PHASE I: Develop a design for a tool set to produce abstract models based on descriptions of the context the models will be used in and descriptions of the input and output data. The Phase I deliverables will be a report describing the state of the art and the design.
PHASE II: Build and demonstrate a generalized abstraction system based on the Phase I design. The demonstration must show how contexts and data are defined and how the tools use these definitions to generate abstract models that reduce the amount of data required to achieve mission success.
PHASE III: Integrate the capability developed in Phase II into an appropriate Battle Command application. During this phase, the capability needs to clearly demonstrate an ability to meaningfully and quantitatively reduce the cognitive demands on a decision maker or a collaborative team of decision makers operating within the confines of the context-based data abstraction model. The end-state of such a capability would be a Network Centric Warfare (NCW) software service or application that reduces a commander and/or his staff’s cognitive burden during mission planning or execution. Also, the ability to easily design abstract models has non military application to many forms of situation management including emergency management. The topic will be linked to ATO R.ARL.2009.05 THINK
REFERENCES:
1. Harold Abelson and Gerald Jay Sussman Structure and Interpretation of Computer Programs (second edition) MIT Press: http://mitpress.mit.edu/sicp/full-text/sicp/book/
2. Minimising the Context Prediction Error. Sigg, S., Haseloff, S., David, K. , Dept. of Commun. Technol., Kassel Univ. in Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th.
3. A Study on Context Prediction and Adaptivity Sigg, Stephan, Haseloff, Sandra, David, Klaus, Communication Technology, University of Kassel, Germany; Digital Information Management, 2007. ICDIM '07. 2nd International Conference.
KEYWORDS: information processing, data, abstraction, cognitive, model, human
A09-089 TITLE: Innovative Silicon Imager for Head-Mounted Night Vision
TECHNOLOGY AREAS: Information Systems, Electronics
OBJECTIVE: Develop and implement innovative techniques and designs for optimizing silicon as a photo-detector for use in head-mounted night vision sensors. To receive consideration for award, the proposed approaches must be fundamentally novel and potentially ground-breaking, not merely refinements or extrapolations of existing approaches for signal collection, signal gain, and/or signal readout. These techniques and designs shall be incorporated in prototype imaging sensors whose measured data satisfies no-moon nighttime requirements for radiant sensitivity, signal amplification, overall noise floor, and power consumption. A critical consideration of proposed approaches will be the potential sensor signal-to-noise ratio over a nighttime spectral power band ranging from the Near-Infrared (700 nanometers) to the Short-Wave Infrared (1300 nanometers). Under no-moon nighttime conditions, the incident radiant power over this band ranges from 1-10 picowatts per square centimeter per nanometer.
DESCRIPTION: Silicon remains the pre-eminent detector material for charge-coupled devices (CCDs) and Complementary Metal Oxide Semiconductor (CMOS) arrays, also known as Active Pixel Sensors (APS). The commercial market for such devices has enabled leap-ahead advances in silicon pixel design, but the thrust of these advancements has been directed towards ever smaller pixel dimensions and formats, with only modest gains for low-light imaging at the shot-noise level. Such low-light applications generally require larger pixel sizes (approx. 10-microns), a thicker photosensitive layer (>15 microns) for sufficient near-infrared sensitivity, unfiltered spectral response (i.e., monochrome), and larger formats (approx. 16mm diagonal), in conjunction with state-of-the-art levels for thermal dark current and signal readout noise. Most critically, head-mounted night mobility applications also demand high resolution (>1 megapixel) arrays, low total power (<2 watts), and minimal motion-smearing during the normal head-panning required for situational awareness, which has typically mandated a 60 Hertz frame rate.
Recent approaches for achieving the above have met with only limited success. The thicker silicon needed for near-infrared sensitivity results in significant optical crosstalk, thereby imposing an intrinsic tradeoff between high-light Nyquist imaging and low-light, noise-limited resolution. On-chip CCD signal amplification techniques to mitigate readout noise have incurred both high excess noise and prohibitive power consumption (10-20 watts). Optimized silicon design/fabrication techniques have reduced thermal dark current levels to 10 picoamperes or less per square centimeter at room temperature, but such levels still require temperature stabilization for effective sensor operation at high ambient temperatures (>35-deg Centigrade).
