automotive radars: a review of signal processing techniques pdf

Batteries normally have high energy density, but poor power density. Across these applications target sizes may range from less than 1 inch diameter for UXO to 20 inches or more in diameter for mines that may be over 4 feet in length. Develop a Phase II plan. These flame stabilization methods anchor the flame near the turbine exit and establish an environment for constant pressure combustion or “pressure loss” combustion. Fixing line to ground faults quickly is critical to avoiding a double ground fault and loss of service to loads. 25, 2017, pp. PHASE I: Develop a design for an intermittent and persistent ground fault detection and localization system for naval shipboard 440 VAC three phase radial power systems. Novel cooling approaches and packaging improvements should be compatible with state-of-the-art (SoA) WBG devices. The required Phase I deliverables (in addition to those outlined in the DON 21.A Proposal Submission Instructions) will include: 1) a research plan for engineering the design of the waterproof device with embedded sensors; 2) a preliminary prototype, either physical or virtual, capable of demonstrating effectiveness (accurately and reliably predict and capture changes in bubbles as measured against those established in the scientific literature) of the proof-of-concept of design; and 3) a test and evaluation plan to validate accuracy of data collection including identification of proper controls. After completing the company testing, deliver the prototype to the Navy to be tested at a Government or academic facility. Information about your device and Internet connection, including your IP address, Browsing and search activity while using Verizon Media websites and apps. Hahn, Seungyong; Radcliff, Kyle; Kim, Kwanglok, Kim; Seokho, Hu; Xinbo, Kim; Kwangmin, Abraimov; Dmytro V. and Jaroszynski, Jan. “‘Defect-irrelevant’ behavior of a no-insulation pancake coil wound with REBCO tapes containing multiple defects.” Superconducting Science and Technology Volume 29, Number 10, September 2016,. https://iopscience.iop.org/article/10.1088/0953-2048/29/10/105017/meta. .css('display', 'flex') Develop a Phase II plan. DOI: https://doi.org/10.1016/j.jesit.2015.11.008. Phase I / Such a system is undesirable for aircraft operation due to additional weight, volume, and power impact. Congratulations to all award recipients in the Sony Research Award Program! “Impact of critical current fluctuations on the performance of a coated conductor tape.” Superconductor Science and Technology Volume 32, Issue 12, October 2019, p. 17. https://iopscience.iop.org/article/10.1088/1361-6668/ab4638. The compressor must not require an additional active cooling system (e.g., liquid cooling with external heat exchanger). Commercial power transmission systems do employ ground detection methods because in high voltage transmission systems, circuit breakers can be hundreds of miles apart. In CS, the input RF signal is mixed down in dimension through an analog measurement matrix (MM) and Nyquist sampling rate is replaced by sampling random projections of the wideband signal at a rate on the order of the sparsity of the RF signal. 324603260. DESCRIPTION: When used in a nefarious manner, sUAS (DoD groups 1-3) can pose a threat to both civil and military activities [Ref 1]. Study the mechanical stability of the mini-modules. DCS is assumed to result from the formation of bubbles in tissues and blood, and there is an association between bubbles detected in the blood (VGE) post-dive and the occurrence of DCS. The cells should show power conversion efficiencies of 13% with less than 10% performance loss to break-in over 100 hours unpackaged and 1000 hours packaged. Smith et al. The transducer shall be capable of exciting resonances from heights of up to 3 yards above the target. Consider projections regarding the latency of data collection. “Detection of unmanned aerial vehicles using a visible camera system.” Applied Optics, Volume 56, Issue 3, 2017, pp. Finalize the design for desired PIC performance and satisfying volume constraints. Define operational and technical metrics that will permit the demonstration of the utility of the approach in Phase II. Acoustic Radiation Force (ARF) methods have been developed and adopted in the medical ultrasound community for clinical use. Any process proposed under this STTR topic must be capable of handling these non-ideal sources of carbon fiber [Refs 1, 5]. Proposals must appropriately describe anticipated processes and workflows for users working with the tools being developed under this STTR