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Signal Processing

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    $\begingroup$ My doubt stems from the fact that is used in a paper, where they have considered an ULA and then while calculating the normalized spatial frequency (nsf), have used azimuth and elevation angle. If ULA can estimate only 1 direction, why did they take into consideration both angles while calculating the nsf. I have added the excerpt in my question $\endgroup$ Commented Feb 5 at 13:50
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    $\begingroup$ @ananya You are conflating what a steering vector fundamentally is with doing actual angle of arrival estimation. You can do some kind of angle estimation with the former, but steering vectors are not usually introduced for this purpose. They are instead first typical introduced to show how to steer a beam, and then we can talk about what kind of angle estimation may be necessary. $\endgroup$ Commented Feb 5 at 16:46
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    $\begingroup$ @ananya I see what you're talking about, and I have updated my answer. See if that helps. $\endgroup$ Commented Feb 23 at 2:09