TAILIEUCHUNG - LECTURE 15: Data

Signals: In a communication system, data are propagated from one point to another by means of electromagnetic signals. A signal is a series of analogue or digital data. That is a varying voltage (either continuous or discrete) with time in an electronic communication system. Definitions of Data and Signals: Analog Data - Data represented by a continuous physical quantity whose magnitude is proportion a suitable function of the data (information). It can have more than two discrete values in contrast to digital data. . | CSN200 Introduction to Telecommunications, Winter 2000 Lecture_15 Data, Encoding and Transmission Data: What is Data? Any meaningful information is data. Otherwise it is noise or nonterrestrial data. Data in Electronic form: Any meaningful information can be represented into Electrical, Electromagnetic or Optical form for the purpose processing, storing and transmission. Electronic Data can be of two kind: Analogue and Digital Analogue Data - take on continuous values as time changes. ., Voice - uses microphone to convert to electrical form Video - uses video camera Temperature - uses sensor, like thermocouples Pressure - uses piezoelectric crystals Digital Data - take on discrete values, switching ON/OFF, text, integers, etc. Can be grouped into Bits - either a voltage or no voltage, 0 or 1 Bytes - group of 8 bits, like 0100 0001 is A in ASCII code What is Data (2nd time)? Normally we mean digital data processed by a computer. Signals: In a communication system, data are propagated from one point to another by means of electromagnetic signals. A signal is a series of analogue or digital data. That is a varying voltage (either continuous or discrete) with time in an electronic communication system. Definitions of Data and Signals: Analog Data - Data represented by a continuous physical quantity whose magnitude is proportional to a suitable function of the data (information). It can have more than two discrete values in contrast to digital data. Digital Data - Data represented by discrete values or conditions. Analogue Signals - A continuously varying electromagnetic wave that may be propagated over a variety of media. A series of Analog data. Digital Signal - A discrete or discontinuous signal, such as a sequence of voltage pulses. A series of digital data or bits. (Ref: Fig ,, , Slyke) Page 1 (7) CSN200 Introduction to Telecommunications, Winter 2000 Lecture_15 Data, Encoding and Transmission Encoding: The simplest end-to-end data .

• Thư viện thông tin
• DATA
• Electronic
• viễn thông
• Telecommunications
• Data Transmission
• Data Warehousing
• Basic Concepts of data warehousing
• Data warehouse architectures
• Some characteristics of data warehouse data
• The reconciled data layer
• Data transformation
• Data warehousing and data mining
• Data mining
• Data warehouse modelling
• Data mining functionalities
• Association rule mining
• FP growth algorithm
• K Nearest neighbor classification
• Data visualization
• Lecture note Data visualization
• Data structures
• Data Visualization with C
• Data visualization with matlab
• Effective graphical display
• Lecture Data mining
• Bài giảng Khai thác dữ liệu
• Data warehouse
• Data warehouse architecture
• Data warehouse implementation
• Data warehouse—subject oriented
• Data intensive applications
• A survey on Big Data
• challenges techniques and technologies
• Big Data problems
• Big Data in commerce
• Big Data in business
• công nghệ thông tin
• kỹ thuật lập trình
• Oreilly Ado Dot Net Cookbook Ebook Lib
• Mapping
• NET Data Provider Data Types to
• NET Framework Data Types
• Data Analysis Techniques
• Architecting the Data
• algorithms
• data structure lectures
• structured document data
• teaching data structures
• algorithms in data structures
• Data Driven Ciphers
• Suitable
• Data Dependent Operations
• Data Driven Primitives
• The Symmetric Cryptosystems
• Data Driven Block ciphers
• Programming Languages
• Implementation of Data Structures
• Elementary data types
• Structured data types
• Data objects
• Data types
• Business data communications
• Data communications
• Data link layer
• Network criteria
• Data communications system
• Ebook Data structures and algorithms made easy
• Data structures and algorithms made easy
• Data structures and algorithmic puzzles
• Data structures for storing strings
• Algorithms design techniques
• Data communications networks
• Media access control