topic. Gömöry, Fedor; Šouc, Ján; Adámek, Miroslav; Ghabeli, Asef; Solovyov, Mykola and Vojenciak, Michal. PHASE III DUAL USE APPLICATIONS: In current commercial disaster contingency planning modalities, backup data is kept far away at one or more offsite locations. Fasano, G.; Accardo, D.; Tirri, A.E. Chennamaneni, A., Teng, J. T. and Raja, M. K. “A unified model of knowledge sharing behaviours: theoretical development and empirical test.” Behaviour & Information Technology, 31(11), pp. Ensure that the final system meets Navy unique requirements, e.g., shock, vibration, and electromagnetic interference (EMI). Therefore, there is tremendous advantage to use HTS technology in applications that require generating magnetic fields such as large-bore magnets, high-field magnets, motors, generators, and superconducting magnetic energy storage (SMES) systems. PHASE I: Design and analyze a concept of compact electro optic efficient pico second pulse laser transmitter and detector for laser receiver with > mJ per pulse per band architecture for underwater optical communication with optical link > 100 m and data rate > 1 Gb/s. PHASE III DUAL USE APPLICATIONS: Scaling of device fabrication to cost effective processes. We expect the instrument to be man portable (e.g., individual components <50 lbs), with reasonable site installation requirements (e.g., <600 W). Demonstrate in naval aviation operational environments. “K-band radar signature analysis of a flying mallard duck.” IEEE: 2013 14th International Radar Symposium (IRS), 19-21 June 2013. https://ieeexplore.ieee.org/document/6581641. If necessary, the dynamic model shall be updated and validated with new test data. Develop a Phase II plan. Efforts are currently underway to facilitate warfighters to create multimedia-based content on-demand. "Study on stabilization and quench protection of coils wound of HTS coated conductors considering quench origins – Proposal of criteria for stabilization and quench protection.” Cryogenics 63, September 2014, pp. Critical evaluation criteria include the ability to provide sufficient tracking range and accuracy in order for an RQ-7 Shadow or RQ-21 Blackjack to avoid midair collisions and near midair collisions with other aircraft such as a Lancair Evolution, Cessna TTx, or Cessna 150. Qi, S.; Ma, J., Tao, C.; Yang, C. and Tian, V. “A robust directional saliency-based method for infrared small-target detection under various complex backgrounds.” IEEE Geoscience and Remote Sensing Letters, Volume 10, Issue 3, May 2013, pp. Supercapacitors have the potential for both high energy and power density. The Navy envisions a set of software solutions that enable the capturing, curation, distribution and consuming of web-enabled, multi-media content. Deliver the optical transmitter and detector system for evaluation at a Navy lab. Avoiding DCS requires ascending in accord with often lengthy decompression schedules that are designed for the majority of divers and the most arduous diving conditions. Size, Weight, and Power (SWaP) have to be optimized with respect to given performance requirements. 2009 IEEE International Symposium on Parallel & Distributed Processing, Rome, 2009, pp. These systems are not expected to continue operation following battle damage, or can schedule system down time to locate the ground fault manually. TECHNOLOGY AREA(S): Biomedical; Human Systems; Sensors. The effectiveness of the system shall be demonstrated by satisfying the utility metrics defined in Phase I, as well as additional metrics that may be developed in Phase II. Jahangir, Mohammed; Baker, Chris J.; and Oswald, Gordon A. Techniques to separate clutter and target signatures are required. 430-440. https://doi.org/0.1109/ICUAS.2014.6842283. Oil producer Kuwait Petroleum Corp (KPC) is in talks to shorten its annual supply deals with some customers in India and Japan to nine months this year to meet demand from its new refinery, sources close the matter told Reuters. var warning_html = '

