Search results
Results From The WOW.Com Content Network
Phase-shift keying (PSK) is a digital modulation process which conveys data by changing (modulating) the phase of a constant frequency carrier wave. The modulation is accomplished by varying the sine and cosine inputs at a precise time.
PSK is a protein polysaccharide consisting of a beta-glucan β-1,4 main chain with β-1,3 and β-1,6 side chains. The approximate molecular weight of PSK is 100,000 Da, and the protein component is reported at the β-1,6 side chain. [10] PSK is isolated from the "CM-101" strain of Trametes versicolor.
Download QR code; Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. ... compared to ASK or PSK alone. [1]
An 8-PSK. Information transmitted according to the scheme described in the above diagram is encoded as one of 8 "symbols", each representing 3 bits of data. Each symbol is encoded as a different phase shift of the carrier sine wave: 0°, 45°, 90°, 135°, 180°, 225°, 270°, 315°.
Spectrogram of a PSK63 transmission on the 20-meter band, surrounded by PSK31 transmissions. PSK63 (meaning Phase Shift Keying at a rate of 63 baud) is a digital radio modulation mode used primarily in the amateur radio field to conduct real-time keyboard-to-keyboard informal text chat between amateur radio operators.
A waterfall display depicting several PSK31 transmissions at around 14.07 MHz. The green lines indicate a station that is transmitting. PSK31 or "Phase Shift Keying, 31 Baud", also BPSK31 and QPSK31, is a popular computer-sound card-generated radioteletype mode, used primarily by amateur radio operators to conduct real-time keyboard-to-keyboard chat, most often using frequencies in the high ...
Small-caps and large-caps are wildly popular among investors; however, mid-cap stocks, such as PrairieSky Royalty Ltd (TSE:PSK) with a market-capitalization of CA$5.42b, rarely draw their attention.
Two simultaneous RF tones is in fact the classic "stress test" of an RF power amplifier for measuring linearity and intermodulation distortion. However, two audio tones can be sent simultaneously on a conventional, constant-envelope FM RF carrier, but the noncoherent detection of the FM signal at the receiver would destroy any signal-to-noise ...