The GR PDU Utilities
summary
GR PDU Utilities extend GNU Radio’s in-tree PDU API with concrete blocks: tag-to-PDU and PDU-to-stream converters, a message trigger, data converters, an implementation of M. Ossman’s WPCR, and FHSS tools. Timing Utilities and FHSS utils handle burst detection and per-pdu metadata (frequency, symbol rate). Measured round-trip turnaround drops from milliseconds to about 270 microseconds on a USRP B210 with tuned UHD transport settings. All code is on GitHub and reported to work in real recordings.
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chapters (14)
- 0:00Start
- 2:07Motivation
- 6:42Gruhd Stream Tags
- 7:36Packet Communications
- 18:02Round Trip Latency
- 19:49Notable Blocks
- 20:15Tag Message Trigger Block
- 21:03Data Converter Blocks
- 21:25Whole Packet Clock Recovery
- 21:59Flow Controller
- 26:12Block Buffer
- 29:31Energy Detector
- 32:07Latency Test
- 32:18Latency Determining Flow Graph
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