I am using 2 HackRF One board.
One as TX the other as RX
Center frequency is 800 mhz, i need it to work from 300 - 100 mhz.
RX saves all info in a file that can be used in matlab.
You choose the area of scanning.
TX transmits with full strenght using omnidirectional antenna.
RX recieves the signal and saves it to a file.
The file is then taken to matlab and matlab should show you exactly where on the chosen map it found intefirence, and shop you 3d picture of the findings.
Also it should show size and dept of the item that made the intefirence.
Attached you will find all informations nessesary for making this project work.
Also i attached 2 pdf files with similar projects done with different boards.
Also description and pictures are added.
Also i added a pdf on how to make the signal for GPR Called (GPR Signal Building).