Make nonlinear radar chirp

Theme:

Sensing/Signal Processing

Application:

Radar/wildlife tracking

Contact Person:

Anastasia Lavrenko

External collabolator:

Intorduction:

Nonlinear radar systems have been successfully used to detect and track small passive tags in a variety of applications. One of the common use case is tracking of tags carried by insects flying at low altitudes as is schematically illustrated in the figure below. The main operating principle in nonlinear radar is that the target of interest is nonlinear so that it produces a return signal at a frequency different of that of the illuminating signal. This allows efficient clutter reflection but introduces a number of unique challenges to the system design. 

Description:

In this project, we employ the chirp waveform, aka Frequency Modulated Continuous Wave (FMCW), in a nonlinear radar system. A number of different topics are available for investigation, such as for instance

• design and evaluation of a mutli-chirping system with distributed transmitters;
• optimal signal processing for dual-mode system employing intermodulation and harmonic products;
• testing and validation of multi-node system with helper nodes.

Requirements:

You are a motivated student looking for a project topic in the field of microwave sensing. You have interest in practically-oriented work, have basic knowledge and interest in microwaves and signal processing, and you enjoy working in the lab environment.

Additional Info