Digital processing of today’s radar signals

High Resolution Surveillance Radar Patrick Beasley, Tom Leonard, Tim Lamont-Smith A presentation to: BMEA 20 th October 2010 QinetiQ Proprietary

Content ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

1 Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],2 PILOT

2 PILOT – technology demonstrator

2 PILOT ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

2 PILOT PPI recorded in the strait between Sweden’s mainland and the island of Oland with a bridge approx 50m high at 15nm. Range rings every 4nm Note phase noise flash from large target

2 PILOT ,[object Object],courtesy Thales Marine navigation Battlefield surveillance Air surveillance

3 Tarsier® - parameters ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

3 Tarsier® - The effect of phase noise from large targets

3 Tarsier® - Providence zoomed in

3 Tarsier® - rain at Malvern, 90s intervals

3 Tarsier® Floodlights Houses Trees Phase noise flash Ground clutter

4 Cheddar Reservoir ,[object Object],[object Object],[object Object]

4 Cheddar Reservoir ,[object Object],[object Object],[object Object],[object Object]

4 Cheddar Reservoir – Raytheon display

5 Recent Advances – Harbour / Coastal surveillance requirement ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

5 Recent Advances ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Optimal solution is to adapt the mode to the environment

5 Recent Advances – coherent operation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

6 Future radar Parameter PILOT (military only) 24GHz harbour radar (military or civil) Range resolution 4.5m to 36m (range scale dependent) 1.5m (all range settings) Clutter rejection Poor (non-coherent) Very good (coherent and non-coherent) Phase noise -110dBc/Hz at 166kHz -135dBc/Hz at 166kHz (COTS) -160dBc/Hz (custom) Instrumented range 36km 24km Antenna size 1.8m 0.7m Interference Susceptible in highly populated band – uses frequency diversity Sparsely populated band

6 Conclusions ,[object Object],[object Object],[object Object],[object Object]

Digital processing of today’s radar signals

Digital processing of today’s radar signals

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Digital processing of today’s radar signals