Real-time jitter impairment insertion for signal sources
AssigneeTektronix, Inc.
InventorsGregory A. Martin, Patrick Satarzadeh, Karen Hovakimyan, Hungming Chang
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Abstract
A test and measurement device having a signal source, including an impairment generator configured to output an impairment and a waveform synthesizer. The waveform synthesizer receives an input digital signal to be synthesized, receives the impairment, and synthesizes a synthesized digital signal based on the input digital signal and the impairment. The test and measurement instrument also includes a fixed sample rate digital-to-analog converter configured to receive a clock signal and the synthesized digital signal and output an analog signal.
Claims20
A test and measurement device having a signal source, comprising:
- an impairment generator configured to output an impairment;
- a waveform synthesizer configured to:
- receive an input digital signal to be synthesized,
- receive the impairment, and
- synthesize a synthesized digital signal based on the input digital signal and the impairment;
- and
- a fixed sample rate digital-to-analog converter configured to receive a clock signal and the synthesized digital signal and output an analog signal.
A method for synthesizing a waveform, comprising:
- receiving an input digital signal to be synthesized;
- generating an impairment;
- synthesizing a synthesized digital signal based on the input digital signal and the impairment;
- and
- converting the synthesized digital signal to an analog signal having the impairment through a fixed sample rate digital-to-analog converter.
One or more computer-readable storage media comprising instructions, which, when executed by one or more processors of a test and measurement instrument, cause the test and measurement instrument to:
- generate a digital signal to be synthesized;
- generate an impairment;
- synthesize a synthesized digital signal based on the input digital signal and the impairment;
- and
- convert the synthesized digital signal to an analog signal having the impairment through a fixed sample rate digital-to-analog converter.
Dependencies are inferred from the claim text.