Non-Uniform Sampling for High-Bandwidth ADCs
Non-Uniform Sampling for High-Bandwidth ADCs: Reducing Data Throughput Without Sacrificing Fidelity
This article highlights a non-uniform sampling (NUS) experimental demonstrator for RF microwave reception based on a zero-IF design. It uses a Teledyne EV10AS940 direct conversion ADC. The demonstrator will enable NUS performance evaluation in spectrally crowded RF microwave environments across multiple Nyquist zones. The study focuses on evaluating compressive sampling and data volume reduction techniques to reduce overall system complexity and the resulting power consumption.
The demonstrator aims at extracting signal power across the entire analog bandwidth (>30 GHz) of the target data converter. Sampling at rates up to 12.8 giga samples/second (12.8 Gsps) leads to output data rates of several hundred giga-bits per second; a huge real-time processing challenge. Much of the focus therefore is on establishing suitable hardware and data compression techniques in support of the study’s basic objective.
This study shows that NUS can be successfully deployed to detect and demodulate crowded multi-carrier DVB-S2 signal streams in direct conversion contexts.
If you wish to read more, please click on the following link to download the complete paper here.
You can also watch the demo video of Non-Uniform Sampling with the EV10AS940 ADC below:
Exploring the Potential of Non-Uniform Sampling with the EV10AS940 ADC
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