Digital data communication techniques

Ngày tải lên: 29/09/2013, 20:20

... measuring errors in detected data due to a communications channel. Figure 5 A (b) Block parameters digital signal source Summer: Page 6 The summer represents the communications channel in which ... effects of noise on the probability of error in the received data. Equipment List 1. PC with Matlab and Simulink Page 3 Digital Modulation Techniques There are three ways in which the band...

Ngày tải lên: 19/10/2013, 17:15

... mod_perl Data- Sharing Techniques In this chapter, we discuss the ways mod_perl makes it possible to share data between processes or even between different handlers. Sharing the Read-Only Data in ... some data. Now you can access this data as usual. When the code is executed for the second time within the same process, the get_ data( ) method will not be called again, since %CACHE...

Ngày tải lên: 20/10/2013, 09:15

... BASED DATA MINING TECHNIQUES The objective of data mining is to extract valuable information from one’s data, to discover the ‘hidden gold’. In Decision Support Management terminology, data mining ... one search for patterns of information in data (Parsaye, 1997). Figure 2: Rule Induction process Data mining techniques are based on data retention and data distillation. Rule...

Ngày tải lên: 22/10/2013, 09:15

... carrier between known fixed frequencies to convey digital data. Normally, FSK modulation is achieved using just two frequencies to represent binary data. For example, a frequency of 2000 Hz may ... are as follows: f s = 1 khz; f 0 = 5 khz. B. The output of the digital summer as well as that of the Digital Signal Source was observed on the oscilloscope. The graphs are...

Ngày tải lên: 23/10/2013, 15:15

... CSN200 Introduction to Telecommunications, Winter 2000 Lecture 14 Communication Basics Part-2 The Theoretical Basis for Data Communication: Frequency-domain concept: A ... Lecture 14.doc Page 4 (6) CSN200 Introduction to Telecommunications, Winter 2000 Lecture 14 Communication Basics Part-2 Digital Data Signal: Bit rate, is the number of bits transmitted ... Lecture 14 C...

Ngày tải lên: 10/12/2013, 08:15

... BASED DATA MINING TECHNIQUES The objective of data mining is to extract valuable information from one’s data, to discover the ‘hidden gold’. In Decision Support Management terminology, data mining ... one search for patterns of information in data (Parsaye, 1997). Figure 2: Rule Induction process Data mining techniques are based on data retention and data distillation. Rule...

Ngày tải lên: 11/12/2013, 23:15

Ngày tải lên: 12/12/2013, 09:15

Ngày tải lên: 22/12/2013, 02:17

... PHYsical layer that receives data from the medium and passes it on to the data link layer as DL- PDU or data link layer protocol data unit. The data link layer strips off the data link header/trailer ... as unreliable datagram delivery. An example of a protocol using datagram switching is the Internet Protocol (IP). A network layer providing datagram service treats each packet of...

Ngày tải lên: 22/12/2013, 20:17