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onceinalifetim
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What will happen to product detector and envelope detector when modulation depth is increasing?
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onceinalifetim said:What will happen to product detector and envelope detector when modulation depth is increasing?
onceinalifetim said:as in the i just want to know the theory of it
A Product Detector is a type of demodulator that uses a local oscillator to multiply the received signal with a reference signal. This results in the original modulated signal being recovered. On the other hand, an Envelope Detector is a type of demodulator that uses a diode and a capacitor to extract the amplitude variations of the modulated signal, resulting in the recovery of the original message signal.
Envelope Detectors are more commonly used in practical applications because they are simpler to implement and require fewer components compared to Product Detectors. However, Product Detectors are still used in certain applications where high accuracy and stability are required.
Product Detectors have a higher sensitivity and selectivity compared to Envelope Detectors. They also have a wider dynamic range and can handle a larger range of input signal amplitudes. Additionally, Product Detectors are less affected by noise and interference in the received signal.
One of the main disadvantages of using a Product Detector is that it requires a stable local oscillator, which can be difficult to achieve in some applications. Product Detectors also tend to be more expensive and complex compared to Envelope Detectors.
Product Detectors are typically used in applications that require high accuracy and precision, such as in radio communication systems or in scientific instruments. They are also commonly used in systems that require a high signal-to-noise ratio, such as in satellite communication. Envelope Detectors, on the other hand, are suitable for simpler applications that do not require high accuracy, such as in AM radio receivers.