Hi everyone. I am currently involved in a project which is using UWB technology to sense/localise/image objects behind walls. The requirement is not to have any transceivers in the room that is going to be imaged. Currently, the idea I have is to detect the backscatter UWB pulses reflected from the objects inside, and process them by looking at their amplitude and time of arrival. However, the main problem is to build a UWB transmitter and have a receiver with receiver sensitivity high enough to detect the backscatter pulses. I have purchased a few Decawave DWM1000 modules to try it out, but they only work by having a transmitter inside the room for the two way ranging method to work. Does anyone have any experience related to this topic or UWB technology, please help me out with any ideas that are feasible, or any design plans I should have. Thanks a lot!