This entry will detail the geometry of multi-static passive RADAR and describe how it obtains a target solution. For this report, a multi-static passive TDOA RADAR configuration will consist of a single receiving station that monitors for direct signals from the transmitters and indirect, multi-path signals reflected from potential targets. Other configurations are possible but the two-dimensional solution described here requires three transmitter-receiver combinations. To obtain a target the system measures the time difference of arrival (TDOA) of the multi-path signal is compared to the direct path signal from the same transmitter. Solutions for possible targets are calculated using the measured TDOA timings.
This entry will cover some of the basic principals of a passive radar system. Using an example system bellow the basic principles of a multi-static TDOA passive radar system will be explained. The basic outline provided in this post will be built upon in the future.
As part of the finial year of my degree at the University of Aberdeen, I completed an undergraduate thesis. In my thesis, I considered the concept of a multi-static passive radar system capable of tracking civil aircraft using transmitters of opportunity.
I aim to use this journal as a means of exploring the ideas outlined in my thesis and expand upon them. Using this journal I will break down my thesis and re-examine the background, principals, motivations, benefits and applications of a multi-static passive radar system.
This entry will discuss the motivations behind a civil aviation application for a passive radar system.