By Richard Tolimieri
This graduate-level textual content offers a language for figuring out, unifying, and imposing a large choice of algorithms for electronic sign processing - specifically, to supply principles and strategies which can simplify or maybe automate the duty of writing code for the most recent parallel and vector machines. It hence bridges the space among electronic sign processing algorithms and their implementation on various computing systems. The mathematical proposal of tensor product is a routine subject during the ebook, due to the fact that those formulations spotlight the information circulate, that is specially very important on supercomputers. due to their value in lots of functions, a lot of the dialogue centres on algorithms concerning the finite Fourier remodel and to multiplicative FFT algorithms.
Read or Download Algorithms for Discrete Fourier Transform and Convolution (Signal Processing and Digital Filtering) PDF
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Additional info for Algorithms for Discrete Fourier Transform and Convolution (Signal Processing and Digital Filtering)
By the divisibility condition above, (f (x), g(x)) =- a(x) f (x) b(s)g(x), where a(x) and b(x) are polynomials over F . 22) for some polynomials ao(x) and bo(x) over F. Arguing as in section 2, we have the following corresponding results. 9 If f (x) I g(x)h(x), (f (x), g(x)) = 1, then f (x) I h(x). 7 (Unique Factorization) If f (x) is a polynomial over F, then f(x) can be written uniquely, up to an ordering of factors, as f (x) = apV (x) • • • gr (x), where a E F, pi(x), , pr(x) are nicrnir irreducible polynomials over F and al > 0, , > 0 are integers.
D(x) is a common divisor of f (x) and g(x). II. Every divisor of f(x) and g(x) in F[x] divides d(x). Equivalently, d(x) is the unique monic polynomial over F, which is a common divisor of f (x) and g(x) of maximal degree. We call d(x) the greatest common divisor of f(x) and g(x) over F and write d(x) = (f (x), g(x)). By the divisibility condition above, (f (x), g(x)) =- a(x) f (x) b(s)g(x), where a(x) and b(x) are polynomials over F . 22) for some polynomials ao(x) and bo(x) over F. Arguing as in section 2, we have the following corresponding results.
We see that Matm x L (b 0 a) = (MatLx m(a b))t. Thus, interchanging order in the tensor product corresponds to matrix transpose. 1, a 0 b corresponds to the 2 x 3 array [ aobo al bo a2 bo aobi al a2bi while the vector b 0 a corresponds to the 3 x 2 array [boa° boa' bo a2 bi ao bi al • bi a2 general, we can describe matrix transposition in terms of a permutation of an indexing set. Consider first the L x M array Y = [ Y1,TTI]o