The proceedings contain 20 papers. The topics discussed include: gimbal stability requirements for target image enhancement;making flight motion tables invisible;general characteristics of motion simulators used in th...
ISBN:
(纸本)9780819475671
The proceedings contain 20 papers. The topics discussed include: gimbal stability requirements for target image enhancement;making flight motion tables invisible;general characteristics of motion simulators used in the performance tests of infrared camera systems;support technologies involved in the development and implementation of radiometric systems for sensor calibration, characterization, and HWIL testing at AEDC;digital video timing analyzer for the evaluation of PC-based real-time simulation systems;the infrared and semi-active laser simulation capabilities at the AMSTAR production bay HWIL facility;comparison of GPU and FPGA for HWIL scene generation and image processing;using GPU convolutions to correct optical distortion in closed-loop real-time missile simulations;and digital tapped delay lines for HWIL testing of matched filter radar receivers.
Ground testing of space- and air-borne imaging sensor systems is supported by Vis-to-LWIR imaging sensor calibration and characterization, as well as hardware-in-the-loop (HWIL) simulation with high-fidelity complex s...
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ISBN:
(纸本)9780819494986
Ground testing of space- and air-borne imaging sensor systems is supported by Vis-to-LWIR imaging sensor calibration and characterization, as well as hardware-in-the-loop (HWIL) simulation with high-fidelity complex scene projection to validate sensor mission performance. To accomplish this successfully, there must be the development of tools, technologies, and methodologies that are used in space simulation chambers for such testing. This paper provides an overview of such efforts being investigated and implemented at Arnold Engineering Development Complex (AEDC).
We report on the design and testing of a 2-color dynamic scene projector system based on the MIRAGE-XL infrared scene projector. The system is based on the optical combination of two 1024x1024 MIRAGE-XL resistive arra...
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ISBN:
(纸本)9780819494986
We report on the design and testing of a 2-color dynamic scene projector system based on the MIRAGE-XL infrared scene projector. The system is based on the optical combination of two 1024x1024 MIRAGE-XL resistive arrays. Algorithms derived for 2-color operation are discussed and system performance data is presented, including radiometric performance, sub-pixel spatial co-registration and compensation for spectral cross-talk.
A model is described for the problem of optimally projecting a pixellated light source onto a pixellated imaging sensor, in the context that the projected source is used for performance testing of the sensor. The mode...
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ISBN:
(纸本)9780819494986
A model is described for the problem of optimally projecting a pixellated light source onto a pixellated imaging sensor, in the context that the projected source is used for performance testing of the sensor. The model can be used, for example, to compute the paraxial design requirements of the projection lens, given that the parameters of all other subsystems in the problem are fixed. For remote sensing applications, where the performance of a sensor focused at infinity is to be tested, the projector lens becomes a collimator. For optimal projection when using the source for performance testing of the sensor, one then requires that the projector pixels are not spatially resolved by the imaging sensor, the entrance pupil of the sensor is overfilled without vignetting, and also, where feasible, the sensor field of view is overfilled. The model uses paraxial analytical ray tracing approximations to provide a set of equations that are used in an associated spreadsheet to determine the basic collimator requirements such as effective focal length, f/#, and relief distance, given the geometrical characteristics of the projector spatial light modulator and the sensor under test. Beyond this, the model provides a sense of intuition and guidance prior to detailed computerized ray tracing.
The proceedings contain 10 papers. The topics discussed include: analytic determination of optimal projector lens design requirements for pixilated projectors used to test pixilated imaging sensors;a two-color 1024...
ISBN:
(纸本)9780819494986
The proceedings contain 10 papers. The topics discussed include: analytic determination of optimal projector lens design requirements for pixilated projectors used to test pixilated imaging sensors;a two-color 1024×1024 dynamic infrared scene projection system;characterization of SWIR hyperspectral imager with a multispectral polarized scene projector;high-dynamic range DMD-based infrared scene projector;calibration of IR test chambers with the missile defense transfer radiometer;precision radiometric surface temperature (PRST) sensor;development of tools, technologies, and methodologies for imaging sensor testing;dynamic thermal signature prediction for real-time scene generation;coding for parallel execution of hardware-in-the-loop millimeter-wave scene generation models on multicore SIMD processor architectures;and the design of flight motion simulators: high accuracy versus high dynamics.
