IN9450 – Array Signal Processing

Schedule, syllabus and examination date

Choose semester

Teaching and exams spring 2022

In light of the most recent infection control regulations, we will at the start of the spring semester 2022 increase our online teaching, while we at the same time try to maintain in-person teaching where this is possible. We hope to go back to more in-person teaching later on in the semester. You will be informed about any changes in teaching or examinations on the semester page, in Canvas or through your regular channels.

Read more about postponed exams for the autumn semester 2021.

Course content

The topic is spatial signal processing with emphasis on imaging systems and direction of arrival estimation. The course puts emphasis on the difference between spatial domain and time domain signal processing. It provides an in-depth review of classical and adaptive array processing techniques in the temporal and Fourier domains and gives an overview of their use in several application areas.

Learning outcome

After completing this course, you will have an understanding of:

  • Apertures and arrays: Finite apertures, resolution, spatial sampling and arrays of discrete sensors, sidelobes and grating lobes.
  • Beamforming: Delay-and-sum and frequency-domain beamforming, array gain and effects of finite accuracies. Coherence-based image reconstruction methods.
  • Adaptive beamforming: Beampattern optimization, eigenanalysis methods, and how to assess the algorithm performance.
  • Applications: Examples will be given from acoustic imaging, synthetic aperture sonar/radar, and tomography, among others. You will learn about central wave propagation and simulation concepts.
  • Current research: Know how the theory explained is used in current research and have an overview of the research performed within this field at the Department.

Admission to the course

PhD candidates from the University of Oslo should apply for classes and register for examinations through Studentweb.

If a course has limited intake capacity, priority will be given to PhD candidates who follow an individual education plan where this particular course is included. Some national researchers’ schools may have specific rules for ranking applicants for courses with limited intake capacity.

PhD candidates who have been admitted to another higher education institution must apply for a position as a visiting student within a given deadline.

IN3190 – Digital Signal Processing/IN4190 – Digital Signal Processing, MAT1120 – Linear Algebra, IN1910 – Programming with Scientific Applications/IN1010 – Object-oriented Programming and IN3015 – Ultrasound Imaging/IN4015

Overlapping courses


4 hours of tuition per week that will be a mix of lectures and plenary review of exercises, etc.

The mandatory assignments must be approved prior to the exam. Approval of a mandatory assignment is only valid for the same year as the assignment is submitted. Rules for mandatory assignments. Note that the assignments in IN9450 will be more extensive than the ones in IN5450.

You should familiarize yourself with the rules that apply to the use of sources and citations. If you violate the rules, you may be suspected of cheating/attempted cheating.


Oral exam (or written if the student number is high).

It will also be counted as one of your three attempts to sit the exam for this course, if you sit the exam for one of the following courses: IN5450 – Array Signal Processing

Examination support material

No examination support material is allowed.

Language of examination

You may write your examination paper in Norwegian, Swedish, Danish or English.

Grading scale

Grades are awarded on a pass/fail scale. Read more about the grading system.

Resit an examination

Students who can document a valid reason for absence from the regular examination are offered a postponed examination at the beginning of the next semester. Re-scheduled examinations are not offered to students who withdraw during, or did not pass the original examination.

Special examination arrangements, use of sources, explanations and appeals

See more about examinations at UiO

Last updated from FS (Common Student System) Jan. 16, 2022 10:18:51 PM

Facts about this course

Teaching language
Norwegian (English on request)