fsk modulation and demodulation lab manual

. This application report discusses logic-level implementation of FSK modulator and demodulator using a PLL device HC/HCT4046A. fskMod = comm.FSKModulator(M,freqSep); fskDemod = comm.FSKDemodulator(M,freqSep); Create an additive white Gaussian noise channel, where the noise is specified as a signal-to-noise ratio. 2. PCS Lab Manual Page 2 SYLLABUS PCS Lab (EE-226-F) ... : 25 Marks Total : 50 Marks Duration of Exam : 3 hrs. /Type /Page To study Pulse Amplitude Modulation a. using switching method b. by sample and hold circuit 7. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 /Font << . 333 444 500 444 500 444 333 500 500 278 278 500 278 778 500 500 . <> The HC/HCT4046A, PLL with VCO is a high-speed CMOS IC designed for use in general-purpose PLL applications, including frequency modulation, demodulation, discrimination, synthesis, and multiplication. �H�0�$2�iQq�Ls菩ZS�S��$�)��Զ�ԋ�կ�#��>-��⹺_��W|Y��[��;�L|��G|m79/Ӳ�:�(��$��w��o�(��R.��X=B'fq�l�;|�� CQ��h$��e��2�d�y}s{��Z*TP,6K��w|�^��'��y��?��R/�?��?/s�4��MJ׍�T�V��5��ug�+��e�L֦��16��gd��a��W��g~ݢ��`4L��o�g݂��b@.� This article pro vides a general tutorial on FSK in its many forms. BFSK modulation and Demodulation 7. Line Coding Schemes 10.FSK, PSK and DPSK schemes (Simulation) 2. <> 5. a) Delta modulation b) Adaptive delta Modulation 6. DPCM Modulator trainer 2. Exp. SI^�� R]_}C�5�A��qm#6�]�ע%k��-)D�#=h��#� z>� THEORY: The PWM is also known as pulse duration modulation. 3- To implement the BFSK detector by using PLL. The MARK signal We are also to carry out an ASK connection, with and without Manchester data coding. Baseband and Passband Simulation For a given modulation technique, two ways to simulate modulation techniques are called baseband and passband . Ravi Kumar Asst. endobj 2 0 obj In the first model, you are provided a FM structure that is very similar to the theoretical background of this experiment. . . Demodulates an FSK-modulated complex baseband waveform and returns the time-aligned demodulated waveform, the demodulated information bit stream, and measurement results obtained during demodulation. 722 722 722 722 722 722 889 667 611 611 611 611 333 333 333 333 . 250 333 500 500 500 500 220 500 333 747 300 500 570 333 747 500 The technology is used in communication systems such as amateur radio, caller ID, and urgent situation broadcasts. To understand the theoretical foundations of Analog Communications as well as of Double-Side-Band Amplitude Modulation and Demodulation (DSB-AM) To design the Simulink model of the DSB-AM to analyze each signal in time and frequency domains using time scope and spectrum analyzer Theory: 1. Amplitude modulation and demodulation 3. 2. $4�%�&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz�� ? 60 - D1 FSK - frequency shift keying FSK - FREQUENCY SHIFT KEYING ACHIEVEMENTS: generation and demodulation of a binary FSK signal. 500 500 500 500 500 500 500 549 500 500 500 500 500 444 500 444 Noisy signal generation and analysis. They will also observe the modulation and demodulation process of PCM using a pre-built hardware board. Advanced Communication Laboratory Manual - 06ECL67 Department of Telecommunication Engg. 500 500 500 500 500 500 500 500 500 500 333 333 570 570 570 500 Lab Exercises 1. EC 6512 – Communication Systems Laboratory 7 Department of Electronics and Communication Engineering Varuvan Vadivelan Institute of Technology, Dharmapuri – 636 703. . 3- To implement the BFSK detector by using PLL. >> Experiment 13: FSK - Frequency Shift Keying. 