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no way... use awgn function in matlab
An AWGN channel adds white Gaussian noise to the signal that passes through it.
One of the Advantage of synchronous detection is that it causes less distortion when compared to envelope detection. Also synchronous works well with Single sideband signals.
as signals come in a means of extracting the original signal is required from the carrier frequency that process is called demodulation or modulation detection you called
What the difference between envelop and coherent detection of AM signals
VESDAVery Early Smoke Detection Apparatus ..... previously known as SDA Smoke Detection Alarm
Microwave signals are detected using an antenna that captures the incoming electromagnetic waves. The waves are then converted into electrical signals that are processed and analyzed by the detection system. The intensity and frequency of the electrical signals are used to interpret the incoming microwave signal.
radar radar
Common types of lights used in motion detection systems include infrared lights, ultrasonic lights, and microwave lights. These lights emit different types of signals that are reflected back when motion is detected, triggering the detection system to activate lighting.
Photoreceptors are the sensory receptors that allow detection of light and vision. They are located in the retina of the eye and are responsible for capturing light and converting it into electrical signals that the brain interprets as images.
Jason Barry Brent has written: 'Coherent detection of QAM signals in land mobile radio'
Searches for features of known attacks