PPT-Pulse Amplitude Modulation

Section 66 DSBSCAM Modulation Review Frequency Shift Property Review Frequency Spectrum of DSBSCAM Signal Review Carrier Signal for Amplitude Modulation Pulse Amplitude Modulation. Common means of modulating data in digital communication Key advantage is that I can send mu ltiple signals using Time Division Multiplexing There are several pulse modulation techniques Pulse Amplitude Modulation Pulse Width Modulation Pulse 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.. . Group B. Ali . Qasim. Haris. . Suhail. Imaan. Tariq. Mohsin. . Zafar. Arsalan. . Hameed. Abdul . Rahman. . Rida. . Zainab. Ehsanullah. . Zafar. Hassan . Iqbal. Amna. Aziz. Manal. Fatima. Qambar. 1. Introduction. A digital signal is superior to an analog signal because it is more robust to noise and can easily be recovered, corrected and amplified. For this reason, the tendency today is to change an analog signal to digital data. In this section we describe two techniques, . 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.. PCM is a method of converting an analog signal into a digital signal. (A/D conversion). The amplitude of Analog signal can take any value over a continuous range i.e. it can take on an infinite values.. 12 - . 2. Communication System Structure. Information sources. Voice, music, images, video, and data (baseband signals). Transmitter. Signal processing block lowpass filters message signal. Carrier circuits block upconverts baseband signal and bandpass filters to enforce transmission band. Tenenbaum, . Wetherall. (uploaded on Canvas). Communication. Exchange of information from point A to point B. 100001101010001011101. 100001101010001011101. Transmit. Receive. Wireless Communication. Code division multiple access Steps in CDMA Modulation. CDMA is a spread spectrum multiple access technique. https://store.theartofservice.com/the-modulation-toolkit.html. Code division multiple access Steps in CDMA Modulation. . ). Data Transmission And Digital Communication. Lecture 5– 2019/1440. By: Elham Sunbu. OUTLINE. Sampling.. Pulse Amplitude Modulation .. Analogue to Digital conversion.. Sampling (PCM).. Pulse Code Modulation Advantages.. 2. Outline. Analog communication systems. Channel impairments. Hybrid communication systems. Analog pulse amplitude modulation. 12 - . 3. Communication System Structure. Information sources. Voice, music, images, video, and data (baseband signals). Lecture 2– 2019/1440. By: Elham Sunbu. OUTLINE. Modulation. Analog Modulation.. AM. FM. PM. Digital Modulation.. Modulation. Operation of varying amplitude, frequency or phase of carrier signal accordingly with the instantaneous amplitude of the message signal.. . Normal Amplitude Modulation. Lecture . 1-3. University of . Mustansiriyah. College of Engineering. Department of Computer Engineering . 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.