Signal Processing Engineer Interview Questions

104 signal processing engineer interview questions shared by candidates

Either a +1 or a -1 symbol is transmitted with equal probabiility. At the receivers side, some gaussian noise with variance sigma^2 is added. What is the optimal decision boundary? Derive it rigorously for the case when -1 is transmitted with probability 0.75 and +1 with probability 0.25.
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Signal Processing Engineer

Interviewed at Texas Instruments

3.8
Dec 8, 2025

Either a +1 or a -1 symbol is transmitted with equal probabiility. At the receivers side, some gaussian noise with variance sigma^2 is added. What is the optimal decision boundary? Derive it rigorously for the case when -1 is transmitted with probability 0.75 and +1 with probability 0.25.

It was a really good experience. I had interviewed at Texas A&M campus, and the interviewer was warm, showed me a seismic map and asked me questions about what features would I be looking out for. The questions were built upon my answers.
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Signal Processing Engineer

Interviewed at bp

3.8
Feb 1, 2024

It was a really good experience. I had interviewed at Texas A&M campus, and the interviewer was warm, showed me a seismic map and asked me questions about what features would I be looking out for. The questions were built upon my answers.

3 people each asked questions of their focus area - CS lady asked some trivial C++ OOP questions - Physics person asked what does X Equation say. I don't know stuff by name so I had to have the guy explain in more detail (probably looked like a fool) - Signal Processing guy showed pictures of time domain or frequency domain signals and asked what would happen if you changed to the other domain
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Signal Processing Engineer II

Interviewed at Raytheon

3.6
Dec 16, 2022

3 people each asked questions of their focus area - CS lady asked some trivial C++ OOP questions - Physics person asked what does X Equation say. I don't know stuff by name so I had to have the guy explain in more detail (probably looked like a fool) - Signal Processing guy showed pictures of time domain or frequency domain signals and asked what would happen if you changed to the other domain

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