'Shift keying' presentation slideshows

INTRODUCTION TO DIGITAL MODES

Creede Lambard, WA7KPK Mercury Northwest November 2012. INTRODUCTION TO DIGITAL MODES. What is a digital mode?. What is a digital mode?. Any amateur radio mode that can or must be received, presented, encoded and transmitted by the use of a computer or other dedicated digital device.

1.1k views • 76 slides

Physical layer

Physical layer. Taekyoung Kwon. signal. physical representation of data function of time and location signal parameters of periodic signals: period T, frequency f=1/T, amplitude A, phase shift ? E.g., sinewave is expressed as s(t) = A t sin(2 ? f t t + ? t ).

702 views • 56 slides

Wireless Basics and Models Chapter 2

Wireless Basics and Models Chapter 2. TexPoint fonts used in EMF. Read the TexPoint manual before you delete this box.: A A A A. Overview. Frequencies Signals Antennas Signal propagation Multiplexing Modulation Models, models, models. Physical Layer: Wireless Frequencies. regulated.

626 views • 55 slides

Wireless Basics and Models Chapter 2

Wireless Basics and Models Chapter 2. TexPoint fonts used in EMF. Read the TexPoint manual before you delete this box.: A A A A. Overview. Frequencies Signals Antennas Signal propagation Multiplexing Modulation Models, models, models. Physical Layer: Wireless Frequencies. regulated.

678 views • 55 slides

Simulation in Digital communication

Simulation in Digital communication. chapter # 7 Digital Transmission Via Carrier Modulation. Carrier-Amplitude modulation. In baseband digital PAM:. (2d - the Euclidean distance between two adjacent points). the transmitted signal waveforms:. special case:. rectangular pulse.

792 views • 53 slides

Signal Encoding Techniques

Signal Encoding Techniques. Chapter 6. Digital Vs Analog. Reasons for Choosing Encoding Techniques. Digital data, digital signal Equipment less complex and expensive than digital-to-analog modulation equipment Analog data, digital signal

1.08k views • 52 slides

5-1 DIGITAL-TO-ANALOG CONVERSION

5-1 DIGITAL-TO-ANALOG CONVERSION. Digital-to-analog conversion is the process of changing one of the characteristics of an analog signal based on the information in digital data. Topics discussed in this section:.

902 views • 51 slides

Mobile Communications Chapter 2: Wireless Transmission

Mobile Communications Chapter 2: Wireless Transmission. Frequencies Signals Antenna Signal propagation. Multiplexing Spread spectrum Modulation Cellular systems. Frequencies for communication. VLF = Very Low Frequency UHF = Ultra High Frequency

579 views • 42 slides

Mobile Com puting Chapter 2: Wireless Transmission

Mobile Com puting Chapter 2: Wireless Transmission. Frequencies Signals Antenna Signal propagation. Multiplexing Spread spectrum Modulation Cellular systems. Frequencies for communication. VLF = Very Low Frequency UHF = Ultra High Frequency

589 views • 41 slides

Spread Spectrum

Spread Spectrum. Chapter 7. Spread Spectrum. Input is fed into a channel encoder Produces analog signal with narrow bandwidth Signal is further modulated using sequence of digits Spreading code or spreading sequence Generated by pseudonoise, or pseudo-random number generator

842 views • 40 slides

CSCI-1680 Wireless

512 views • 40 slides

Mobile Communications Chapter 2: Wireless Transmission

Mobile Communications Chapter 2: Wireless Transmission. Frequencies Signals Antenna Signal propagation. Multiplexing Spread spectrum Modulation Cellular systems. 2.0.1. Frequencies for communication. twisted pair. VLF = Very Low Frequency UHF = Ultra High Frequency

1.35k views • 38 slides

ECE 4371, Fall, 2013 Introduction to Telecommunication Engineering/Telecommunication Laboratory

ECE 4371, Fall, 2013 Introduction to Telecommunication Engineering/Telecommunication Laboratory. Zhu Han Department of Electrical and Computer Engineering Class 13 Oct. 9 th , 2013. Outline. Partial Response Carrier systems ASK, OOK, MASK FSK, MFSK BPSK, DBPSK, MPSK MQAM, MQPR OQPSK,

543 views • 36 slides

A Time of Transition for EMWIN

651 views • 33 slides

Mobile Communications

Mobile Communications. Instructor M. Naman Chaudhary MS(Multimedia and Communication) Muhammad Ali Jinnah University Islamabad Campus. Lecture # 6+7. Wireless Transmission. CH = 2 Mobile Communications JOCHEN SCHILLER 2 nd Edition. Modulation. Digital modulation

526 views • 33 slides

Mobile Communications Chapter 2: Wireless Transmission

Mobile Communications Chapter 2: Wireless Transmission. Frequencies Signals Antenna Signal propagation. Multiplexing Spread spectrum Modulation Cellular systems. Frequencies for communication. VLF = Very Low Frequency UHF = Ultra High Frequency

472 views • 30 slides

Digital to Analog

683 views • 27 slides

Multi-rate Medium Access Control

Multi-rate Medium Access Control. David Holmer dholmer@jhu.edu. What is Multi-Rate?. Ability of a wireless card to automatically operate at several different bit-rates (e.g. 1, 2, 5.5, and 11 Mbps for 802.11b) Part of many existing wireless standards

293 views • 18 slides

Modulation and Data Transfer

Modulation and Data Transfer. February 21, 2002. References. http://www.technovelgy.com/ct/Technology-Article.asp?ArtNum=2 http://electronics.howstuffworks.com/smart-label1.htm http://www.answers.com/topic/iso-15693

277 views • 16 slides

Fundamental Digital Electronics (Fall 2013)

Fundamental Digital Electronics (Fall 2013). Martino Poggio. A-to-D Conversion. AM/FM Modulation. AM/FM Modulation. Phase Modulation. Frequency-Shift Keying (FSK). Phase-Shift Keying (PSK) Binary PSK (BPSK). Phase-Shift Keying (PSK) Quadrature PSK (QPSK).

242 views • 9 slides