Recent innovations in silicon-based photo-detectors for optimized signal collection, signal gain, and low-noise signal amplification have demonstrated the potential to extend useful nighttime spectral sensitivity beyond the conventional silicon cutoff (1100 nm) out into the short-wave infrared spectral band. Such a silicon-based detector holds the potential of enabling leap-ahead night vision capabilities for a low cost, low power, solid-state sensor.
PHASE I: Develop, fabricate, characterize, and deliver a silicon-based photo-detector compatible with conventional silicon CMOS or CCD fabrication techniques, with useful nighttime room temperature (300K) response ranging over 600 to 1300 nanometers. Data provided for this photo-detector should include the following: (1) Detector spectral quantum efficiency measured throughout the 600-1300 nm spectral band that is not less than 0.10 (or 10%); (2) Photo-detector signal response between 600-1100 nm that is measured to be not less than 10 amperes/watt; (3) Detector signal-to-noise ("D-Star" or "D*") that is measured to be not less than 5e12 cm(Hz1/2)/W at some point within each of the following spectral bands: 600-800nm; 800-1000nm; and 1000-1300nm. This detector shall be delivered in industry-standard packaging to enable follow-on Government characterization.
PHASE II: Develop, fabricate, characterize, and deliver a silicon-based photo-detector array compatible with conventional silicon CMOS or CCD fabrication techniques, with useful nighttime room temperature (300K) response ranging over 600 to 1300 nanometers. This photo-detector array shall comprise a minimum of 100 pixels and shall be capable of generating still images and/or image sequences at an effective pixel integration time of 30 milliseconds or less. These images/image sequences shall demonstrate useful imagery when the photo-detector array is illuminated with not greater than one (1) picowatt per square centimeter per nanometer over the 600-1300 nm spectral band. This photo-detector array shall be delivered in industry-standard packaging to enable follow-on Government characterization.
PHASE III: The Phase III effort shall include the development, fabrication, characterization, and delivery of a prototype silicon-based imaging camera based upon conventional silicon CMOS or CCD fabrication techniques, with useful nighttime room temperature (300K) response ranging over 600 to 1300 nanometers. The camera shall provide Nyquist-limited resolution when it is illuminated with not greater than 10 picowatts per square centimeter per nanometer over the 600-1300 nm spectral band. This camera shall comprise a minimum array of 320 x 240 pixels, a maximum array format of 16mm (diagonal), and shall operate at a minimum 30Hz progressive frame rate. The total power consumption shall be not greater than one (1) watt.
In addition to their pervasive role in military nighttime mobility and fire control tactics, low-light sensors have a growing presence in the commercial arena. Industrial security, police surveillance, fire & rescue, and day/night remote tele-presence are among the applications that would benefit from true no-moon nighttime imaging at much lower size, cost, and power consumption than existing low-light solid-state sensor solutions.
REFERENCES:
1. Mackay, Craig D. et al, Sub-Electron Read Noise at MHz Pixel Rates, Proc. SPIE 4306, pp. 289-298, January 2001.
2. Yadid-Pecht, Orly et al, Optimization of noise and responsivity in CMOS active pixel sensors for detection of ultralow-light levels, Proc. SPIE 3019, pp.125-136, April 1997.
KEYWORDS: Night vision, solid state, silicon detector, CMOS, active pixel sensor, CCD
A09-090 TITLE: Heat Actuated Cooling System
TECHNOLOGY AREAS: Ground/Sea Vehicles
The technology within this topic is restricted under the International Traffic in Arms Regulation (ITAR), which controls the export and import of defense-related material and services. Offerors must disclose any proposed use of foreign nationals, their country of origin, and what tasks each would accomplish in the statement of work in accordance with section 3.5.b.(7) of the solicitation.
OBJECTIVE: Advance the state-of-the-art in heat actuated cooling technology by designing and building a prototype unit capable of providing air-conditioning and heating at high and low ambient temperatures. The energy efficiencies, based on the fuel heating value, will be competitive with or superior to utilizing an existing diesel engine driven generator sets to power fluorocarbon-based vapor compression Environmental Control Units (ECUs). The cooling unit will be capable of converting the heat of combustion of JP8 and DF2 directly into cooling rather than relying on electric power.
