Another possibility for controlling a beam or array of beams is linear scanning:
- In this case if I have an array of many elements called a sub-array.
As an example we excite only 5 out of 100 transducers. - Therefore it is like having a small probe in this area here which analyze the region in front of it.
- Then I can move the active sensors region along the whole array.
So I stop exciting the 1st and i excite the 6th.
Then I stop exciting the 2nd and i excite the 7th.
… - So it’s like moving the probe down.
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