'Modulated carrier' presentation slideshows

?????? Fundamentals of RF Engineering

1.66k views • 120 slides

G8 - SIGNALS AND EMISSIONS [2 exam questions - 2 groups]

G8 - SIGNALS AND EMISSIONS [2 exam questions - 2 groups]. G8A Carriers and modulation: AM; FM; single and double sideband ; modulation envelope; deviation; over modulation G8B Frequency mixing; multiplication; HF data communications; bandwidths of various modes. Amplitude Modulation.

731 views • 56 slides

Modulated Digital Transmission

Modulated Digital Transmission. Digital modulation is the process of using digital information to alter or modulate the amplitude , phase or frequency of a sinewave.

729 views • 53 slides

Modulation

Modulation. Low-frequency messages cannot be sent over an airwave medium. The low-frequency messages can be converted into high-frequency signals for the purpose of airwave communication.

885 views • 50 slides

Fall 2005 Long Distance Communication Carriers, Modulation, And Modems

Fall 2005 Long Distance Communication Carriers, Modulation, And Modems. Qutaibah Malluhi Computer Science and Engineering Qatar University. Long-Distance Communication. Encoding used by RS-232 cannot work in all situations For example, can not work over long distances

458 views • 35 slides

Chapter 2 : Amplitude Modulation (AM) Transmission and Reception

Chapter 2 : Amplitude Modulation (AM) Transmission and Reception. Signals are transmitted between a transmitter over some form of transmission medium But normally signals are not in the form that is suitable for transmission and need to be transformed

1.52k views • 34 slides

Chapter 2 : Amplitude Modulation (AM) Transmission and Reception

Chapter 2 : Amplitude Modulation (AM) Transmission and Reception. Signals are transmitted between a transmitter over some form of transmission medium But normally signals are not in the form that is suitable for transmission and need to be transformed

341 views • 34 slides

Chapter 2 : Amplitude Modulation (AM) Transmission and Reception

Chapter 2 : Amplitude Modulation (AM) Transmission and Reception. Signals are transmitted between a transmitter over some form of transmission medium But normally signals are not in the form that is suitable for transmission and need to be transformed

357 views • 33 slides

Wireless Systems: Modulation Schemes and Bandwidth

b. Q axis. f c. a. Upper Sideband. Lower Sideband. f. c. 1 0 1 0. I axis. f c. QPSK. 1 0 1 0. b. Q axis. r. a. f c. f. c. I axis. 1 0 1 0. p. v. p /4 shifted DQPSK. f c. RF100 Chapter 2. Wireless Systems: Modulation Schemes and Bandwidth.

750 views • 25 slides

COMMUNICATION SYSTEM EECB353 Chapter 2 Part II AMPLITUDE MODULATION

COMMUNICATION SYSTEM EECB353 Chapter 2 Part II AMPLITUDE MODULATION. Azlina Abdullah Dept of Electrical Engineering Universiti Tenaga Nasional. AM Voltage Distribution. Mathematically an unmodulated carrier can be described as: where v c (t) = time-varying voltage for the carrier

631 views • 17 slides

Simple Modulation

206 views • 13 slides