DESCRIPTION: The development of key heat actuated cooling components is necessary to allow further development of integrated co-generation and tri-generation systems in the size ranges applicable to military standard families. The results of SBIR Topic 2007.1 OSD07-ES1 – “Portable Cogeneration of Power and Cooling” have demonstrated that current net weight and volume of heat actuated cooling systems exceed that of generator-driven vapor compression systems of similar capacity. A smaller, lighter, more efficient heat actuated cooling system will lead to a smaller power source and increased mobility for tactical users. This will directly enhance the deployability of the Objective Force.
A military standard family of ECUs exists, all of which operate using chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs). The Army has 25,000 units fielded ranging from 0.5 to 5 refrigeration ton cooling capacity and the US Air Force has about 10,000 fielded units as well. Most of these units are nearing the end of their useful lives, and will have to be replaced soon. This presents a unique opportunity to “leap ahead” with the introduction of a cheap, efficient, and easily supportable refrigerant and reap the benefits of small size and weight, higher efficiency, and greater heating performance.
Each overall design has its advantages and disadvantages in terms of energy efficiency, capacity, controllability, size, weight, production cost, and maintainability. A successful design will find the optimal balance of the trade-offs given the requirements and constraints of a given application.
The primary target application for this heat actuated cooling system is the Standard Integrated Command Post Shelter (SICPS), which is essentially a large rigid-wall shelter that sits on the back of a HMMWV. Currently, a 10kW auxiliary power unit (APU) is used in combination with a 18,000-BTU-per-hour (or 1.5-ton cooling) split pack ECU. Approximately 3-kW are used for hotel loads within the shelter and ~7-kW is used for the ECU. Information on the SICPS APU is here: http://www.pm-mep.army.mil/technicaldata/10kwapu.htm. Current Army systems weigh approx. 290-kg (both 10kW APU and 18kBTU/h ECU) and consume 1-gal-per-hour of fuel. The end goal for this SBIR topic is to demonstrate technology readiness level (TRL) 5 technologies for this application with 205-kg dry weight and 0.7-gal-per-hour fuel consumption.
PHASE I: Significantly advance the state-of-the-art through novel design and development of one or more of the following key components for the heat actuated cooling unit: evaporator, absorber, desorber, control system, or other novel components. Design and model the overall system to demonstrate its feasibility and key features, including performance characteristics over a wide range of operating conditions for cooling and heating.
PHASE II: Design and fabricate full size working prototypes in nominal 1.5-ton cooling capacity as developed in Phase I. Fabricate and test these prototype ECUs to military requirements using laboratory test stands.
PHASE III: The results from the Phase II effort will afford the contractor the capability to provide US Army and the DOD a new family of advanced state-of-the-art scalable heat actuated cooling systems (350 – 35000 W) for use with small (battalion), medium (brigade), and large (division) applications and in all extreme tactical environments. Resulting key cooling components can transition to upgrade existing commercial cooling systems to optimize performance and reliability. Resulting system designs have potential to transition to automotive applications, commercial cooling and heating market , high-tech applications (Global Positioning System (GPS), composites, etc) and applications which support the Global War on Terror Advanced (emergency mobile hospitals, temporary field police stations and developing nations) .
REFERENCES:
1. Ashok S. Patil, PhD., Darwin H. Reckart, Frank E. Calkins, P.E.: ADVANCED COOLING/HEATING CONCEPTS FOR US ARMY SYSTEMS, 5th SITHOK International Congress, October 3-4 2002, Preddvor–Slovenia.
2. Dr. Ashok S. Patil, Frank Calkins, Nicholas Sifer: Co-generation Power and Cooling For US Army Mobile System, 6thIIR Gustav Lorentzen Natural Working Fluids Conference, 29th August - 1st Sept 2004, Glasgow Scotland.
3. Frank Calkins: Potential Use of Nano Technology in MIL-STD ECUs, Micro Nano Breakthrough Conference, July 28-29 2004, Portland Oregon.
4. Frank Calkins: Heat Actuated Cooling, Interagency Advanced Power Group -- Mechanical Working Group Meeting, April 22-23, 2008, Gaithersburg, MD.
