Simulating a radar with transponder on the Flying vehcile

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Anunay Sinha
Anunay Sinha 2013-6-13
评论： Alex Antipin 2014-1-15
Hi I need help with the simulation of Transponder on the Flying Vehicle being interrogated from ground RADAR. Can this be done with Phased Array System Toolbox? If yes can you guide me further on this.
To explain transponder more further. I have a Flying Vehicle with transponder in it. Radar sends an interrogating signal which is received by transponder. On receiving the signals transponder responds back with a different frequency which is detected back at ground station. Since this is fresh source of signal it has dominant presence on the receivers than the reflected waves. (Any how they are at different frequencies.)

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Honglei Chen
Honglei Chen 2013-6-13
This should be doable with Phased Array System Toolbox. Basically, the ground radar has a transmitter (can be modeled by phased. Transmitter and phased Radiator) sends a signal to the receiver of flying vehicle (can be modeled by phased.Collector and phased.ReceiverPreamp). After the signal is received, you can do whatever the signal processing you need in MATLAB, including change frequencies. Once the signal is ready, you will simulate a transmitter at the vehicle side and then transmit it to the receiver of the radar.
HTH
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Anunay Sinha
Anunay Sinha 2013-7-24
Sorry for the delay on my side as well. Yes I get it that since communication is one way travel time should be half. But i want to simulate it in such a way that transponder starts sending signal only once it is triggered from a probing signal. So it is like I have radiator at the antenna which sends the signal out. This is received at the collector which is present on the target and on receiving the signal another radiator present on the target will send across radio wave in the direction of the ground antenna. Also initial signal which was coming towards the target gets reflected and travels back. So basically what I would like to see at the antenna is two peaks. One of the reflected signal from the target and one bigger peak of the fresh signal originating from the target. Also ideally the transponder signal will lag behind the reflected signal due the computation time that my equipment's will take.
I hope this clarifies it a little.
Alex Antipin
Alex Antipin 2014-1-15
Hello all, I have the same task to model a secondary radar. Could you send me your code for this system, please?

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