Arnold Engineering Development Center (AEDC) is tasked with visible-to-LWIR imaging sensor calibration and characterization, as well as hardware-in-the-loop (HWIL) testing with high-fidelity complex scene projection t...
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ISBN:
(纸本)9780819490346
Arnold Engineering Development Center (AEDC) is tasked with visible-to-LWIR imaging sensor calibration and characterization, as well as hardware-in-the-loop (HWIL) testing with high-fidelity complex scene projection to validate sensor mission performance. They are thus involved in the development of technologies and methodologies that are used in space simulation chambers for such testing. These activities support a variety of program needs such as space situational awareness (SSA). This paper provides an overview of pertinent technologies being investigated and implemented at AEDC.
The Space Chambers at the Arnold Engineering Development Center (AEDC) are continually exploring new technologies to improve their characterization, calibration, and mission simulation testing capabilities for imaging...
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ISBN:
(纸本)9780819490346
The Space Chambers at the Arnold Engineering Development Center (AEDC) are continually exploring new technologies to improve their characterization, calibration, and mission simulation testing capabilities for imaging sensors. Part of this task is to develop and integrate methods to simulate high-temperature sources (on the order of 3,000 K) while maintaining the integrity of the low radiometric background within the cryovacuum chambers. The High Temperature Source Simulator project at AEDC is exploring the use of laser diodes, LEDs, and resistive sources of varying IR wavelengths to simulate these high-temperature sources within AEDC's Space Chambers. A brief summary of previous work will be presented with a more detailed discussion of the recent cryospectral shift of the tested sources. We found that the IR LEDs spectrally shift up to about 20% from their ambient center wavelength while the resistive sources do not shift at all (as expected). Several different resistive sources as well as LEDs of varying wavelengths have been procured and will continue to be tested.
The proceedings contain 15 papers. The topics discussed include: spectral shift of infrared leds and resistive sources;contrast analysis for DMD-based IR scene projector;large-scale silicon photonic infrared scene pro...
ISBN:
(纸本)9780819490346
The proceedings contain 15 papers. The topics discussed include: spectral shift of infrared leds and resistive sources;contrast analysis for DMD-based IR scene projector;large-scale silicon photonic infrared scene projector by down conversion;performance of bottom emitting isolated LWIR LED devices for IR scene projection;development of photonic crystal based large format ir scene projection technology;liquid crystal on silicon (LCOS) devices and their application to scene projection;a hybrid approach to non-uniformity correction of large format emitter arrays;ultra high temperature (UHT) infrared scene projector system development status;radical rise-time enhancement of a resistive IRSP array;design considerations for a high-temperature, high-dynamic range IRSP;scene projection technology development for imaging sensor testing at AEDC;application of scene projection technologies at the AMRDEC SSDD HWIL facilities;and performance parameters in the design of flight motion simulators.
The proceedings contain 26 papers. The topics discussed include: two-band DMD-based infrared scene simulator;projection technologies for imaging sensor calibration, characterization, and HWIL testing at AEDC;effective...
ISBN:
(纸本)9780819481276
The proceedings contain 26 papers. The topics discussed include: two-band DMD-based infrared scene simulator;projection technologies for imaging sensor calibration, characterization, and HWIL testing at AEDC;effective and apparent temperature calculations and performance analysis of mid-wave infrared light emitting diodes for use in infrared scene projection;recent advances in high density area array interconnect bonding for 3D integration;component-level testing updates for the infrared polarized scene generator demonstrator;large format resistive array scene simulation validation testing and readiness;non-destructive missile seeker flight testing: HWIL in the sky;the synergistic roles of test and simulation in the life cycle of the army tactical missile system;infrared transfer radiometer for broadband and spectral calibration of space chambers;and MMW target and clutter characterization using the range instrumentation synthetic aperture radar.
Arnold Engineering Development Center (AEDC) is involved in the development of technologies that enable hardware-in-the-loop (HWIL) testing with high-fidelity complex scene projection to validate sensor mission perfor...
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ISBN:
(纸本)9780819485892
Arnold Engineering Development Center (AEDC) is involved in the development of technologies that enable hardware-in-the-loop (HWIL) testing with high-fidelity complex scene projection to validate sensor mission performance. Radiometric calibration with National Institute of Science and Technology (NIST) radiometers has improved radiometric and temporal fidelity testing in this cold background environment. This paper provides an overview of pertinent technologies being investigated and implemented at AEDC to support a variety of program needs such as HWIIL testing and space situational awareness (SSA).
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