KEYWORDS: air-conditioning, cooling, heating, heat exchanger, condenser, evaporator, absorber, desorber, burner
A09-091 TITLE: Rapid Frame Rate Focal Plane Arrays for Active Electro-Optic Applications
TECHNOLOGY AREAS: Sensors, Electronics
ACQUISITION PROGRAM: PEO Ammunition
The technology within this topic is restricted under the International Traffic in Arms Regulation (ITAR), which controls the export and import of defense-related material and services. Offerors must disclose any proposed use of foreign nationals, their country of origin, and what tasks each would accomplish in the statement of work in accordance with section 3.5.b.(7) of the solicitation.
OBJECTIVE: Development of a high speed focal plane array and readout for insertion into standoff vibrometers, Laser Radar (LADAR), or other coherent optical detection sensors.
DESCRIPTION: The army seeks two-dimensional focal plane arrays suitable for active electro-optic detection. These transducers are applicable to laser vibrometers and LADAR which in turn shall support multiple needs: maneuver support for detection of Improvised Explosive Device (IED) and landmine detection, battlespace awareness for observation of human activity and infrastructure mapping, and line of sight lethality through target identification.
Emerging focal plane array technologies suggest that read-outs can achieve frame rates of 4 million frames per second for limited size arrays. Insertion of this technology into existing sensor designs has the potential to greatly reduce size and complexity of such systems. The proposal shall discuss the focal plane array design to be performed in phase 1 and how fabrication and laboratory demonstration is achievable in phase 2. The demonstration shall provide at least 3000 pixels in a rectangular format. The focal plane array does not necessarily need to be square but both dimensions shall have 30 elements or more to achieve greater than or equal to 3000 pixels. The read-out shall sample each pixel at a sampling rate greater than 4 mega samples per second. The phase 2 demonstration shall show this functionality in either a vibrometer or LADAR application. Careful attention shall be paid to carrier-to-noise ratios to maintain accuracy of the post-processed data.
PHASE I: Determine technical specifications of a focal plane array with at least 3000 pixels each with 4 mega samples per second or greater. Develop an initial concept design and model key elements of the array and readout. Provide model results that predict performance under received optical intensities as would be observed in field applications. Provide a detailed plan for the fabrication process.
PHASE II: Construct and demonstrate the operation of a prototype array in a laboratory vibrometer or LADAR application. The demonstration shall verify pixel independence, 4 million frames per second, and readouts that will support continuous acquisition. The raw output data will be stored and processed for verification of a calibrated vibration source or target range, real time processing is not required.
PHASE III: The transducer development outlined here could be inserted into a variety of active electro-optic applications. The vibrometer application is currently being pursued for IED and landmine detection at standoff distances and LADAR systems are implemented in a variety of military systems for target identification. Commercially one might envision visual or infrared images combined with range information for interactive virtual environments where objects are viewed in 3d color. This type of application might then be used for battlefield simulations or remote teleoperater applications.
REFERENCES:
1. Owen K. Wu, Rajesh D. Rajavel, Terry J. De Lyon, John E. Jensen, Mike D. Jack, Ken Kosai, George R. Chapman, Sanghamitra Sen, Bonnie A. Baumgratz, Bobby Walker and Bill Johnson, "MBE-grown HgCdTe multi-layer heterojunction structures for high speed low-noise 1.3–1.6 µm avalanche photodetectors," Journal of Electronic Materials, pages 488-492, Volume 26, Number 6, June, 1997.
2. Ian Baker, "II–VI Narrow-Bandgap Semiconductors for Optoelectronics", Springer Handbook of Electronic and Photonic Materials, pages 855-885, Springer US, 2006.
3. A. Rogalski, "Competitive technologies of third generation infrared photon detectors," Opto-Electronics Review, pages 458-482, Volume 14, Number 1, March, 2006.
4. Jeff Beck, Milton Woodall, Richard Scritchfield, Martha Ohlson, Lewis Wood, Pradip Mitra and Jim Robinson, "Gated IR Imaging with 128 × 128 HgCdTe Electron Avalanche Photodiode FPA," Journal of Electronic Materials, pages 1334-1343, Volume 37, Number 9, September, 2008.
