Ebook Principles of communications

Principles of Communications pps

Principles of Communications pps

... a0 b L c a1 Signal-flow graph Exponent of D: Hamming weight of encoder output on that branch Exponent of L: number of nonzero message bits 29 Free distance of a conv code  State equations: b = ... Free distance of a conv code      Performance of a conv code depends on decoding algorithm and distance properties of the code Free distance, denoted by dfree, is a measure of...

Ngày tải lên: 11/07/2014, 21:20

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Principles of communications

Principles of communications

... p( x j ) p( x j ) units of information  The base of the logarithm     10 →the measure of information is hartley e →the measure of information is nat →the measure of information is bit Examples ... bits required = log 32 = bits! Therefore H(X) = number of bits required to represent a random event How many bits are needed for: Outcome of a coin toss “tomorrow is a Wednesday”...

Ngày tải lên: 03/01/2016, 21:08

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Principles of Digital Communication Systems and Computer Networks

Principles of Digital Communication Systems and Computer Networks

... đặc biệt để khắc phục ảnh hưởng nhiễu Hai khía cạnh đưa Shannon báo “A Maththemathical Theroy of Communication xuất năm 1948 Bell System Technical Journal - nơi đưa lý thuyết thông tin Shannon ... định lý quan trọng cho kỹ sư truyền thông Tài liệu tham khảo C E Shannon "A Mathematical Theory of Communication. " Bell System Technical Journal, Vol 27, 1948 Tất kỹ sư truyền thông phải đọc...

Ngày tải lên: 18/09/2012, 10:13

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Báo cáo y học: "Cancer control through principles of systems science, complexity, and chaos theory: A mode"

Báo cáo y học: "Cancer control through principles of systems science, complexity, and chaos theory: A mode"

... stagnation and anarchy…place where a complex system can be spontaneous, adaptive, and alive” [4] The similarity of a fractal pattern and cancer growth can be seen in a comparison of Mandelbrot’s drawing ... various cycles of living entities as an interrelated and a multifunctional system It connects concepts of systems, complexity, and chaos with features of s...

Ngày tải lên: 26/10/2012, 10:04

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