Showing items related by title, author, creator and subject.
Effects of non-uniform windowing in a Rician-fading channel and simulation of adaptive automatic repeat request protocols Kmiecik, Chris G. (Monterey, California: Naval Postgraduate School, 1990-06);Two aspects of digital communication were investigated. In the first part, a FFT-based, M-ary FSK receiver in a Rician-fading channel was analyzed to determine the benefits of non-uniform windowing of sampled received data. ...
Smith, Jeffrey A. (Monterey, California: Naval Postgraduate School, 2009-12);This thesis examines the performance of single-carrier systems in a fading channel environment. A transmission through a fading channel results in changes in phase and amplitude that degrade system performance. A pilot ...
Morgan, William P. (Monterey, California. Naval Postgraduate School, 1992-03);Satellite detection of complex aerosols, in particular, Oil smoke over water and dust over land, is generally difficult. On 1 March 1991, a smoke plume generated by burning Kuwaiti oil wells and a dust storm over the ...