KEYWORDS: focal plane array, LADAR, LIDAR, readout, frame rate, laser vibrometer
A09-092 TITLE: 50- 100 Watt Wind Energy Harvesting in Light Tactical Applications
TECHNOLOGY AREAS: Ground/Sea Vehicles, Materials/Processes, Electronics
The technology within this topic is restricted under the International Traffic in Arms Regulation (ITAR), which controls the export and import of defense-related material and services. Offerors must disclose any proposed use of foreign nationals, their country of origin, and what tasks each would accomplish in the statement of work in accordance with section 3.5.b.(7) of the solicitation.
OBJECTIVE: To develop a vehicle mounted energy-conversion efficient, wind turbine system that can be quickly erected and stowed. It must be capable of operation and movement over the range of military environmental and transportation conditions.
DESCRIPTION: Wind as a source of alternative energy is rapidly becoming a viable resource for electrical energy generation. A system capable of efficient conversion of wind to electrical energy is well suited for on-the-move applications. The major challenge is to develop a system that can be quickly deployed and rapidly stowed away in a rigid container for transport in less then 4 minutes. The rigid container will prevent turbine component from physical damage during transport. The system is expected to operate in harsh weather environments including wide daily swings in temperature, sand and snowstorms, hail and rain, and strong winds in excess of 60 mph.
The energy requirement for Army communication, situational awareness and target acquisition systems that are candidates for this system is estimated to be between 60 – 100W. Currently this power is being supplied by either the vehicle or an external generator. The wind turbine will supplement energy supplied by the conventional generator. This may result in savings on engine usage. Depending on the load and wind conditions, between 10-100% and that will lead to savings on fuel and maintenance while reducing air pollution.
The applications for commercial, consumer sectors and Government agencies are substantial. These applications include hybrid vehicles, electrical power for remote locations, backup power for telecommunication devices and computers, and forestry service sensors.
In addition to turbine development the effort must address the efficiency of the system generator coupled with an electronic control to effectively extract wind energy. It is desired that the system provide a minimum of 50 W of power in a 12 mph wind. Output should be a nominal 24 volts DC.
This SBIR seeks to investigate the possibility of development a rapidly deployable wind turbine for mobile applications by employing currently available technology. The development must address ease of use, compactness, resilience and energy conversion efficiency.
PHASE I: The purpose of this phase is to conduct a five month study and experimentation leading to selection of a potential turbine designs that will be easily deployed and stowed. Upon completion of this phase the following criteria is expected to be met:
1. The turbine can be stowed in a container to occupy a minimum of 1/8 of the turbine’s deployed volume.
2. The time required to deploy and stow the system should not exceed 4 minutes.
3. Demonstrate that the turbine can provide 50W of electric power at 12 mph wind. The system shall not exceed 45 pounds.
4. Provide a concept study to demonstrate that the device will maintain specified performance when subjected to severe environmental conditions of a continuous exposure to fine dust/sand, salt spray, temperature ( -40 to +120 C), UV and petroleum products (fuel, lube).
PHASE II: The purpose of this phase is to further develop a mobile wind generating system with emphasis on an efficient generator and power conversion electronics for maximum power point tracking. The maximum power point tracking will engage the generator to optimally convert wind energy to electricity. Upon completion of this phase the following criteria are expected to be met:
1. Demonstrate high efficiency power conversion of the generator
2. Demonstrate improved performance of the system over a wide range of wind speeds from 8 to 25 mph by employing maximum power tracking circuitry. Demonstrate the system’s ability to self-protect itself in wind speeds above normal operating conditions, up to 60 mph.
3. Demonstrate system packaging and in transport resiliency of the system in adverse weather environments.
4. Demonstrate system’s ease of both rapid deployment and stowaway process.
5. Deliver a prototype for evaluation and testing in government laboratories
PHASE III: Based on Phase II results, select the best possible designs for the military and/or commercial markets. This phase focuses on developing a product for mass production and intended for field implementation and for commercial/consumer markets. These applications will include hybrid vehicles, electrical power for remote locations, backup power for telecommunication devices and computers, and forestry service sensors.
1. Develop methodology for high production and cost reduction for both military and commercial markets 2>
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