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'; OBJECTIVE: Develop a concept, design, and prototype of an acoustic source capable of directly exciting resonances in a wide variety of targets on or suspended from the seafloor. These features cause significant flow disruption and an unnecessary total pressure loss when the augmentor is not in operation. PIC-based compressive sensing in a low size, weight and power configuration would be of benefit to multiband commercial satellites. Furthermore, this method will fail if two different feeders have the same phase grounded. (2017). “Quenching to the Percolation Threshold in Organic Solar Cells.” Joule 3, 20 February 2019, pp. This technology could be relevant to many commercial scenarios to include enterprise networks and cyber-physical systems that will require resiliency and survivability in a crisis. Execute plans for methods of testing identified in the Phase I effort to prove the full-scale metrics. Med 46(1): 4-10, March 2016. https://pubmed.ncbi.nlm.nih.gov/27044455/. PHASE II: Optimize the material properties based on Marine Corps evaluation results and feedback in Phase I, and scale up the production process to reduce manufacturing costs. .css('background', '#FBD04A') One acoustic mode of interest is the transverse (or radial duct) mode typically occurring in the range of 1-10 kHz. Optical wireless communication with sufficient bandwidth, high security, and low time latency is believed to be the most promising approach to realize reliable long-distance and high-speed underwater communication links. “Architecting Resilient Computing Systems: A Component-Based Approach for Adaptive Fault Tolerance. Découvrez tous nos produits Téléchargez nos catalogues Catalogue des publications PHASE III DUAL USE APPLICATIONS: Opportunities will be sought to ground- or flight-test the complete compressor system in realistic conditions to confirm performance, reliability, lifetime, and maintenance requirements. Several stages of refinement are expected based on field test findings. PHASE I: Demonstrate feasibility through analysis and limited laboratory demonstrations, a noninvasive sensor device that is capable of measuring blood and tissue bubbles and is to be worn by pool swimmers/divers, surface supplied divers, and free swimming divers underwater. Ultimately, discrimination will leverage subtle signatures contained within the radar return that are generated by wing movement of birds or movements of surfaces (e.g., propellers) on sUAS. Propose notional elements on how the content could be distributed locally and more broadly (multi-ship scaling to Navy-wide). Work with DoD and partners towards maturing products. New materials are formally vetted over extended timelines and often pre-loaded on units/command computers prior to getting underway with no ability to update content until the next deployment. 189-241. https://doi.org/10.1016/S0012-8252(03)00042-4. Demonstrating achievable acoustic intensity values given the frequency dependent absorption of the medium is a risk. "Venous gas emboli detected by two-dimensional echocardiography are an imperfect surrogate endpoint for decompression sickness." Likewise, performance of EO/IR systems suffer their own false-alarm problems, and performance is highly dependent on atmospheric conditions. Lefébure, M. and Cohen, L.D. Knowledge Curation will create tools directly applicable to a number of corporate and government knowledge management and business process automation efforts currently underway. Develop a Phase II plan. Both radial and axial modes spuriously triggered in an RDC environment should be targeted, as well as various base pressures. Schechner, Y.Y. Complete a cost analysis of concepts established to ensure the selected technology is competitive with conventional packaging technologies. Ristic, B.; Clark, D. and Vo, B-N. “Improved SMC implementation of the PHD filter.” 2010 13th International Conference on Information Fusion, 1–8, Edinburgh, United Kingdom. If the entire range cannot be met in a single instrument design, preference will be given to the 500 nm to 2.2 um range, followed by the 340 nm to 670 nm range. Radio Frequency (RF) communication has improved bandwidth but the link distance is generally < 10 m and limited by the very short penetration depth of RF signal in the water. An RDC will also show signs of transverse instability wave modes however at a lower magnitude. The validated model shall be used to demonstrate performance of the system in a representative naval system. “Stability and Quench Protection of Coated YBCO “Composite” Tape.” IEEE Transactions on Superconductivity, Vol. The dual sensor system is suitable for use on commercial small unmanned aircraft. Jaruwatanadilok, S.; Ishimaru, A. and Kuga, Y. 495-499. https://doi.org/10.1109/LGRS.2012.2211094. “Department of Defense Interface Standard Section 300, Part 1 Low Voltage Electric Power, Alternating Current.” MIL-STD-1399-300-1 of 25 September 2018. https://quicksearch.dla.mil/Transient/069511D8D2314B34B23FD29EB086536C.pdf. PHASE II: Prototype the concept using real hardware, applications, and networks. DESCRIPTION: The current approaches for collecting and sharing knowledge among warfighters is inadequate. If the Phase II Option II is exercised, perform further test and evaluation at a Navy facility and modification if necessary to meet the performance benchmarks before the fieldable prototype product (hardware and software) shall be delivered to the Navy. Stoicescu, Miruna, Fabre, Jean-Charles and Roy, Matthieu. 