The focused acoustic field technique

Article Abstract:

Phase conjugation (PC) is a procedure which results in PC 'mirror' in which time reverses an incident probe source signal to its source location. The entire procedure of PC, time reversal and time domain operations is called time reversal mirror and can operate freely within a medium's complexity. A time reversed focusing reflected field can be achieved in optics by a laser passing through a nonlinear medium. This process can be achieved in acoustics by a signal processing/retransmission procedure.

Science & research, Signal Processing Equip NEC

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Expendable penetrometer for rapid assessment of seafloor parameters

Article Abstract:

An expendable seafloor probe has been developed by the SACLANTCEN - Lamont-Doherty Earth Observatory of Columbia University to gauge sediment physical properties in situ. The probe shares the same geography and data transmission technology as standard bathythermograph probes. The new probe, however, uses acclerometer instead of a thermistor and special electronics and computer logic are used to gauge and register various countenances of the impact and penetration of objects on the seafloor.

Product development, Electronic Oceanographic Equip

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Anti-missile defense-how effective are todays soft-kill systems?

Article Abstract:

Soft-kill systems are essentially Electronic Countermeasures (ECM) available to the above-water battlespace. This system was developed to provide defense against the deadly anti-ship missile (ASM) and the anti-ship cruise missile (ASCM) threat.

Search and navigation equipment, Electronic Countermeasures, Usage, Missile attack warning systems

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