Pulse Radar Circuit Diagram for Distance Measurement up to 30 Meters

I am a student of telecommunication. I have designed a pulse radar for measuring distance under 30 meters but it is not working properly. Output results are random. Can you provide me circuit diagrams of pulse radar with the same specifications? Thanks

Wouldn't it make more sense for you to post your circuit so we can have a look and perhaps identify the problem?

But, shot in the dark: speed of light is 300 Mmeters/s which is 3.3 nS/meter. 60 meters (30 meters to target + 30 meters return) is 60 * 3.3 = 198 nS. That's not a lot of time -- can your electronics/logic keep up with that?

If your radar pulse is longer than that, the reflection could be interfering with the broadcast.

There are probably a lot of other possibilities, but I'm not well versed in radar.

Sir here is the circuit of pulse radar,, That we have designed, the out put results against range measurement are randim,. Sir please check it,, and tell me what possible solution can be for this,to meaure distance accurately,and what changes should be made...
Regards: zain khan

Sorry, I don't download doc or docx files from unknown sources. Either convert it into a PDF or make it into a bitmap file (JPEG, PNG or GIF).

SORRY FOR BEING LATE.. Sir here is the circuit of pulse radar,, That we have designed, the out put results against range measurement are randim,. Sir please check it,, and tell me what possible solution can be for this,to meaure distance accurately,and what changes should be made… Regards: zain khan

SORRY FOR BEING LATE.. Sir here is the circuit of pulse radar,, That we have designed, the out put results against range measurement are randim,. Sir please check it,, and tell me what possible solution can be for this,to meaure distance accurately,and what changes should be made… Regards: zain khan...And now circuit is in PDF formate