'Dsb sc' diaporamas de présentation

Dsb sc - PowerPoint PPT Presentation

Chapter 3 Analog Signal Transmission and Reception

Chapter 3 Analog Signal Transmission and Reception

Chapter 3 Analog Signal Transmission and Reception. CONTENTS. Introduction to Modulations Amplitude Modulation Angle Modulation Radio and Television Broadcasting Mobile Radio Systems. 3.1 INTRODUCTION TO MODULATION. Denote m(t) as the analog signal to be transmitted.

★ ★ ★ ★ ★

1.57k views • 96 slides
????? 3 ????????????

????? 3 ????????????

????? 3 ????????????. ????????? (Radio System) 252442 ??????????????????????? ????????? ???????????????????? ????????????????? ????????????????????. Modulation. Why Modulate? ??????????????????? ???????????????????????????????? ????????????????? How Modulate ?

★ ★ ★ ★ ★

1.17k views • 57 slides
Chapter 3. Amplitude Modulation

Chapter 3. Amplitude Modulation

Chapter 3. Amplitude Modulation. Essentials of Communication Systems Engineering John G. Proakis and Masoud Salehi. Amplitude Modulation. A large number of information sources produce analog signals Analog signals can be modulated and transmitted directly, or

★ ★ ★ ★ ★

1.07k views • 57 slides
Amplitude Modulation

Amplitude Modulation

Amplitude Modulation. Objectives: To introduce amplitude modulation To study double sideband suppressed carrier modulation (DSB-SC) systems To describe coherent demodulation method for amplitude modulation To assess the influence of carrier phase for coherent demodulation

★ ★ ★ ★ ★

646 views • 57 slides
Chapter 3. Amplitude Modulation

Chapter 3. Amplitude Modulation

Chapter 3. Amplitude Modulation. Essentials of Communication Systems Engineering John G. Proakis and Masoud Salehi. Amplitude Modulation. A large number of information sources produce analog signals Analog signals can be modulated and transmitted directly, or

★ ★ ★ ★ ★

933 views • 57 slides
Chapter VIII. Sideband Systems VESTIGIAL SIDEBAND

Chapter VIII. Sideband Systems VESTIGIAL SIDEBAND

Chapter VIII. Sideband Systems VESTIGIAL SIDEBAND.

★ ★ ★ ★ ★

1.23k views • 51 slides
Variations of AM

Variations of AM

Variations of AM. Bandwidth Efficiency Single Side Band Vestigial Side Band Power Efficiency Reduced Carrier Suppressed Carrier Complication Circuits: generation, tuning, detection Filter, tone variation, carrier recovery. Double Side Band Suppressed Carrier (DSBSC).

★ ★ ★ ★ ★

859 views • 49 slides
Phasor Analysis of Bandpass Signals

Phasor Analysis of Bandpass Signals

Phasor Analysis of Bandpass Signals. Background: Phasors for Monochromatic Signals. Phasor Analysis of Bandpass Signals. Narrowband Signals: Define:. Narrowband Signals: Continued. Phasor Equivalent for Narrowband. Transmitting Bandpass Signals through Bandpass Systems.

★ ★ ★ ★ ★

386 views • 26 slides
Noise on Analog Systems

Noise on Analog Systems

Noise on Analog Systems. ECE460 Spring, 2012. AM Receiver. s ( t ) is the transmitted signal

★ ★ ★ ★ ★

352 views • 21 slides
Electrical Communications Systems ECE.09.331 Spring 2011

Electrical Communications Systems ECE.09.331 Spring 2011

Electrical Communications Systems ECE.09.331 Spring 2011. Lecture 4b February 9, 2011. Shreekanth Mandayam ECE Department Rowan University http://engineering.rowan.edu/~shreek/spring11/ecomms/. Plan. Amplitude Modulation (AM) DSB-SC Modulation Complex Envelope Representation.

★ ★ ★ ★ ★

176 views • 17 slides
Electrical Communications Systems ECE.09.331 Spring 2010

Electrical Communications Systems ECE.09.331 Spring 2010

Electrical Communications Systems ECE.09.331 Spring 2010. Lecture 5b February 17, 2010. Shreekanth Mandayam ECE Department Rowan University http://engineering.rowan.edu/~shreek/spring10/ecomms/. Plan. Amplitude Modulation (Standard-AM) Double Sideband - Suppressed Carrier (DSB-SC).

★ ★ ★ ★ ★

272 views • 16 slides
Analog Communications

Analog Communications

Analog Communications. Amplitude Modulation. Double Side Band Suppressed Carrier. Contents. Theory Implementation Transmitter Detector Synchronous Square Power analysis Summary. Carrier. USB. LSB. ? c - ? m ? c ? c + ? m. Single frequency.

★ ★ ★ ★ ★

456 views • 14 slides
Sinusoidal Amplitude Modulation

Sinusoidal Amplitude Modulation

Sinusoidal Amplitude Modulation. Section 6.5. Purpose of Modulation. Human voice: dominated by frequency components of less than 1 KHz. Antenna length requirement: C=30 cm x 1 GHz= ? f ? =C/f Interference from other signals at same frequency. DSB/SC-AM Modulation.

★ ★ ★ ★ ★

369 views • 12 slides
Chapter 3. Amplitude Modulation

Chapter 3. Amplitude Modulation

Chapter 3. Amplitude Modulation. Essentials of Communication Systems Engineering. Amplitude Modulation. Speech, music, images, and video are examples of analog signals Speech and audio signals : The signal has just one component, which measures air pressure Speech: Bandwidth of up to 4 kHz

★ ★ ★ ★ ★

510 views • 11 slides
DSB-SC & SSB

DSB-SC & SSB

DSB-SC & SSB. DSB-SC Modulation. A DSB-SC signal is an AM signal of the form: S(t)=Ac m(t) cosw c t Normal AM signal : S(t)=Ac[1+um(t)] cosw c t =Ac cosw c t +Ac u m(t) cosw c t. Frequency spectrum of DSB-SC signal.

★ ★ ★ ★ ★

814 views • 11 slides

View Dsb sc PowerPoint (PPT) presentations online in SlideServe. SlideServe has a very huge collection of Dsb sc PowerPoint presentations. You can view or download Dsb sc presentations for your school assignment or business presentation. Browse for the presentations on every topic that you want.