International Journal of Engineering & Industry ISSN: 2191-3315, Volume 3, Issue 2, page 119 - 125 Zambrut Zambrut.com. Publication date: July 18, 2019. Aung, W. P., Shar, N. T. & Soe, L. N. 2019. Practical Approach to Frequency Modulation and Demodulation ................ 119 Practical Approach to Frequency Modulation and Demodulation Wai Phyo Aung 1 , Nang Tee Shar 2 & Lay Nandar Soe 3 1 Wai Phyo Aung, 2 Nang Tee Shar & 3 Lay Nandar Soe 1 Ph.D (Electronics), Department of Electronic Engineering, TU (Loikaw) 2 Demonstrator, TU (Loikaw) 3 Lecturer, TU (Loikaw) Loikaw, Kayah State, Myanmar 1. INTRODUCTION Many different circuits have been devised to produce FM and PM signals. There are two different types of frequency modulator circuits, direct circuits and circuits that produce FM indirectly by phase modulation techniques. Methods of generating FM signals but they all basically involve an oscillator with an electrically adjustable frequency. But for this experiment, we will generate a real FM signal using the modules like voltage-controlled oscillators (VCOs) on the Emona DATEx trainer kit. And there are several methods of demodulating an FM signal for example: using slope detector, the Foster-Seeley discriminator, the ratio detector, the phase-locked loop and the zero crossing detectors. We can analyze the waveforms and do comparisons with the theory due to the simulation results are performed by waveforms. (Louis E. Frenzel Jr,2016). Abstract: The aim of this paper is to practice the experiments with true mathematical modeling hardware, designed specifically for implementing various communication theories. The Emona DATEx telecommunication trainer kit with NI ELVIS II PROTOYPING Platform draws on a well established experimental methodology that brings to life the “universal language” of telecommunication, the BLOCK DIAGRAMS. Focus examples of Emona DATEx trainer kit: Amplitude Modulation (AM), Double Sideband (DSBSC) modulation, Frequency modulation and demodulation, PCM coding and encoding, etc. Through this dissertation, this paper pointed out the operation of FM modulation and demodulation theoretically. Also, FM transmitter-receiver is indeed an electronic project that places great emphasis on practical work. Keywords: Emona DATEx, telecommunication trainer kit, NI ELVIS II, PROTOTYPING Platform, frequency modulation ,demodulation
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Practical Approach to Frequency Modulation and Demodulation · Sideband (DSBSC) modulation, Frequency modulation and demodulation, PCM coding and encoding, etc. Through this dissertation,
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International Journal of Engineering & Industry ISSN: 2191-3315, Volume 3, Issue 2, page 119 - 125
Zambrut
Zambrut.com. Publication date: July 18, 2019.
Aung, W. P., Shar, N. T. & Soe, L. N. 2019. Practical Approach to Frequency Modulation
and Demodulation ................
119
Practical Approach to
Frequency Modulation and
Demodulation
Wai Phyo Aung1, Nang Tee Shar
2 & Lay Nandar Soe
3
1Wai Phyo Aung,
2Nang Tee Shar &
3Lay Nandar Soe
1Ph.D (Electronics), Department of Electronic Engineering, TU (Loikaw)
2Demonstrator, TU (Loikaw)
3Lecturer, TU (Loikaw)
Loikaw, Kayah State, Myanmar
1. INTRODUCTION
Many different circuits have been devised to produce FM and PM signals. There are two
different types of frequency modulator circuits, direct circuits and circuits that produce FM indirectly
by phase modulation techniques. Methods of generating FM signals but they all basically involve an
oscillator with an electrically adjustable frequency. But for this experiment, we will generate a real FM
signal using the modules like voltage-controlled oscillators (VCOs) on the Emona DATEx trainer kit.
And there are several methods of demodulating an FM signal for example: using slope detector, the
Foster-Seeley discriminator, the ratio detector, the phase-locked loop and the zero crossing detectors.
We can analyze the waveforms and do comparisons with the theory due to the simulation results are
performed by waveforms. (Louis E. Frenzel Jr,2016).
Abstract: The aim of this paper is to practice the experiments with true mathematical
modeling hardware, designed specifically for implementing various communication
theories. The Emona DATEx telecommunication trainer kit with NI ELVIS II
PROTOYPING Platform draws on a well established experimental methodology that
brings to life the “universal language” of telecommunication, the BLOCK DIAGRAMS.