shift keying उदाहरण वाक्य

उदाहरण वाक्य

1. Most early telephone-line modems used audio frequency-shift keying ( AFSK ) to send and receive data at rates up to about 1200 bits per second.
2. An amateur radio HFIP network called HFLINK uses Automatic Link Establishment for initiating data communications, with ARQ 8FSK frequency-shift keying and PSK phase-shift keying signals.
3. Finally, the IEEE 802.15.4a PHY standard actually mixes CSS encoding techniques with differential phase shift keying modulation ( DPSK ) to achieve better data rates.
4. They transmit binary digital data by modulation methods such as frequency shift keying ( FSK ) allowing portable digital devices to communicate via wireless networks.
5. Differential phase shift keying ( DPSK ) is a common form of phase modulation that conveys data by changing the phase of the carrier wave.
6. Whereas earlier standards largely used Phase-shift keying, more efficient systems such as 64QAM are being proposed for use with the 3GPP Long Term Evolution standards.
7. The C / A code is transmitted on the L1 frequency as a 1.023 MHz signal using a bi-phase shift keying ( BPSK ) modulation technique.
8. As a form of phase shift keying is used to transmit data during each burst, it would seem reasonable to expect the transmit power to be constant.
9. However, the software rapidly shifts the phase of the audio signal between two states ( hence the name " phase-shift keying " ), forming the character codes.
10. This can also be extended to frequency modulation ( FM ) and frequency-shift keying ( FSK ), for these can be regarded as a special case of phase modulation.