Majid Mobini

12 Questions 7 Answers 0 Followers

Questions related from Majid Mobini

What are the differences between PCA and SVD decomposition approaches?

Is there essentially a difference? Which one is optimal or low complexity ? is here a relation with the rank?

09 September 2019 2,207 3 View

What is the simplest way to solution of a single variable nonlinear equation?

what is the simplest way to solution of a single variable nonlinear equation?

05 May 2017 8,318 2 View

Is the Output of correlator always Gaussian?

For a channel with white Gaussian noise , is the Output of correlator always Gaussian random variable? (for different modulations and coherent or non-coherent detection, etc.)for example,...

05 May 2017 9,720 0 View

What is definition of a convex monotonic increasing function?

Hi, what is definition of a convex monotone increasing (or decreasing) function?is it possible that a convex function with a global minimum, be a monotonic increasing function? thanks

04 April 2017 307 1 View

Please consider standard hmax model and a cell array as output of the c2 layer. which of them is our feature vector for classification?

hi dear all; consider standard hmax matlab implementation:http://riesenhuberlab.neuro.georgetown.edu/hmax.html if we work with 10 images for example, this program returns c2 in the form of a 1x8...

12 December 2016 5,015 1 View

Is there any mathematical demonstration for advantage of the chaotic spreading sequence compared with the gold or other spreading sequences?

08 August 2016 378 0 View

Can we measure the effect of noise on a chaotic signal using the lyapunov exponent?

hi dear all.assume that a chaotic signal is received from the two different noisy channels. can we measure the effect of noise on a chaotic signal using the Lyapunov exponent? or you prefer...

08 August 2016 5,411 4 View

What are the today's challenges in chaotic based wireless communications researches ?(chiefly wireless communication)

what is the today's challenge in chaotic based communications ?

01 January 2015 10,076 3 View

Simultaneous Non coherent spectrum sensing and Non coherent transmission in cognitive radio systems?

Hi.consider a system with Simultaneous Non coherent spectrum sensing and "Non coherent transmission".Whether there superiority over other systems with Non coherent spectrum sensing and "coherent...

01 January 1970 8,313 0 View

Is this logarithmic expression a convex function?

hi dear all, is this a convex function (concave , GP ,..... with a systematic solution) f(x)=log2( 1+((x^2)/(2x+1))).thank you

01 January 1970 8,544 3 View

Hi dear all; consider 5 complex nonlinear equations with 5 variables. what is the simplest method for solution?

hi dear all; consider 5 complex nonlinear equations with 5 variables. what is the simplest method for solution?

01 January 1970 4,252 6 View

How can we calculate the entropy of chaotic signals in a communication system?

Hi, How can we calculate the entropy of chaotic signals? Is there a simple method or formula for doing this?

01 January 1970 8,181 2 View