Saturday , October 23 2021
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# Communication

## what are the advantages of FM over AM?

what are the advantages of FM over AM Advantages of FM over AM are 1. It requires less radiated power 2. Low distortion is occurred due to an improved signal-to-noise ratio (about 25dB) with respect to man-made interference. 3. Geographical interference between neighboring stations is smaller. 4. it’s well-defined service areas …

Advantages and disadvantages of digital communication Advantages  1. due to the advances in digital IC technologies and high-speed computers, digital communication systems are simpler and cheaper compare to analog systems. 2. Regenerative repeaters can be used at a fixed distance along with the link, to identify and regenerate a pulse before it is degraded …

## State sampling theorem?

State sampling theorem The sampling theorem states that a bandlimited signal of finite energy, which has no frequency components higher than W Hz, completely described by specifying the values of the signal at instants of time separated by 1/2𝑊 seconds and, A band-limited signal of finite energy which has no …

## what is slope overload distortion and granular noise?

what is slope overload distortion and granular noise Slope overload distortion When the input signal is rising or falling with a slope larger than 𝛿/𝑇𝑠; where 𝛿 is the size of the individual steps and 𝑇𝑠 is the sampling period, we say that the sampler is suffering from Slop Overload …

## Amplitude modulation math Example 1

Amplitude modulation math Example Suppose we have carrier frequency ω = 2π× 10^5rad/sec; Find the frequency component of Amplitude Modulated (AM) signal s(t) of the message signal is given below:(a) m(t) = A0cos(2π× 103t)(b) m(t) = A0cos(2π× 103t) + A0cos(4π× 103t)(c) m(t) = A0cos(2π× 103t) sin(4π× 103t)(d) m(t) = A0cos2(2π× …