Page 1 Punjab EDUSAT Society (PES) Contact info: email: kulwinderpannu@gmail.com Phone: 97813-00151 03 Oct, 2012 1 Page 2 Punjab EDUSAT Society (PES) Contact info: email: kulwinderpannu@gmail.com Phone: 97813-00151 03 Oct, 2012 1 What We Shall Cover • Review of Modulation (with animations) • What is demodulation • Frequency Demodulation Definition • Types of FM Demodulators • Study of Various FM Demodulators (Slope, Balanced, Foster-Seeley, Ratio and Phase Locked Loop) Punjab EDUSAT Society (PES) 03 Oct, 2012 2 Page 3 Punjab EDUSAT Society (PES) Contact info: email: kulwinderpannu@gmail.com Phone: 97813-00151 03 Oct, 2012 1 What We Shall Cover • Review of Modulation (with animations) • What is demodulation • Frequency Demodulation Definition • Types of FM Demodulators • Study of Various FM Demodulators (Slope, Balanced, Foster-Seeley, Ratio and Phase Locked Loop) Punjab EDUSAT Society (PES) 03 Oct, 2012 2 What is Modulation • Modulation is the addition of information (or the signal) to an electronic or optical signal carrier. Modulator Carrier Wave Information Modulated Signal Punjab EDUSAT Society (PES) 03 Oct, 2012 3 Page 4 Punjab EDUSAT Society (PES) Contact info: email: kulwinderpannu@gmail.com Phone: 97813-00151 03 Oct, 2012 1 What We Shall Cover • Review of Modulation (with animations) • What is demodulation • Frequency Demodulation Definition • Types of FM Demodulators • Study of Various FM Demodulators (Slope, Balanced, Foster-Seeley, Ratio and Phase Locked Loop) Punjab EDUSAT Society (PES) 03 Oct, 2012 2 What is Modulation • Modulation is the addition of information (or the signal) to an electronic or optical signal carrier. Modulator Carrier Wave Information Modulated Signal Punjab EDUSAT Society (PES) 03 Oct, 2012 3 Types of Modulation Common modulation methods include: • Amplitude modulation (AM), in which the voltage applied to the carrier is varied over time • Frequency modulation (FM), in which the frequency of the carrier waveform is varied in small but meaningful amounts • Phase modulation (PM), in which the natural flow of the alternating current waveform is delayed temporarily Punjab EDUSAT Society (PES) 03 Oct, 2012 4 Page 5 Punjab EDUSAT Society (PES) Contact info: email: kulwinderpannu@gmail.com Phone: 97813-00151 03 Oct, 2012 1 What We Shall Cover • Review of Modulation (with animations) • What is demodulation • Frequency Demodulation Definition • Types of FM Demodulators • Study of Various FM Demodulators (Slope, Balanced, Foster-Seeley, Ratio and Phase Locked Loop) Punjab EDUSAT Society (PES) 03 Oct, 2012 2 What is Modulation • Modulation is the addition of information (or the signal) to an electronic or optical signal carrier. Modulator Carrier Wave Information Modulated Signal Punjab EDUSAT Society (PES) 03 Oct, 2012 3 Types of Modulation Common modulation methods include: • Amplitude modulation (AM), in which the voltage applied to the carrier is varied over time • Frequency modulation (FM), in which the frequency of the carrier waveform is varied in small but meaningful amounts • Phase modulation (PM), in which the natural flow of the alternating current waveform is delayed temporarily Punjab EDUSAT Society (PES) 03 Oct, 2012 4 Amplitude Modulation Example Modulating Signal Transmitted Signal Punjab EDUSAT Society (PES) 03 Oct, 2012 5Read More
![]() |
Use Code STAYHOME200 and get INR 200 additional OFF
|
Use Coupon Code |