Precise control of LISA with Quantitative Feedback Theory

The Laser Interferometer Space Antenna (LISA) is a European mission for the detection of gravitational waves in space set to be launched in 2034. The mission will see the deployment of 3 spacecraft in heliocentric orbit keeping a triangular formation with side length of 2.5 million km. Laser beams are exchanged between the spacecraft by means of...

Control of Voicecoil transducers: Design and implementation of a Motional Feedback Loudspeaker Woofer

This master thesis describes the dynamical behaviour of a loudspeaker woofer and the modelling of it. By the use of the knowledge gained from the model, a feedback controller is implemented in order to enhance the woofer’s performance in terms of acoustic total harmonic distortion (THD) and low frequency bandwidth. The first objective of the...