# Agenda

## Signal Processing Seminar

- Thursday, 14 September 2017
- 13:30-14:30
- HB 17.150

### Signal Processing on Kernel-based Random Graphs

**Matthew Morency**

We present the theory of sequences of random graphs and their convergence to limit objects. Sequences of random dense graphs are shown to converge to their limit objects in both their structural properties and their spectra. The limit objects are bounded symmetric functions on $[0,1]^2$. The kernel functions define an equivalence class and thus identify collections of large random graphs who are spectrally and structurally equivalent. As the spectrum of the graph shift operator defines the graph Fourier transform (GFT), the behavior of the spectrum of the underlying graph has a great impact on the design and implementation of graph signal processing operators such as filters. The spectra of several graph limits are derived analytically and verified with numerical examples.

Additional information ...### Agenda

- Thu, 19 Oct 2017
- 13:30
- HB 17.150

### Signal Processing Seminar

#### Stefan Wijnholds

#### Blind calibration of radio astronomical phased arrays

Using sparse reconstruction to access scenes without known calibrator sources

- Tue, 24 Oct 2017
- 10:00
- Aula Senaatszaal

### PhD Thesis Defence

#### Yongchang Hu

#### Signal Strength Based Localization and Path-Loss Exponent Self-Estimation in Wireless Networks

Receiver signal strength is easily observed. How can we do accurate localization based on this?

- Wed, 25 Oct 2017
- 10:00
- Van der Poel-zaal (EWI LB01.220)

### MSc BME thesis presentation

#### Insani Abdi Bangsa

#### System Building Blocks for Mathematical Operators Using Stochastic Resonance -- Application in an Action Potential Detection System

MSc thesis presentation on Stochastic Resonance Systems for Biomedical Applications