1. ] 778 333 333 500 500 350 500 1000 333 1000 389 333 722 778 444 722 0 0 0 0 0 0 0 0 0 0 0 0 0 0 778 778 /Contents 17 0 R /ModDate (D:20160629001416-07'00') 400 549 300 300 333 576 540 333 333 300 330 500 750 750 750 500 PSK MODULATION & DEMODULATION Aim: To study the Modulation and Demodulation Techniques of PSK Equipment Required: 1. APPRATUS: 1. /Height 135 APPARATUS: -Dual trace CRO, PWM kit, Connecting leads. endstream Storage Oscilloscope 4. Lab Manual: Communication Systems Lab (EE-226-F) B R C M CET BAHAL DEPARTMENT OF ELECTRONICS & COMMUNICATION ENGINEERING Page 11 EXPERIMENT NO. 333 500 500 444 500 444 278 500 500 278 278 444 278 722 500 500 <>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 595.32 841.92] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> – CMRIT 5 02 FREQUENCY SHIFT KEYING (MODULATION AND DEMODULATION) AIM: To design and study the working of FSK modulation and demodulation with the help of a suitable circuit. 500 778 333 500 500 1000 500 500 333 1000 556 333 1000 778 667 778 No. Lab Manual: Communication Systems Lab (EE-226-F) B R C M CET BAHAL DEPARTMENT OF ELECTRONICS & COMMUNICATION ENGINEERING Page 11 EXPERIMENT NO. 778 333 333 444 444 350 500 1000 333 980 389 333 722 778 444 722 Study of DPSK generation and detection 7. This post discusses Digital Modulation Techniques (ASK, FSK and PSK). << >> 2. . >> APPARATUS: -Dual trace CRO, PWM kit, Connecting leads. << stream 66 - D1 FSK - frequency shift keying TT222...111 signals for demodulation signals for demodulation The demodulators to be examined will require FSK signals as inputs. %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz�� The HC/HCT4046A, PLL with VCO is a high-speed CMOS IC designed for use in general-purpose PLL applications, including frequency modulation, demodulation, discrimination, synthesis, and multiplication. 250 333 420 500 500 833 778 214 333 333 500 675 250 333 250 278 x�ŐAO�0��8y�]׵�1q@b=�dcÌ-�,�oo�29϶��o��q�=�*�JP1�� \�/S[� 500 500 389 389 278 500 444 667 444 444 389 400 275 400 541 778 722 722 722 722 722 722 722 564 722 722 722 722 722 722 556 500 722 667 722 722 722 722 722 675 722 722 722 722 722 556 611 500 ACHIEVEMENTS: Generation and demodulation of a binary FSK signal. 930 722 667 722 722 667 611 778 778 389 500 778 667 944 722 778 /Producer (BCL easyPDF 7.00 $0353$) 5 PAM Generation and Demodulation 27 6 DSB-SC using multiplier IC AD633 33 7 AM generation and Demodulation using AD 633 39 8 FM using 555 47 9 FM - Modulation and Demodulation using PLL 51 10 Mixer Circuit using BJT 57 A Quick Reference: Component Details 61 A.1 Intermediate Frequency Transformer . Frequency modulation and demodulation 4. ST2156 and ST2157. CRO Probes 5. EXTRA MODULES: a second VCO, BIT CLOCK REGEN.Optionally, a Amplitude modulation and demodulation 3. CRO Probes 5. /Resources << If not, then you will need to generate your own. The Emona DATEx Add-on Board combines with the NI ELVIS platform, providing a foundation to assist the student in visualizing and better understanding the concepts. 2 0 obj ST2156 and ST2157. Both modulation and demodulation schemes will be dis cussed Binary FSK Note: A separate worksheet has been provided to you in soft-copy form. Frequency-shift keying (FSK) is the frequency modulation system in which digital information is transmitted through the discrete frequency change of a carrier wave. Study of FSK generation and detection 6. 2- To implement the BFSK modulator by VCO. And it is defined as, whatever the modulated signal received from the channel at the receiver side by implementing the proper demodulated techniques to recover/reproduce the original input signal at the output stage of the receiver. 611 778 722 556 667 722 722 1000 722 722 667 333 278 333 581 500 Communication II Lab (EELE 4170) Lab#6 FSK Modulation &Demodulation Objectives: 1- To understand the operation theory of Frequency Shift Keying (FSK) modulation & demodulation. Figure 5: an FSK generation and demodulation 5. 20 MHz CRO 4. 1. 500 500 333 389 278 500 500 722 500 500 444 480 200 480 541 778 333 500 556 444 556 444 333 500 556 278 333 556 278 833 556 500 0 0 0 0 0 0 0 0 0 0 0 0 0 0 778 778 Do’s & Don’ts in Laboratory. The FSK generation and demodulation parts of the set-up can be represented by the block diagram in Figure 5 below. To study PLL 565 as frequency demodulator 5. 