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ESG Family Signal Generators
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Overview of Modulation Formats
Custom
Custom
The Real-Time I/Q Baseband Generator enables you to shape the characteristics of a
digitally modulated signal. You can use it to create time-domain multiple access signals.
You can choose from a variety of modulation types, including QPSK, offset QPSK, BPSK,
π/4DQPSK, 4-, 16-, 32-, 64-, and 256-QAM, as well as define your own MSK, FSK, and I/Q
modulation types.
You can create and modify these custom modulation types using simple table editors, and
store custom files to the signal generator’s memory where they can be recalled on demand.
Using the table editors, you can adjust the signal’s data, frequency deviation, I value,
Q value, phase deviation, bit rate, filter alpha, FIR coefficient and value, and a channel
offset. Also, with user-defined IQ and FSK modulations, you can design custom differential
encoding schemes.
Real-Time I/Q Baseband Generator User’s and Programming Guide
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