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Transmitting any signal requires energy. "Power" is energy per time unit; for example, if 10 mJ are used for the transmission every second, then the power is 10 mW. "Average"... Well, presumably the amount of signal power can change over time, so the average is taken for a certain time period. For example, when transmitting 1's and 0's, it may be that transmitting a "1" requires more energy than transmitting a "0" (depending on how the information is encoded); the average in this case would be taken with the assumption that the same number of 1's and 0's are transmitted in the long run.
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What does dB equals to?
dB (decibel) is a logarithmic measure of the ratio of two power values, for example, two signal strengths. This is often used for power gain or power loss. For example, a loss of 10 dB means that the signal degrades by a factor of 10, a loss of 20 dB means that the signal degrades by a factor of 100, and a loss of 30 dB means that the signal degrades by a factor of 1000.
WHAT ARE parametric and non parametric methods of power spectrum estimation in digital signal processing?
Parametric and Non Parmetric are the of power spectrum estimation of random signal. in nonparmetric method there no assumtion about how the data is generated of which power is to be calculate. sanket lichade
How to make it Using the Matlab?
Problem 1 Generate a sinusoidal signal with amplitude 1, and w = 1. Using a uniform PCM scheme, quantize it once to 8 levels and once to 16 levels. Plot the original signal and quantized signal on the same axis. Compare the resulting SQNRs in the two cases. Choose the signal to be 10 second. Problem 2 The periodic signal x(t) has a period of 2 and interval [0,2] is defined as x(t) = t ---------- 0 ≤ t < 1 = -t + 2 --- 1 ≤ t < 2 · Design an 8 bit-level uniform PCM quntizer for this signal and plot the qunatized output of this system. · Plot the qunatization error for this system · By calculating the power in the wrror signal, determine the SQNR for this system in decibels. Problem 3 Write an M-file to do PWM to PPM! You can also do a simulink scheme. Use proper input signal. And verify your answer with analytical approach. Also introduce an AWGN to the signal and recover it back to the original signal.
What is the frequency of a signal whose wavelength is 1.5 meters?
The answer will depend on what type of signal it is: acoustic, electromagnetic and in what medium the signal is propagated.
What is stronger signal number 1 or signal number 3?
three
Can a power signal be an energy signal?
a signal can never be both energy & power signal because they are mutually exclusive
What opportunities does Clinical research courses offer?
The output signal-to-noise ratio is defined as the ratio of the average output signal power to the average output noise power. From Equation (2.140), we see that the message component in the discriminator output, and therefore the low-pass filter output, is
Unit step signal is energy or power signal?
The unit step signal is a Power signal. Since when we find the power it comes to 1/2 (i.e finite value). And when we find its energy, we got INFINITY. If a signal has energy as infinity and power as a finite non-zero value, then it is a power signal, not an energy signal.
Is exponential signal an energy signal or power signal?
If the signal is not bounded by a step function, then an exponential signal is neither a power nor an energy signal. So the answer is neither.
What is power signal and what is energy signal?
Those signals which have finite energy and zero power known as energy signal..Those signals which have infinite energy and finite power known as power signal..
Does a low bandwidth signal have more power than a high bandwidth signal?
A low bandwidth signal does not have more power.
Is ramp signal energy or power signal?
no...it is neither energy nor power signal . Rampis neither energy nor power signalbecause it has infinite energy as well as infinite power.....saket kumar (electronics & communication engineer),BMSCE MUKTSAR (PUNJAB).
Can you have a radio signal underground?
Yes, you can however the distance that a signal may be travel depends on the power and frequency of the signal. For signals at the same power a lower frequency signal will travel further.
How do you calculate Signal to Noise ratio?
It can be calculated by simplifying the ratio between power of signal by power of noise
What is power good signal of smps?
power good sgnal is +5v signal generated by power supply to ndicate that power is ready to use or ok...power good signal also known as power ok signal.smps gives the power good signal to the motherboard to indicate that it(power) is ready to use.it prevents the computr from attempting to operate in a improper voltages and damaging itself.
Define energy and power signal?
An energy signal has finite energy over a given time period, while a power signal has finite average power over the same time period. Energy signals are typically used in energy storage systems, while power signals are used to describe the rate of energy transfer.
The power-good signal from the power supply prevents the computer from?
The power supply's power-good signal prevents a computer from operating on improper voltages and potentially getting damaged. Typically, a computer will only start up after receiving the power-good signal.
