TRD_30_May.pdf

DISTRIBUTION A. Approved for public release: distribution unlimited.

COMBAT SHIELD Multi-Spectral Test Set

Technical Specifications

Objective Provide a test set capable of testing Missile and Laser Warning Systems on USAF aircraft such as the AN/AAR-47. Desired capability includes three optical channels (one channel for ultraviolet (UV) stimulation and two channels for laser warning stimulation).

Laser Warning Receiver (LWR)

LWR Stimulator Channel Performance

Parameter Laser 1 Laser 2

Wavelength 905 ± 20 nm 1550 ± 35 nm

Beam width (FWHM) > 2˚ x 3˚ > 2˚ x 3˚ Boresight accuracy (to front face of test set)

< 0.5°

< 0.5°

Peak on-axis irradiance at 1 m (fixed) up to 10 kHz 300 ± 100 mW.cm-2 300 ± 100 mW.cm-2

Peak on-axis irradiance at 1 m (fixed) 10 kHz to 20 kHzi

150 ± 75 mW.cm-2

300 ± 100 mW.cm-2

Safety distance, NOHD < 100 mm 0 m

Safety distance, ENOHD < 1 m < 1 m

Laser safety class 1M 1

Pulse repetition frequency range

0.25 Hz to 20 kHz

0.25 Hz to 20 kHz

Pulse width FWHM (fixed)ii 15 ± 5 ns 28 ± 7 ns Table 1 – LWR Stimulator Channel Performance

LWR Programmable Features Pulse repetition frequency (PRF) for each channel PRF capable of being updated throughout a test mission at 20 ms intervals

UV Stimulator Performance

Parameter Specification

Stimulator peak wavelength 275 ± 2.5 nm

Stimulator spectral band width

≤ 12 nm (FWHM)

Maximum on-axis irradiance over all temperature range

50 ± 10 µW.sr-1 (12 µW.sr-1 with “operational” attenuator in placei)

Dynamic intensity control > 40 dB

Modulation depth 100 %

Rise/fall time < 100 µs (10 % to 90 %) Sampling rate 200 Hz to 6000 Hz

Sampling rate control resolution

200 Hz

Beam divergence (FWHM) ≥ 20° (circular) Source size ≤ 5 mm

Auto repeat feature Maximum number of repeats:

≥ 3200 Maximum dwell time between repeats: ≥ 5 seconds

Safety distance, NOHD < 50 mm

Safety distance, ENOHD < 1 m Table 2 – UV Stimulator Channel Performance

UV Programmable Features UV output power as a function of time Selectable time base Auto-repeat (and delay) function – capable of simulating multiple rounds of hostile fire

General System Performance Specifications

Typical operating range ≤ 300 ft

Channel synchronization < 100 µs

Maximum profile duration > 32 s

Number of test programs per library > 100

Number of libraries per media > 100

Memory media type Quick release removable

User interface Sunlight readable LCD with soft keys

Aiming Adjustable sight Remote control connection Ethernet Battery Yes

Battery lifetime > 200 test operations

External power input 12 Vdc

Weight < 10 lbs Table 3 – General System Performance Specifications

Operator Control:

Software switch on/off button Selection and load of libraries and test programs Trigger/abort of a test sequence Scroll through system messages Battery status and charge level Test program status Built-in-Test messages

Test Program Generator:

Software that permits the operator to program, configure, and remotely control a test program; includes:

Channel specific parameters Setting of media classification Setting of power down time outs Provide external triggering Provide relative timing per channel within a test program Provide operation of test program media

Other External Equipment Tripod Laser Range Finder Additional UV channel attenuators Additional batteries Profile library

Physical Interface:

External serial port connector providing Ethernet connection for remote control and external trigger for inputs/outputs

Environmental Factors

Operating temperature (with batteries) -10 °C to 55 °C

Operating temperature (external power) -20 °C to 55 °C

Storage temperature (excluding batteries) -30 °C to 71 °C

Battery storage temperature -20 °C to 60 °C, < 80 % RH (limits)

< 21 °C, < 20 % RH (for maximum shelf life)

Vibration (random and sinusoidal) MIL-PRF28800F, Class 2

Shock MIL-PRF28800F, Class 2

Bench handling MIL-PRF28800F, Class 2

Splash/dust proof IP 54

EMC qualification

Radiated emissions: EN55022 Radiated susceptibility:

EN61326-1, Table 1 (3 Vm-1) EN61326-1, Table 2 (10 Vm-1)

Electrostatic discharge: EN61326-1 Table 4 – Environmental Factors

Testing Requirement:

A Production Test Report shall be provided with each unit to show compliance with this specification and to form a basis for government acceptance of each unit.