Your roadmap · आपका रोडमैप
- 1
Admission & first meetingप्रवेश और पहली मुलाकातEnquire at your nearest NDSS centre, meet the teacher, fix the batch time and get your study material.
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Part 1 of the syllabusपाठ्यक्रम भाग 1Unit-wise coaching with notes and doubt classes.
Unit 1: Amplitude ModulationUnit 2: Angle ModulationUnit 3: Radio Transmitters and Receivers
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Part 2 of the syllabusपाठ्यक्रम भाग 2Unit-wise coaching with notes and doubt classes.
Unit 4: NoiseUnit 5: Pulse Modulation and Multiplexing
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Unit tests & assignmentsयूनिट टेस्टRegular tests in the university / board pattern.
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Semester 4 exam (university / board)विश्वविद्यालय / बोर्ड परीक्षाPrevious papers and full revision before the exam.
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Online tests & resultऑनलाइन टेस्ट और रिज़ल्टTake the tests online; your marks and result show in your student login and at the centre.
सिलेबस · पाठ्यक्रम
1 subject · 5 chapters · 28 topics
01Unit 1: Amplitude Modulation
6 टॉपिक+
- Need for modulation
- AM: time and frequency domain, modulation index
- Power relations in AM
- DSB-SC, SSB and VSB
- Generation: square-law, balanced and ring modulators
- Detection: envelope and coherent detectors
02Unit 2: Angle Modulation
6 टॉपिक+
- Frequency and phase modulation
- Frequency deviation and modulation index
- Narrowband and wideband FM, Carson's rule
- Direct and Armstrong (indirect) FM generation
- FM detectors: slope, Foster-Seeley, ratio, PLL
- Pre-emphasis and de-emphasis
03Unit 3: Radio Transmitters and Receivers
6 टॉपिक+
- AM and FM transmitters
- TRF receiver
- Superheterodyne receiver
- Intermediate frequency and image frequency
- Sensitivity, selectivity and fidelity
- AGC
04Unit 4: Noise
6 टॉपिक+
- Sources of noise
- Thermal and shot noise
- Signal-to-noise ratio
- Noise figure and noise temperature
- Friis formula for cascaded stages
- Noise in AM and FM systems
05Unit 5: Pulse Modulation and Multiplexing
4 टॉपिक+
- Sampling theorem
- PAM, PWM and PPM: generation and detection
- Time-division multiplexing
- Frequency-division multiplexing
About this course
आप यह कर पाएँगे
- Explain the need for modulation and analyse AM, DSB-SC, SSB and VSB signals
- Calculate power and bandwidth of AM and FM signals
- Explain generation and detection of AM and FM
- Explain superheterodyne receivers and their performance parameters
- Calculate thermal noise, noise figure and noise temperature
- Explain PAM, PWM, PPM and multiplexing
यह किसके लिए है
- B.Tech Electronics & Communication Engineering students of Semester 4 under AKTU
- Students preparing for AKTU examinations and GATE communications
आपको क्या चाहिए
- Signals and Systems (Semester 3)
Online tests & result
Practice and unit tests online; marks and result show in your student login and at the centre.
Student login →
सवाल
Which syllabus is followed?
The current AKTU (Dr. A.P.J. Abdul Kalam Technical University, Lucknow) B.Tech syllabus of Communication Engineering (Electronics & Communication Engineering, Semester 4). If your university or college follows a different syllabus, the centre teaches from your own university syllabus.
How is the subject examined?
AKTU assesses it through sessional tests, assignments and attendance, and an end-semester university examination; the centre covers every unit with theory, derivations and numericals.
Are previous-year questions practised?
Yes. Unit-wise AKTU previous-year questions, short-answer questions and the test series are solved in class.