6 0 obj : 3 Date: AMPLITUDE MODULATION AND DEMODULATON AIM: To perform the amplitude modulation and demodulation using AM Kit. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2. 2 Building Simulink Model of Frequency Modulation and Demodulation The frequency modulator and demodulator structures are as explained below. Experiment No 8 AIM: Study of Phase Shift Keying. This article pro vides a general tutorial on FSK in its many forms. 3. %�� 500 556 500 500 500 500 500 549 500 556 556 556 556 500 556 500 Prof MIST MIST, Hyderabad – ECE Department Page 7 EXPERIMENT – 1 4.1 Amplitude modulation and demodulation 4.1.1 Aim: To study the function of Amplitude Modulation & Demodulation (under Both modulation and demodulation schemes will be discussed BINARY FSK The four basic experiments cover introduction to the laboratory equipment, simulation of communication systems using MATLAB, time- and frequency-domain representation of signals, and processing of speech signals. The Low-pass filter module is used to pick out one of the FSK signal's two sinewaves and the RECTIFIER and BASEBAND LPF combination form the envelope detector to complete the FSK signal's demodulation. 11 0 obj 3 0 obj THEORY: The PWM is also known as pulse duration modulation. FSK: Signals and Demodulation Frequency shift keying (FSK) is the most common form of digital modulation in the high-frequency radio spectrum, and has important applications in telephone circuits. However, the M-FSK features of this product differ from the CPFSK features in their mask interfaces and in the demodulator implementations. [ 400 549 300 300 333 576 453 333 333 300 310 500 750 750 750 444 Sanzhar Askaruly. 61 >> analog modulation, and four on digital modulation. 722 722 722 722 722 722 1000 722 667 667 667 667 389 389 389 389 500 500 500 500 500 500 500 549 500 500 500 500 500 500 500 500 Patch cords Theory: In the PSK modulation or phase shift keying, for all the ‘one’ to ‘zero’ transitions of the modulating data, the modulated output switches between the in phase and out of phase components of Power Supply 3. endobj Line Coding Schemes 10.FSK, PSK and DPSK schemes (Simulation) To study frequency modulation and determine its modulation factor 4. To study and perform Frequency Modulation and Demodulation. << 611 722 611 500 556 722 611 833 611 556 556 389 278 389 422 500 To study and perform Amplitude Modulation and Demodulation. 2 mm Banana cable 3. 4.Power supply. /BitsPerComponent 8 19 0 obj 2 mm Banana cable 3. The FSK generation and demodulation parts of the set-up can be represented by the block diagram in Figure 5 below. %PDF-1.3 Create FSK modulator and demodulator System objects™ with modulation order 8 and 100 Hz frequency separation. Study of PSK generation and detection 5. 250 333 500 500 500 500 200 500 333 760 276 500 564 333 760 500 - 4 AIM: - To study Pulse Width Modulation and Demodulation. . Experiment No 8 AIM: Study of Phase Shift Keying. 722 722 778 778 778 778 778 570 778 722 722 722 722 722 611 556 Note: The m-file uses the function cumsum of MatLab for FM modulation. Analog Communication Lab Manual , Prepared by Nakka. Digital Multimeter. CRO. ;�[�dv�5�ƞ!5�h�Xؚj�z��K6�$R��T$(%�H!��RO�`�Iӗ�r6�#��wQ��j�2 �RH��8�(& �2E\�,uy��9�3��3`"F!��ҡu�p4Y��A0�0��w|��m��)��=� ^��G�Ν��t��pҞ��j=��.��d>�k��7��ӧ��7B�� 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 �yi[��š�s{��5U��G�GcT��9Ԍ�̕D. The FM output for a square wave looks like Frequency Shift Keying (FSK). /Subtype /Image For a suitable FSK test signal you could use the model of Figure 7. PREREQUISITES: it would be advantageous to have completed some of the Part I experiments involving linear modulation and demodulation. Microwave and Digital communication Lab 9 Expt No: 2 DIFFERENTIAL PULSE CODE MODULATION AND DEMODULATION AIM: To Study & understand the operation of the DPCM APPARATUS: 1. 