TAILIEUCHUNG - DSP A Khoa học máy tính quan điểm P2

We are now ready to commence our study of signals and signal processing systems, the former to be treated in Part I of this book and the latter in Part II. Part III extends the knowledge thus gained by presentation of specific algorithms and computational architectures, and Part IV applies all we will have learned to communications and speech signal processing. At times one wants to emphasize signals as basic entities, and to consider systems as devices to manipulate them or to measure their parameters | Digital Signal Processing A Computer Science Perspective k i athan Copyright 2000 John Wiley Sons Inc. PSnt ISBN 0-471-29546-9 Online ISBN 0-471-20059-X Part I Signal Analysis Digital Signal Processing A Computer Science Perspective Jonathan Y. Stein Copyright 2000 John Wiley Sons Inc. Print ISBN 0-471-29546-9 Online ISBN 0-471-20059-X 2 Signais We are now ready to commence our study of signals and signal processing systems the former to be treated in Part I of this book and the latter in Part II. Part III extends the knowledge thus gained by presentation of specific algorithms and computational architectures and Part IV applies all we will have learned to communications and speech signal processing. At times one wants to emphasize signals as basic entities and to consider systems as devices to manipulate them or to measure their parameters. The resulting discipline may then be called signal analysis. At other times it is more natural to consider systems as the more fundamental ingredients with signals merely inputs and outputs to such systems. The consequence of this viewpoint is called signal processing. This term is also most commonly used when it is not clear which aspect one wishes to stress. In this chapter we introduce the concept of a signal. We will see that there are analog signals and digital signals and that under certain conditions we can convert one type into the other. We will learn that signals can be described in terms of either their time or frequency characteristics and that here too there are ways to transform one description into the other. We present some of the simplest signals and discover that arbitrary signals can be represented in terms of simple ones. On the way we learn how to perform arithmetic on signals and about the connection between signals and vectors. Signal Defined The first question we must ask when approaching the subject of signal analysis is What exactly do we mean by signal 1 The reader may understand .

• Kĩ thuật Viễn thông
• DSP
• khoa học máy tính
• quan điểm máy tính
• hệ thống xử lý tín hiệu
• kiến trúc tính toán
• Mixed signal
• and DSP Design Techniques
• Analog Devices
• DSP hardware
• DSP chips
• Lập trình DSP
• truyền thông di động
• áp dụng DSP
• thông tin liên lạc
• xử lý tín hiệu
• Điều khiển động DC
• Điều khiển logic mờ
• Cạc DSP 1104
• Điều khiển động cơ DC dùng DSP
• Động cơ điện một chiều
• Fully DSP based control of an active voltage conditioner
• Active voltage conditioner
• Fully DSP based control
• Digital signal processor
• Floating point digital signal processor
• digital signal
• DSP Fundamental
• frequency analysis
• adaptive filtering
• software
• phương pháp DTC
• ứng dụng Logic mờ
• momen động cơ
• động cơ không đồng bộ
• bộ điều khiển mờ
• ứng dụng DSP DS1104
• DSP development
• mathematics
• physics
• scientific reports
• research projects
• scientific research