PARSAX (Polarimetric-Agile Radar in S- and X-bans)Multi-sensor observation system

Contact details:

Fred van den Zwan
Mekelweg 4, 2628CD Delft

Congestion of different wireless services in electromagnetic spectrum results in a need of multi-functional multi-user wireless front-ends with beam, waveform and polarization agilities. PARSAX system was the first of its kind waveform-agile wireless system, which could provide simultaneously communication and variety of sensing capabilities. Extension of the PARSAX system with an active electronically steered array front end will be next major step in development of a test-bed for future multi-functional wireless system (including 5G communications).

The PARSAX system has been developed to provide high quality experimental data of electromagnetic scatting from different natural (precipitation, sea waves, migrating birds, etc) and anthropogenic (air- and ground transport, wind-mills, etc) phenomena and be a flexible research platform on electromagnetic spectrum usage, new algorithms for remote sensing (detection, classification and identification of remote objects), data fusion, and sensor management.
The current PARSAX system operates at S-band centered at 3.315 GHz and at X-band centered at a frequency between 9.6 GHz and 10 GHz with a signal bandwidth of 50 MHz. Two independent transmit and four independent receive channels with software defined radio waveforms results multi-functionality of the system. In combination with a fully polarized transmit and receive antenna systems, this provides unprecedented agility of the wireless signals transmitted and received by the system.
The theoretical and validated methods provided by PARSAX used in many applications such as atmospheric remote sensing ad surveillance or tracking. Thus not only FMCW signals are used in the PARSAX radar system but also any arbitrary signal for instance SFCW, PCM (Phase Coded) signals and noise-like signals (binary or multi-level coding).
The users of the infrastructure are TU Delft (EEMCS, Climate Institute, Transport Institute, Safety and Security Institute), TNO, KNMI, Wageningen University, NLDA, Thales. Active electronically steered array extension will add to the potential users such companies as NXP.

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