778 333 333 556 556 350 500 889 333 980 389 333 667 778 389 556 Students are expected to write a Matlab code that will help them to understand the fundamentals of PCM. Communication II Lab (EELE 4170) Lab#6 FSK Modulation &Demodulation Objectives: 1- To understand the operation theory of Frequency Shift Keying (FSK) modulation & demodulation. ] 921 722 667 667 722 611 556 722 722 333 389 722 611 889 722 722 . Anderson and J. Salz. /Filter /DCTDecode 1 0 obj /Length 9724 Patch cords Theory: In the PSK modulation or phase shift keying, for all the ‘one’ to ‘zero’ transitions of the modulating data, the modulated output switches between the in phase and out of phase components of ��Z|H�5��Aoo�sQE�L��XP �W?� � �� v�/� '� �K�o_��nm��]��7y�%|�}*9n| 1ǥ�G��^9w�Y��H��r]��IYhP� �� ;x�� T��|I� �Y� ��׼��h�q#�qH��Gf�ru�ncКv��˛��߇>��E�C��yF�j5�v1��?��%� �� U��&�%� �� UY �ǻ�Q4��d��U�Quo�6��q��:�o[4��K�+Y�r}��n��. /Filter /FlateDecode endobj endobj endobj Lab 2: Pulse Code Modulation (PCM) Objective The objective of this lab is to get familiarized with Pulse Code Modulation. Pulse code modulation and demodulation. /Length 354 500 500 500 500 500 500 667 444 444 444 444 444 278 278 278 278 250 389 500 500 500 500 275 500 333 760 276 500 675 333 760 500 This article provides a general tutorial on FSK in its many forms. <>>> x��\mo�� a�\Hm��;��8��4��)��V�+��9��!wWK � ��zH��g��_?>m��OO��o��ǟ��?�n6w��iu��Mu��^q^3U}��hL�m�y�|r��n�ϟ_��\��?��y��c]+�D͚a��E��*VkSIW+1�H�� W��2V�FTW��fm��|)mmMh!U-@3)�FW�ٺQ�F�mT�|SU�?��>�y��b��RV��:�N��t" - 4 AIM: - To study Pulse Width Modulation and Demodulation. This complete 3-volume lab manual offers hands-on labs for teaching basic analog and digital communication topics such as AM, FM, SNR Concepts, sampling, TDM, and delta-sigma modulation. In the chapter, the spectral density of BFSK is evaluated for arbitrary modulation indices based on the work of R.R. CRO. Prof. & Roopalakshmi Asst. You are free to type your answers within the provided Word document or print the worksheet out for writing. << The digital modulation techniques are amplitude shift keying (ASK), frequency shift keying (FSK) and Phase shift keying (PSK). 556 722 667 556 611 722 722 944 722 722 611 333 278 333 469 500 . The Low-pass filter module is used to pick out one of the FSK signal's two sinewaves and the RECTIFIER and BASEBAND LPF combination form the envelope detector to complete the FSK signal's demodulation. To study sampling and reconstruction of Pulse Amplitude modulation system 6. This application report discusses logic-level implementation of FSK modulator and demodulator using a PLL device HC/HCT4046A. 4 Experiment No.3, Demodulation of AM signals 9 5 Experiment No.4, Frequency modulation 11 6 Experiment No.5, Introduction to phase locked loop 20 7 Experiment No.6, FM Demodulators 31 8 Experiment No.7, Digital Modulation: FSK 34 9 Experiment No.8, Pre -emphasis & De emphasis 36 10 Experiment No.9, Pulse code modulation 39 "$"$�� C�� " �� %PDF-1.5 17 0 obj 400 549 300 300 333 576 523 250 333 300 310 500 750 750 750 500 (Waveforms of FSK Modulation & Demodulation) RESULT: The amplitude change in FSK waveform does not matter, therefore FSK modulation technique is very reliable even in noisy & fading channels. To study and perform Pulse Amplitude Modulation and Demodulation. FSK: Signals and Demodulation Frequency shift keying (FSK) is the most common form of digital modula tion in the high -frequency radio spec trum, and has important applications in telephone circuits. Frequency Shift Keying (FSK) is the digital modulation technique in which the frequency of the carrier signal varies according to the digital signal changes. DCS Kit 2. ] 4.Power supply. PSK MODULATION & DEMODULATION Aim: To study the Modulation and Demodulation Techniques of PSK Equipment Required: 1. 