نتایج جستجو برای: eigen increment threshold

تعداد نتایج: 159021  

Journal: :journal of electrical and computer engineering innovations 0
somaye jalaei digital communications signal processing (dcsp) research lab., faculty of electrical engineering, shahid rajaee teacher training university (srttu), lavizan, 16788-15811, tehran, iran shahriar shirvani moghaddam digital communications signal processing (dcsp) research lab., faculty of electrical engineering, shahid rajaee teacher training university (srttu), lavizan, 16788-15811, tehran, iran

in this paper, a new approach for estimating the number of wideband sources is proposed which is based on rss or ism algorithms. numerical results show that the mdl-based and eit-based proposed algorithm havea much better detection performance than that in egm and aic cases for small differences between the incident angles of sources. in addition, for similar conditions, rss algorithm offers hi...

Journal: :Perception & Psychophysics 1981

Journal: :Chinese Physics Letters 2015

Journal: :Investigative Opthalmology & Visual Science 2016

Journal: :Vision research 1982
D B Kirk

A close correlation between Stiles's increment threshold (pi-mechanism) approach and color discrimination at threshold was found: a sharp transition from detection of two lights via two pi-mechanisms (pi 1 and pi 4) to detection via only one pi-mechanism (pi 1) was paralleled by a sharp decline from excellent discrimination between those two lights (even with the rods bleached) to no discrimina...

2014
Shahriar Shirvani Moghaddam Somaye Jalaei

In this paper, a new method for determining the number of coherent/correlated signals in the presence of colored noise is proposed which is based on the Eigen Increment Threshold (EIT) method. First, we present a new approach which combines EIT criterion and eigenvalue correction. The simulation results show that the new method estimates the number of noncoherent signals in the presence of colo...

2015
Duo-Fang Li Tian-Guang Cao Jin-Peng Geng Li-Hua Qiao Jian-Zhong Gu Yong Zhan

Species evolution is essentially a random process of interaction between biological populations and their environments. As a result, some physical parameters in evolution models are subject to statistical fluctuations. In this paper, two important parameters in the Eigen model, the fitness and mutation rate, are treated as Gaussian distributed random variables simultaneously to examine the prop...

Journal: :Investigative ophthalmology & visual science 2000
R M Hansen A B Fulton

PURPOSE To obtain and analyze scotopic increment threshold functions to test the hypothesis that rod photoreceptor immaturity accounts for the elevation of infants' over controls' dark-adapted thresholds and elevation of parafoveal over peripheral thresholds in infants. METHODS Using a preferential looking method, thresholds for detection of 2(o), 50 msec, blue stimuli presented 10(o) (parafo...

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