نتایج جستجو برای: detection filter

تعداد نتایج: 676339  

2011
Harsimranjit Singh Gill Gurjot Singh Gaba Nancy Gupta

Code division multiple access (CDMA) is a most promising technique for using channel efficiency. Multiple access interference (MAI) is a limiting factor for the capacity of CDMA system. Proposed design is based on the step by step practical implementation of matched filter (MF) detection and minimum mean squared error (MMSE) detection. Thus, providing flexibility of variations in all parameters...

2012
R. Pushpavalli G. Sivaradje Yong Hoon Lee

Asymmetric Trimmed Median Filter for Image denoising is proposed in this paper. This technique can be used for restoring the images extremely corrupted with random valued impulse noise. This paper introduces an impulse detection technique and decision based median filter for restoring the corrupted images. The detection technique is used for discriminating between corrupted and uncorrupted imag...

2003
Paulo P. Monteiro Manuel Violas Rui Sousa José Ferreira da Rocha

In the design of optical communication systems for multigigabit transmission rates, a special care must be given to the post-detection receiver filter. A well-designed post-detection filter, effecting appropriate pulse shaping/noise reduction, can reduce significantly the degradation caused by the system impairments. The received solitons occupy just a fraction of the bit period, a feature that...

2005
H. Jamouli D. Sauter

In this paper, we present an unified approach for fault detection and isolation in discrete-time systems affected by noises and faults on measurement and state equations. The proposed robust fault detection filter will be designed under less restrictive conditions compared with classical fault detection filter. After having parameterized the minimum-time left inverse of the system, the degrees ...

2003
Terran Lane

In the computer security task of anomaly detection, we wish to measure not only the classification accuracy of a detector but also the average time to detection. This quantity represents either the average time between false alarms (for a valid user) or the average time until a hostile user is detected. We examine the use of noise suppression filters as componants of a learning classification s...

Journal: :EURASIP J. Adv. Sig. Proc. 2017
Sajid Khan Dong-Ho Lee

A new impulsive noise removal filter, adaptive dynamically weighted median filter (ADWMF), is proposed. A popular method for removing impulsive noise is a median filter whereas the weighted median filter and center weighted median filter were also investigated. ADWMF is based on weighted median filter. In ADWMF, instead of fixed weights, weightages of the filter are dynamically assigned with th...

2014
Niraj Tiwari T. Liu J. Sun N. Zheng X. Tang H. Y. Shum Todd A. Ell

Saliency Detection is very important for image and video processing application. This paper presents Saliency Detection for video processing. The sample video is converted in the form of Frames. Now Saliency algorithm is apply to the frames of images to filter the background from the video frames. The frames are filter in four parts, first the Hyper Complex Form algorithm is apply to separate t...

Journal: :Signal Processing 2005
Deniz Erdogmus Rati Agrawal José Carlos Príncipe

Matched filters are the optimal linear filters for signal detection under linear channel and white noise conditions. Their optimality is guaranteed in the additive white Gaussian noise channel due to the sufficiency of second order statistics. In this paper, we introduce a nonlinear filter for signal detection based on the Cauchy-Schwartz quadratic mutual information (CS-QMI) criterion. This fi...

In this paper a novel method is introduced for target detection in bistatic passive radars which uses the concept of correntropy to distinguish correct targets from false detections. In proposed method the history of each cell of ambiguity function is modeled as a stochastic process. Then the stochastic processes consist the noise are differentiated from those consisting targets by constructing...

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