Faulty education system in india essay

All radio systems encode information by modulating a base transmission frequency, usually by shifting it slightly up and down. But because an RFID tag has no independent power source, its modulations are detectably smaller than those of the reader. So the MIT researchers devised an analog filter that would subtract the base transmission frequency from the signals that reach the reader and then separate the low-frequency and high-frequency components. The low-frequency component -- the signal from the tag -- is then added back onto the base frequency.

Faulty education system in india essay

faulty education system in india essay

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