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Subjects: *COMPUTER simulation; *SIMULATION methods & models; *ECHO suppression
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Source:
Electronics & Communications in Japan, Part 3: Fundamental Electronic Science. Nov90, Vol. 73 Issue 11, p7-20. 14p.
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Abstract:
Finite wordlength effects on the steady-state characteristics of finite impulse response adaptive digital echo cancellers are considered. Focusing on an FIR-type ... Copyright of Electronics & Communications in Japan, Part 3: Fundamental Electronic Science is the property of John Wiley & Sons, Inc. and its content may not be ...
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Subjects: *DIGITAL signal processing; *ALGORITHMS; *NUMERICAL analysis
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Source:
Electronics & Communications in Japan, Part 3: Fundamental Electronic Science. Dec90, Vol. 73 Issue 12, p37-45. 9p.
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Abstract:
Recently, for signal processing such as echo cancellation and equalization it is required to develop IIR-adaptive digital filters. This paper proposes ... Copyright of Electronics & Communications in Japan, Part 3: Fundamental Electronic Science is the property of John Wiley & Sons, Inc. and its content may not be ...
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Subjects: *ECHO suppression; *ORTHOGONAL functions; *DIGITAL electric filters
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Source:
Electronics & Communications in Japan, Part 1: Communications. Jan90, Vol. 73 Issue 1, p55-63. 9p.
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Abstract:
Echo cancellers are applied increasingly to long-distance telephone channels and voice communication systems for improvement of conversation quality. However, the adaptive digitalCopyright of Electronics & Communications in Japan, Part 1: Communications is the property of John Wiley & Sons, Inc. and its content may not be copied or ...
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Subjects: *ORTHOGONAL functions; *ADAPTIVE filters; *DIGITAL signal processing
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Source:
Electronics & Communications in Japan, Part 3: Fundamental Electronic Science. May90, Vol. 73 Issue 5, p96-104. 9p.
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Abstract:
The system of orthogonal functions is very useful in science and engineering and the theory on the orthogonal function system in the continuous time domain ... Copyright of Electronics & Communications in Japan, Part 3: Fundamental Electronic Science is the property of John Wiley & Sons, Inc. and its content may not be ...
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Subjects: *DISTANCE education
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Source:
Journal of Research on Computing in Education. Spring90, Vol. 22 Issue 1, p247. 18p.
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Abstract:
Describes how the delivery of instruction over distance could become an even more powerful and useful educational medium through incorporating ideas from cooperative
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Subjects: *PICTURE perception
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Source:
Journal of Biological Education (Society of Biology). Autumn90, Vol. 24 Issue 3, p161. 12p. 1 Black and White Photograph, 4 Diagrams, 5 Charts, 6 Graphs.
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Abstract:
Part I. Examines theoretical and empirical advances in picture perception. Parameters for the study of picture perception; Summary of picture function in science texts; Within-picture ...
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Subjects: *MUSIC education
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Music Educators Journal. Jul90, Vol. 77 Issue 1, p17. 7p. 1 Black and White Photograph.
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Abstract:
Looks at the use of technology in music classrooms, concert halls, and every facet of music learning, instruction and research. National ...
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Subjects: *MATHEMATICS education
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Source:
Newsweek. Fall/Winter90, Vol. 116 Issue 10, p16. 4p. 2 Illustrations, 2 Diagrams, 1 Graph.
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Stresses that it is time to minimize rote learning and concentrate on teaching children how to think. Changes being made by ...
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Subjects: *USER interfaces; *COMPUTER users
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Source:
Human-Computer Interaction. 1990, Vol. 5 Issue 2/3, p191. 30p. 7 Charts.
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Abstract:
Analyzes the foundation for the design of user interface technology. Principles of exploratory learning of computer systems; Role of user goals ...
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