ENAD project

electrical engineering multi-part question and need the explanation and answer to help me learn.

just follow all the request in PDF
need a diagram in Itspice(must)
answer all questions
Requirements: 1000 | .doc file
Prepared by Igor Kardush Nov 2021 and edited by Matheus Xavier in August 2023. ELEN30009 Group Project (20% of Overall Assessment) ASK Modulation Amplitude Shift Keying (ASK) modulation is a digital modulation where the digital data, i.e., ‘1’ and ‘0’, is transferred through an analog communication channel using a high-frequency carrier signal. Some important applications of ASK modulation include its use in digital data communication for a large number of low-frequency RF applications, such as cellular communication, home automation, industrial networks, wireless base stations, remote keyless entry. In an ASK system, each digital bit in an input sequence modulates a carrier wave of a certain frequency as illustrated by the timing diagrams in Figure 1. A ‘1’ bit is transmitted by modulating the carrier wave at a fixed amplitude, whereas a ‘0’ bit is transmitted by modulating the carrier wave at a much lower or zero amplitude. Figure 1. a) binary input sequence, b) carrier wave, and c) ASK modulated output signal. Due to its simple concept, both ASK modulation and demodulation processes are relatively inexpensive. ASK modulation can also be used to transmit digital data over optical fibre, whereby a ‘1’ bit is represented by a short pulse of light and a ‘0’ bit is represented by the absence of light. The simplest and most common form of ASK operates as a switch, allowing the carrier wave to be transmitted when it identifies a 1 input and switching off the transmitter when it identifies a 0 input. In a group of 3 students, you are to design an ASK system comprising an ASK modulator transceiver and demodulator receiver. Figures 2-4 illustrate simple block diagrams of example ASK modulators and demodulators. A few points to take note of: • You can use AD2 as a voltage source and data input. • For binary digital data input, you can use a 10 Hz pulse wave generated from the AD2 Wavegen feature, representing a binary sequence that alternates ‘1’s and ‘0’s with a 50ms bit period. • Your carrier wave generator should output a sinusoid of 2fct. If you choose synchronous demodulation, you can use the same carrier wave generator in the transceiver and the receiver. • You can use a wire jumper as the physical transmission medium between the ASK modulator and demodulator. • You can construct this system using components of the workshop component kit.
Prepared by Igor Kardush Nov 2021 and edited by Matheus Xavier in August 2023. Figure 2. Functional block schematic of ASK modulator. Figure 3. Functional block schematic of synchronous ASK demodulator. Figure 4. Functional block schematic of asynchronous ASK demodulator. Each group is expected to complete this task within 6 weeks (starting from Week 6). In the period of 6 weeks, there will be three workshop sessions dedicated to building and prototyping your ASK system. There are many ways that you can solve this problem, think like an engineer! The assessment for this project contributes to 20% of your overall ENAD mark. The 20% will comprise of: (a) 10% for an individual ASK system demonstration and group oral presentation during Week 12, and (b) 10% for group project report (maximum 15 pages, plus reference and appendix) due end of Week 12. The group report must include: a) A methodology framework used to solve the problem, explaining how the group approached the issue; b) The block and circuit diagrams of your ASK system including component values; c) A theoretical characterisation of your ASK transmitter and receiver, including relevant equation(s) and your choice of the carrier frequency; d) Evidence of experimental setup and if applicable, simulations. Evidence can be photos of circuits on breadboards, screenshots of simulations, etc.; e) Results and measurements, e.g., waveforms of input binary data, carrier wave signal, output ASK signal, output binary digital data, etc.; f) Results discussion and conclusions, e.g., reasons of agreement or disagreement between theory and experiment; and g) References (not counted as part of the 15 pages).

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