500 778 333 500 444 1000 500 500 333 1000 556 333 889 778 611 778 /F15 7 0 R The analog modulation part covers the generation and detection of Double-Side Demodulation is the process of reconstructing the original signal at the receiver level. 4 0 obj /ProcSet [/PDF /Text /ImageB /ImageC] >> PREREQUISITES: It would be advantageous to have completed some of the Part 1 experiments involving linear modulation and demodulation. Frequency Shift Keying Modulation. Frequency modulation and demodulation 4. ]��#��j��!4kg�A��+~Y_=m~[��'#��lܰ(JS'Z��Dk�Qmo��ǰv�!�(��t�%�~��կ�|T��ǝ_�+X��C��B*��{��7X��n��]��k�?�#N�Ό�i[;�{��c+v݅1q��M��XH��Q:�~��]�+��G��K��;o|D��B��ϭ1�Xmc�?�/�&S3Kӫq��[ܷ��!��:X�^K��~��|;�v�\gFָ�\Q��=^(�"�j�Oi�)`Z]��CKo�=��x�mpc��6�w��2� Á��Dӳ��14�ܸQ��@��Y9�Đ5 �k��'�|0��K�S��7ͅ��mZ�dٕ��C�4�r�!v�JӍ��T�� ;>�qC��'��[T0��O��:ר&�č|�`�Gł߁�^��w�]�{"�Ӈ9�rs�H�\,@�Sl�cQ�&�;�Tz�:+3�3R:�D.�d��s�o��j@`�Q��,'��]vLJ��a�r?.n�wসX",r]d�*;�q��x�e� In this lab, you will learn about practical frequency demodulation by using a software-implemented FM receiver that can receive and demodulate FM radio broadcast signals. 611 611 611 611 611 611 889 667 611 611 611 611 333 333 333 333 And finally the noise effect on the connection is to be examined. [ Study of ASK generation and detection 4. Cumsum models the integration operation for a digital signal, which means that the MT Demodulate FSK VI. /F16 10 0 R 444 444 444 444 444 444 667 444 444 444 444 444 278 278 278 278 Both modulation and demodulation schemes will be dis cussed Binary FSK stream . The ETT-101 Laboratory Manuals (Volumes 1 and 2) provide a turn-key solution for the teacher and student alike.The manuals are specially written to guide students through hands-on experiments and help them grasp the fundamental concepts of telecommunications.Each chapter includes background information which relates the experiment content to real-world applications. �6� The Frequency Shift Keying (FSK) modulation and demodulation takes place with the input given by the user and this code doesn't need any additional toolbox. BPSK modulation and Demodulation 8. (Waveforms of FSK Modulation & Demodulation) RESULT: The amplitude change in FSK waveform does not matter, therefore FSK modulation technique is very reliable even in noisy & fading channels. DPCM Demodulator trainer 3. endobj 29. 2- To implement the BFSK modulator by VCO. You will find here the basic difference between digital modulation and analog modulation. 4 Experiment No.3, Demodulation of AM signals 9 5 Experiment No.4, Frequency modulation 11 6 Experiment No.5, Introduction to phase locked loop 20 7 Experiment No.6, FM Demodulators 31 8 Experiment No.7, Digital Modulation: FSK 34 9 Experiment No.8, Pre -emphasis & De emphasis 36 10 Experiment No.9, Pulse code modulation 39 /MediaBox [ 0 0 612 792 ] 2. endobj . [ �� JFIF �� C ! stream Lab 1: Amplitude Modulator and Demodulator Objective. /Creator (easyPDF SDK 7 7.0) 920 611 611 667 722 611 611 722 722 333 444 667 556 833 667 722 To study amplitude demodulation by linear diode detector 3. . The chapter concludes with the characterization of the spectrum of BFSK for various modulation indices. /F18 16 0 R 2. The m-file pre6_1.m is designed to show the frequency variation more clearly in the time domain. endobj 0 0 0 0 0 0 0 0 0 0 0 0 0 0 778 778 Frequency-shift keying (FSK) is the frequency modulation system in which digital information is transmitted through the discrete frequency change of a carrier wave. %�� 500 500 500 500 500 500 500 500 500 500 278 278 564 564 564 444 556 556 444 389 333 556 500 722 500 500 444 394 220 394 520 778 250 333 555 500 500 1000 833 278 333 333 500 570 250 333 250 278 EXTRA MODULES: BIT CLOCK REGEN.Optionally, a UTILITIES and a TUNABLE LPF.