Hello
I am working with the different digital modulators in grc, and I am
having
trouble understanding some of the parameters. I don’t understand the
effect
that the samples/symbol or bits/symbol has on the sampling rate. I would
greatly appreciate any help or advice. Thank you for your time.
Sam
View this message in context:
http://old.nabble.com/Samples-Symbol-Help-tp33763690p33763690.html
Sent from the GnuRadio mailing list archive at Nabble.com .
Could this help?
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. It is widely used for wireless LANs, RFID and Bluetooth communication.
Any digital modulation scheme uses a finite number of distinct signals to represent digital data. PSK uses a finite number of phases, each assigned a unique pattern of binary digits. Usually, ...
Patrik
----- Original Message -----
From: “sibar002” [email protected]
To: [email protected]
Sent: Friday, May 11, 2012 3:50
Subject: [Discuss-gnuradio] Samples/Symbol Help
maybe better?
In a digitally modulated signal or a line code, symbol rate, modulation rate or baud rate is the number of symbol changes, waveform changes, or signaling events across the transmission medium per unit of time. The symbol rate is measured in baud (Bd) or symbols per second. In the case of a line code, the symbol rate is the pulse rate in pulses per second. Each symbol can represent or convey one or several bits of data. The symbol rate is related to the gross bit rate, expressed in bits per se...
When you change samples_per_symbol, you aren’t changing the sample rate,
but instead the divider of sample rate which gives clock for symbol
rate.