2014
--
3
ORC- FireDetectionandResponseSystemForElite
NavyForces
0
2
4
6
8
10
12
14
16
-160
-140
-120
-100
-80
-60
-40
-20
0
20
Time
temperature
plank law
atmosphere
opticFOV
optic
absorption
numberof
photons
numberof
electrons
integration
time
Cluter and
noise ratio
A Proof of feasibility experiment was
executed in Jaffa harbor to remove
the risk. Vibrations of a boat were
measured using a
unique algorithm.
Result: vibrations level <
0.9 mRad
RMS
- acceptable value.
Basic concept
Proof of stabilizationFeasibility
Proof of detectioncapability
AcousticalDetection
Acoustical detection require SNR > 15dB. the SNR
was calculated considering the following parameters:
Result:SNR: 40dB>>15dB
above acceptable level.
Muzzle
Pressure level
(159dB)
Propagation
Loss (-54dB)
Atmospheric
Absorption
(-25dB)
Excess
Attenuation
(5dB)
Noise Floor
(-20dB)
A major
Risk
in the project was the
ability to stabilize the assault boat
vibrations under
2mRad.
Optical detection (MWIR) require The two
estimates SNR and CSR to be more than
4dB
.
We
simulated
the Radiation propagation from
the gun to the detector.
Result:SNR= 6dB, SCR =300> 4dB
above acceptable level
Simulation phases
Time [sec]
vibrations
experiment data analysis
OpticalDetection
Vibration signal
integrated systemwithbothacoustical and electro-optical detectors that complement each
other. Acoustical detection create a full spatial coverage while the optical detection allow
accuracy in a specific sector. The combination also yielded the range extraction feature.
Student names:
Alex Gurevich
Adiel Austin
Igal Nudelman
Department:
System engineering M.Sc.
Advisor name: Dr.
Shmuel shelf
