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Community Bot
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I am working on a system processing ultrasonic echo reflection. The transmitter creates a short ultrasonic pulse and the receiver analyses the reflection.

If I send two pulses (back to back or with some small defined delay) I receive two superimposed reflections. I can process these superimposed reflection with the IIR filter described in this post:

Trivial echo separationTrivial echo separation

to restore the single reflection.

My question is, could I get a signal with better signal to noise ratio by using two or more transmit pulses compared to the signal from a single pulse?

I am working on a system processing ultrasonic echo reflection. The transmitter creates a short ultrasonic pulse and the receiver analyses the reflection.

If I send two pulses (back to back or with some small defined delay) I receive two superimposed reflections. I can process these superimposed reflection with the IIR filter described in this post:

Trivial echo separation

to restore the single reflection.

My question is, could I get a signal with better signal to noise ratio by using two or more transmit pulses compared to the signal from a single pulse?

I am working on a system processing ultrasonic echo reflection. The transmitter creates a short ultrasonic pulse and the receiver analyses the reflection.

If I send two pulses (back to back or with some small defined delay) I receive two superimposed reflections. I can process these superimposed reflection with the IIR filter described in this post:

Trivial echo separation

to restore the single reflection.

My question is, could I get a signal with better signal to noise ratio by using two or more transmit pulses compared to the signal from a single pulse?

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Vlad Apostolov
Vlad Apostolov
  • 11
  • 1

Could multiple echo reflections be combined to improve signal to noise ratio?

I am working on a system processing ultrasonic echo reflection. The transmitter creates a short ultrasonic pulse and the receiver analyses the reflection.

If I send two pulses (back to back or with some small defined delay) I receive two superimposed reflections. I can process these superimposed reflection with the IIR filter described in this post:

Trivial echo separation

to restore the single reflection.

My question is, could I get a signal with better signal to noise ratio by using two or more transmit pulses compared to the signal from a single pulse?