Questions tagged [radar]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
0 answers
24 views

What kind of low-cost equipment do I need to learn and experiment with RADAR at home?

I am interested in RADARs. However, I don't have enough time to go to school for studying RADARs. Therefore, I am thinking about self-study. What kind of low-cost equipment do I need to learn and ...
0 votes
0 answers
31 views

How to design the range and precision of a radar?

I would like to design the wave characteristics and size of antenna for a radar, but I am quite confused about how to find this information. The radar should have roughly following capabilities: ...
0 votes
1 answer
34 views

What are design considerations for an RCS test range be relocated fully underground?

Sites like the Lockheed Helendale RCS or the Tonopah test range are only known to have an underground pit to support raising or lowering of test articles. But is it technically possible to have a ...
  • 125
0 votes
2 answers
76 views

How to get correct yaw and pitch after rotation

I am trying to come up with a "stabilization" algorithm for an antenna dish. The dish can move in the azimuth (yaw) and elevation (pitch) directions. But the boat it is mounted to, moves in ...
0 votes
1 answer
67 views

How do "Your Speed" Signs work, and how do vehicles know when it's the sign's turn to display their speed?

I see these LED speed signs on the side of the road, which display the approaching vehicle's speed. What I have gathered is that they measure the time between the sending and receiving of the signals ...
0 votes
1 answer
51 views

can I extend the the antenna of a magnetron with a cable?

If I connect a piece of heavy copper wire or copper rod to the antenna cap of a magnetron can I guide the current so that microwaves would be emitted further away ?
0 votes
0 answers
64 views

Aspect Angles in 3D (Radar Cross Sectional Area)

a bit confused with regards to the whole term aspect angle in a 3D planar case. Most examples that I searched online involved either a 2D plane or a stationary object. Let say the black circle ...
  • 1
0 votes
1 answer
47 views

Can a piece of conductor be made invisible to radar by overdamping?

To my understanding every conductor reemits a bit of electromagnetic waves induced in it by radiation. If theres a way in an antenna one could create a wave of opposite phase to the incident one so ...
2 votes
2 answers
127 views

Radar/lidar for detection of humans in indoor rooom

I have a room (waiting room) about 10x10 meters and I would like to locate people in there. Celling in the room is really high, so I can place the radar above in any height I want. My questions: Is ...
  • 147
1 vote
0 answers
36 views

Where can I find an Electrical Engineering master or phd student for my GPR radar project [closed]

I want to make this project but lacking manpower and knowledge. I want to include one having knowledge and excitement. Where should I find one? I am just graduated. So no money I can offer. I can ...
  • 161
1 vote
0 answers
31 views

How to determine data size created by sensor for calculation of signal processing and transmitting over wireless communication?

I want to build some sort of SAR sensor. Since radar works high speeds and creates loads of data this should be processed faster. I am trying to find algorithms to be used for this purpose. I am at ...
  • 161
1 vote
1 answer
49 views

A radar that is not an OTH detection distance

Let's say that we have a radar that is not an OTH on a boat, and it is placed 30 meters above the ground. Is there a way for it to detect an offshore platform 152 kilometers away from it, since the ...
  • 111
0 votes
0 answers
51 views

Find electronics in wilderness; or, "I dropped my cell phone in the woods!"

Imagine I was working in the woods and dropped my cell phone somewhere in a large area where it is now hidden beneath dense vegetation. By calling it I confirm that either it has powered off or its ...
  • 1,785
0 votes
0 answers
38 views

How do brass models work (radar)?

A common practice in naval research is to construct brass models of ships to study the reflectivity of a vessel. This can (supposedly) be used to understand the way it reacts to radar and the way ...
  • 1,635