ARLA/CLUSTER: Software defined doppler radar with LimeSDR Mini por Luigi Freitas (PU2SPY)

[João Costa > CT1FBF]

Software defined doppler radar with LimeSDR Mini

*Dan Maloney KC1DJT* writes on Hackaday about the work of *Luigi Freitas
PU2SPY* who shows how even beginners can experiment in the spectrum above 1
GHz with the LimeSDR-Mini transceiver

Dan writes:

Want to explore the world of radar but feel daunted by the mysteries of
radio frequency electronics? Be daunted no more and abstract the RF
complexities away with this tutorial on software-defined radar.

Taking inspiration from our own *Gregory L. Charvat N8ZRY*, whose many
radar projects have graced our pages before, Luigi Freitas’ plunge into
radar is spare on the budgetary side but rich in learning opportunities.

The front end of the radar set is almost entirely contained in a LimeSDR
Mini, a software-defined radio that can both transmit and receive. The only
additional components are a pair of soup can antennas and a cheap LNA for
the receive side.

The rest of the system runs on GNU Radio Companion running on a Raspberry
Pi; the whole thing is powered by a USB battery pack and lives in a plastic
tote. Luigi has the radar set up for the 2.4 GHz band, and the video below
shows it being calibrated with vehicles passing by at known speeds.

Read Dan's Hackaday post
https://hackaday.com/2018/11/29/sdr-is-at-the-heart-of-this-soup-can-doppler-radar-set/

Luigi Freitas PU2SPY Software Defined Radar tutorial
https://luigifreitas.me/2018-11-23/software-defined-radar-cw-doppler-radar-with-limesdr

LimeSDR Mini was developed by the Guildford-based company Lime Microsystems
https://limemicro.com/products/boards/limesdr-mini/
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