I came across xag drone, which simply uses a radar for detecting and avoiding an obstacle. I am attaching details of their drone and radar here.
Any leads to companies making similar devices (4D imaging radar), will be really helpful. I will like to get a dense x,y,z point cloud for obstacles (trees, wires and poles in agriculture field). Besides the sensing solution should enable me to avoid obstacles precisely.
Link to XAG drone: XPlanet® Agricultural UAS - XAG
specifications attached as radar.png