PPT-Performance Analysis of Digital Modulation Techniques

Binary modulation schemes ASK FSK PSK n 1 M 2 Only Two output conditions are possible Baud is equal to the bit rate M ary Modulation Techniques QPSK 8PSK 18PSK QAM 16QAM. We have no digital cable boxes that will work on digital cable tv No digital cable box is available Digital cable descrambler and digital cable box will be available someday At this time no digital cable tv box is available Look for digital cable de 2 and 43 of S Haykin and M Moher Introduction to Analog Digital Communications 2nd ed John Wiley Sons Inc 2007 ISBN13 9780471432227 Professor Deepa Kundur University of Toronto Properties of Angle Modulation 2 25 Angle Modulation Phase Modulation Husheng Li. The University of Tennessee. Phase and Frequency Modulation. Consider the standard CW signal. We define the total instantaneous angle. Phase and Frequency Modulation. Phase modulation (PM). Section 6.6. DSB/SC-AM . Modulation (Review). Frequency Shift . Property (Review). Frequency Spectrum of DSB/SC-AM . Signal (Review). Carrier Signal for Amplitude Modulation. Pulse Amplitude Modulation. nalhareqi-2013. 1. Standard Amplitude Modulation (AM). nalhareqi-2013. 2. In the DSP-SC demodulation, a receiver must generate a local carrier in frequency and phase synchronism with the carrier used for modulation.. Husheng Li. The University of Tennessee. Chopper Sampling . We introduce a switching function such that . x_s. (t)=x(t)s(t), where. Nyquist. Criterion. The sampling rate should be at least twice the bandwidth of the signal, in order to fully reconstruct the signal.. Amplitude Modulation (AM). Time domain equation. y. AM. (t. ) = . Information or message x carrier. . = . m(t) . x A cos(w. c. t. ). . Frequency domain equation. Double . sideband . Techniques . ( 24 marks). Visit for more Learning Resources. Transmission Techniques. Baseband . Transmission . The electrical equivalent of original information is known as the . baseband signal. . Tenenbaum, . Wetherall. (uploaded on Canvas). Communication. Exchange of information from point A to point B. 100001101010001011101. 100001101010001011101. Transmit. Receive. Wireless Communication. Modulation is the process of encoding the baseband or source information (voice, video, text) in a manner suitable for transmission.. It generally involves translating a baseband signal (or source) to a band pass signal, centered at a high carrier frequency.. Example: ASK, FSK, PSK, QAM. Binary digital modulation. Multilevel digital modulation. Amplitude Shift Keying. Binary-ASK --- BASK. Or On-Off Keying OOK. Uses two amplitude levels for the modulated carrier . Bryan, G8DKK. Outline. AM and FM Waveforms. FM Transmission. Modulation Frequency. Deviation. Mic Gain . Control. Limiter/Limiting amplifier. Occupied Bandwidth. FM Receivers. Receiver bandwidth (Filters). 1. http://www.gaussianwaves.com/2012/05/performance-comparison-of-digital-modulation-techniques/. Note: M=2^m. Prof. Brian L. Evans. Dept. of Electrical and Computer Engineering. The University of Texas at Austin. 15 - . 2. Introduction. Digital Pulse Amplitude Modulation (PAM). Modulates digital information (symbols) onto amplitude of pulse.