8:34
Communication system lecture-1|Block diagram of communication system and modes of communication
3:57
Frequencies of Wireless communication that you need to know
19:07
Understanding dB and dBm in Urdu/Hindi| dB and dBm in Detail
16:26
What is signal? what is system? Power and energy signal
6:37
Classification of signals| Continuous and discrete time signals| Analog and digital
11:19
Operations on signals| Time transformation of signals|Time shifting|Time scaling|Time inversion
10:01
Impulse signal| Unit impulse signal| Properties of impulse signal
6:05
Unit step signal| Unit step function|Relation between step signal and impulse signal
15:45
Fourier Series Introduction| Dirichelt's conditions|Trigonometric Fourier Series
26:10
Compact Trigonometric Fourier series Expansion with Example
11:37
Example on Compact Trigonometric Fourier Series Expansion
8:31
Exponential Fourier Series Expansion with Example
16:17
Fourier Transform|FT| Dirichlets Conditions
12:57
Fourier Transform of some useful Functions|FT of some useful functions|Unit rectangular- Sinc ftn
10:39
Examples on Fourier Transform| Fourier Transform of Unit impulse signals
9:35
Properties of Fourier Transform| Properties of FT| Duality, Time reversal and Time Scaling property
9:40
Properties of Fourier Transform| Time shifting and frequency shifting property
16:29
Modulation|Types of Modulations| Double side-band Suppressed Carrier|Amplitude Modulation (DSB-SC)
23:22
Example on Double side- Band Suppressed Carrier Amplitude modulation
6:22
Demodulation|Demodulation of Double side band suppressed carrier| Demodulation in AM
9:51
Frequency Mixing or converter| Frequency Mixer| Frequency conversion| Super Heterodyning
13:50
Amplitude Modulation with carrier| Double side band with carrier (AM)| Modulation index|
8:20
AM power and efficiency| Power and Efficiency of amplitude modulation
4:59
Envelope detection of Double side band Amplitude modulated Signal| Envelope detector am demodulation
5:01
AM demodulation using Rectifier| Am demodulation using diode detector
2:30
Introduction to SSB- Single Side Band Amplitude modulation
11:03
Hilbert Transform| Hilbert Transform Explained
13:17
Time Domain Representation of Single Side Band (SSB)
7:23
Generation of SSB Amplitude Modulation| SSB Generation methods
7:14
Quadrature Amplitude Modulation- QAM
8:28
Demodulation of SSB with carrier
5:54
Use of Vestigial side band in TV broadcast
9:06
Vestigial Side Band- VSB
8:36
Overview of Frequency Modulation| Overview of FM| Frequency Modulation
9:38
Angle Modulation-False start Concept of instantaneous frequency and relation between FM and PM
Example 5.1- Sketch FM and PM - PM is sketched using indirect method
5:11
Example 5.2 Direct method of Phase modulation- Direct method of PM
11:55
Bandwidth of Angle Modulated Wave| Narrow band Angle modulation
10:58
Wide Band Frequency modulation| Wide Band FM| Wide band Phase modualtion| Wide band PM
11:48
Example on Wide band Frequency modulation and Phase modulation| Example on Wide band FM & PM
6:24
Effect of Time expansion on PM Bandwidth- Example 5.4
8:16
Generation of FM waves| Indirect method of Armstrong for FM generation
8:35
Generation of FM| Direct method of FM generation| Direct method using VCO
5:42
Demodulation of FM- Frequency Discrimination- Slope detection
4:17
Bandpass limiter| Band pass limiter in FM Demodulation| Bandpass limiter in Slope detection method
11:56
Phase lock Loop| Demodulation of FM signal using Phase Lock Loop
6:43
Interference in angle modulated waves
3:14
Interference due to channel noise| PDE| Pre-emphasis and De-emphasis
Pre-Emphasis and De-emphasis filters| Pre-emphasis and De-emphasis
5:51
Characteristics of Good receiver| Selectivity, Sensitivity and Fidelity
18:12
Superheterodyne AM receiver explained| Image stations| AM receivet
13:58
Stereophonic FM broadcasting| FM transmitter and receiver| FM receiver| stereophonic FM receiver
10:43
Sampling and sampling theorem
7:22
Pulse Code Modulation| PCM| Sampling, Quantization and Encoding
4:29
Quantization and quantization error
6:28
Example on quantization error- Example 6.2
7:38
Advantages of Digital communication| Elements of Digital communication| Block diagram
12:40
Non uniform Quantization and Companding
8:18
Line coding schemes| Line coding- Unipolar, Bipolar, Polar, Alternate Mark Inversion and Manchester
8:04
Numerical on Vestigial Side band| Numerical problem on vestigial side band
5:41
Numerical related to Angle modulation| An angle modulated signal with carrier frequency
5:40
Numerical Problem related to bandwidth of FM and PM
