Passive radar, challenges concerning theory and practice in military applications  (SET-187)

  RTO Specialists' Meeting
  STO-MP-SET-187 - Passive Radar, Challenges Concerning Theory and Practice in Military Applications
  Contact STO/CSO Panel Office
  Approved: 2011
Start: 1/1/2012
End: 12/1/2013
  Passive radar; PCL; EOO; LPI sensor.
  , AVT
  BelgiumCanadaCzech RepublicDenmarkEstoniaFranceGermanyGreeceItalyNCIANorwayPolandPortugalRomaniaScience and Technology OrganizationTurkeyUnited KingdomUnited States
•Theoretical and technology limitations concerning passive radar vs operational requirements, •The environment (ground, maritime, air) and their mathematical models. •Emitters of opportunity characteristics, •Optimal sensor system configuration, •Processing of non-radar signals, target detection and tracking, •Target identification, micro-Doppler analysis, passive SAR and ISAR •Countermeasures against passive radar and ECCM techniques, •Passive radar system evaluation.
Remote sensors are the very important artificial “eyes” of the army. Good sensors should be reliable, small, low power and should produce high quality information concerning targets of interest. The sensor should also have long life-expectancy in modern battlefields. Thus one of the important issues is its covert operation. Radars are commonly used nowadays to provide surveillance information and to identify targets. Classical active radars with passive response have large number of advantages. Their disadvantage is that they usually emit a strong electromagnetic radiation and thus they can be relatively easily detected, jammed and destroyed. An interesting supplement for active radars are passive radars exploiting illumination from other emitters called Emitters of Opportunity (EoO) such as FM, DBV-T, DAB and others. That is why passive radar is the interesting direction of military radar development as it avoids the need of a purpose built transmitter. As a result, passive radars have excellent LPI (Low Probability of Interception) properties. Passive Coherent Location (PCL) systems and demonstrators are in operation in several NATO countries. While passive radar exploit usually continues waves it is also possible to make a target classification on the basis of micro-Doppler signatures or ISAR imaging. While working in the multistatic configuration this type of radar can detect targets of reduced RCS. Most of passive radars are ground-based stationary installations. The recent trials concern moving platforms and a few of them have been performed using an airborne solution. Taking all together, PCL technology is expected to be a useful tool and to be successfully used in future military operations. That technology is now very mature from the scientific point of view, but while not in wide use, there is a lack of exploitation experience. Problems mentioned above have strong relations with the LTCR’s as follows: •LTCR Priority 10 – Counter Low Signature Airborne Targets; COP, active and passive sensors, target RCS vs bistatic observation angle, •LTCR Priority 12 – Counter Rocket, Artillery and Mortar; advanced radars, •LTCR Priority 25 – ISR Collection Capability. Moreover there is connection between the problems mentioned above and CNAD DAT ITEM 2 – Protection of Harbours and Ports. As far as relations with UK Taxonomy are concerned one can point out on topics as follows: •A09.02 – DSP Technology, •B06.02 – RF Sensors •B10.09 – NCTR.
Future military operations scenarios are going to more and more complicated including electronic warfare too. As a result the main task of radar described as follows: TO SEE AND NOT TO BE SEEN, becomes very difficult to fulfill. That is why the development of PCL technology as an additional tool supporting the active radar and other remote sensors is a very promising technology direction. The research and application activity should be concentrated on a surveillance system consisting of active and passive multi-spectral sensors including passive radar technology. The main objective of the proposed activity is to create the forum for presentation of recent developments, new ideas and present state of art.

Other Research Areas related to SET-187

Matching Activity(ies) Relevance
A09.02 - Digital Signal Processing Technology
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B06.02 - RF Sensors -Passive
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B10.09 - Non-Co-operative Target Recognition
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R01.02 - Protection of Harbours and Ports.
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R02.H07 - Intelligence Surveillance & Reconnaissance (ISR) Collection Capability
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R02.L02 - Counter Low Signature Airborne Targets
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R02.L03 - Counter Rocket, Artillery and Mortar
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