Digital Signal Processing

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Recent Submissions

Any replacements are listed further down

[4] viXra:1103.0007 [pdf] submitted on 3 Mar 2011

Calibrated Digital Imaging Systems

Authors: Vladimir F. Tamari, Masato Kobori
Comments: 13 pages.

The concept of simulating chosen information channels of a linear incoherent imaging system by projecting reference signals is proposed and the system's ability to restore severely distorted but stationary images is experimentally demonstrated. A particular instrument's object field is divided into N discrete 'points' whose individual simulated outputs is measured at N particular sampling points; the NxN output matrix F is the transfer matrix of the system, and being empirically derived, it precisely accounts for all diffractions, aberrations, distortions, peculiarities of the chosen object points and sensor size and distribution. As such F can become the basis for eliminating algorithmhardware mismatch in various restoration schemes. Calibration allows treating the instrument as an unknown 'black box', and imaging through a severely and arbitrarily distorting hardware is demonstrated. Other uses of F are to add or subtract the outputs of separate instruments viewing the same object on a pixel-by-pixel basis, and as a graphically or digitally presented measure of the instrument's local transfer function, and hence of image quality.
Category: Digital Signal Processing

[3] viXra:1004.0037 [pdf] submitted on 3 Apr 2010

Rank Distance Bicodes and Their Generalization

Authors: W. B. Vasantha Kandasamy, Florentin Smarandache, N. Suresh Babu, R.S. Selvaraj
Comments: 152 pages

In this book the authors introduce the new notion of rank distance bicodes and generalize this concept to Rank Distance n-codes (RD n-codes), n, greater than or equal to three. This definition leads to several classes of new RD bicodes like semi circulant rank bicodes of type I and II, semicyclic circulant rank bicode, circulant rank bicodes, bidivisible bicode and so on. It is important to mention that these new classes of codes will not only multitask simultaneously but also they will be best suited to the present computerised era. Apart from this, these codes are best suited in cryptography.
Category: Digital Signal Processing

[2] viXra:1003.0250 [pdf] submitted on 8 Mar 2010

Introduction to the mu-Bit

Authors: Florentin Smarandache, V. Christianto
Comments: 3 pages

Mu-bit is defined here as 'multi-space bit'. It is different from standard meaning of bit in conventional computation, because in Smarandache's multi-space theory, the bit is created simultaneously at multi-spaces. This new 'bit' term is different from multi-valued-bit already known in computer technology, for example as MVLong [8][9]. This new concept is also different from qu-bit from quantum computation terminology [10]. We know that using quantum mechanics logic we could introduce new way of computation with 'qubit' (quantum bit), but the logic remains Neumann. Now from the viewpoint of m-valued multi-space logic, we introduce a new term: 'mu-bit' (from ' multi-space bit').
Category: Digital Signal Processing

[1] viXra:0908.0032 [pdf] submitted on 7 Aug 2009

A Novel Window Function

Authors: John Fanson
Comments: 2 pages

A novel window function, also known as an apodization or tapering function is proposed. The window is similar in shape, spectral response and interpretation to the Hanning window.
Category: Digital Signal Processing

Recent Replacements

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