in linear or digital systems which use sine waves, the sidebands or additional tones which are generated as the index changes from 0 are predictable and coherent. if the modulator frequency is ...

Frequency modulation (FM) is the method of conveying informations over a carrier wave by varying its frequency .This is different from the Amplitude Modulation (AM) in which the amplitude of the ...

Figure 3-1. An alternating waveform. Amplitude modulation Possibly the most obvious method of modulating a carrier is to change its amplitude in line with the modulating signal. The simplest form of ...

Frequency Modulation (FM) sounds simple at first, but understanding the electronics behind modulation and demodulation of an FM signal can be confusing.

Modern Modulation Techniques Jul 1, 2014 9:00 AM, Jeremy Ruck, PE One simple form of FM is frequency-shift keying, or FSK. In FSK, digital information is transmitted through discrete changes in the ...

(2) Varying the frequency of the waves of a carrier in order to transmit analog or digital data. Frequency modulation (FM) is widely used in audio transmission, not only for its namesake FM radio ...

The mathematical model we analyze uses frequency-shift keying at the transmitter and ideal discrimination detection with an integrate-and-dump circuit as the post-detection filter. Our results are ...

In contrast to DSSS systems, Bluetooth uses a frequency-hopping form of spread-spectrum technology. All Bluetooth users reside within the same 83.5-MHz wide channel in the 2,400-MHz to 2,483.5-MHz ...

The process of varying the FREQUENCY of a signal, often PERIODIC ally. An example of FM is the violinist's VIBRATO, where the length of a string (and therefore the resulting pitch) is rapidly altered ...