62). DESCRIPTION: Underwater optical wireless communication with long optical link and high data rate is in great demand by the Navy due to the increased information transfer between submarines, unmanned vehicles and devices deployed underwater. Department of Defense. Compact electric compressors offer an alternative to this approach. 6, Nov./Dec. “Resilience.”, OBJECTIVE: Develop an instrument or measurement technology that can measure light absorption by ambient aerosol particles (~0.05 to 20+. Closed cell or filter based methods must include a plan for sampling to ensure ambient conditions are being represented. Conventional Focal Plane Array (FPA) fabrication methods are complex and often require complicated photodetector array hybridization onto Silicon-based Read on Integrated Circuits (ROIC), which reduces the final yield, increases the overall cost significantly, and limits the application. Backman et al., “On Aethalometer measurement uncertainties and an instrument correction factor for the Arctic, Atmos. • Enable authoritative curation of previously-approved content in order to ensure that information remains fresh and relevant to consumer demands. ; Austin, J.D. This topic looks for a prototype with the following parameters: Wavelength: Wavelengths that transmit through the sea water with low attenuation, Average Power Output: Threshold: 10 W; Objective: 50 W, Pulse width: pico second (ps), threshold < 5 ps; Objective < 1 ps, Bandwidth: Threshold: 1 Gb/s; Objective: 5 Gb/s, Achievable link distance: Threshold: 100 m; Objective: 200 m, Beam Quality (M2): Threshold: 1.5, Objective <1.1, Volume: Threshold: 4 inch3, Objective <2 inch3. In this STTR topic the proposer and/or academia should develop the system architecture, modeling, management, documents and implementation of the design based on Open Model Based Engineering Environment (MBEE). Ships cannot have several redundant racks of computers providing full operational capabilities as it is impossible to predict physical damage locations. Deliver the production ready system to the Government for testing at a Government or Academic facility. Technology could be commercially developed as a civilian dive computer. Compact electric compressors will enable pneumatic AFC systems independent of engine bleed air by providing compressed air sources. Integration of the actuator arrays, however, was not very straightforward as a result of having to route pneumatic systems from either the main engines or the aircraft auxiliary power unit. “Recycling of carbon/epoxy composites.” Journal of Applied Polymer Science, 94(5), December 2004, pp. The Phase I effort will include prototype plans to be developed under Phase II. This technology is applicable on other DoD platforms and commercial applications such as environmental monitoring, offshore exploration, and disaster precaution. Many ground-operated systems require a separate cooling system for higher compression ratios. ; Moccia, A. and De Lellis, V. “Morphological filtering and target tracking for vision-based UAS sense and avoid.” Conference session in Proceedings of the 2014 International Conference on Unmanned Aircraft Systems (ICUAS), Orlando, FL, May 27-20, 2014, pp. OBJECTIVE: Develop a compact electro optic efficient, 2-band efficient, pico second mj energy per pulse scalable blue (450 nm)-green (550 nm) laser transmitter/receiver that can be used for underwater optical communications with optical link > 100m and data rate > 1 Gb/s. OBJECTIVE: Develop an instrument or measurement technology that can measure light absorption by ambient aerosol particles (~0.05 to 20+ mm) including pollution, smoke, irregular dust, complex obscurants, etc. PHASE II: Based on Phase I results, candidate concept(s) will be matured through more detailed, high-fidelity analyses and the development of dual-sensor detection, tracking, and false-alarm mitigation algorithms for expected operational environments and conditions. .css('text-decoration', 'underline') Bottom line: shorter-term I am looking for a somewhat tricky, whipsawing, move higher, ideally to around $1880+/-40, but it could even challenge the recent all-time high. Develop a Phase II plan. Develop necessary PICs and integrate in a module to demonstrate and validate the PIC-based, compressive sensing system. PHASE II: Demonstrate the methodology to reclaim and reuse carbon fiber from in-process waste and scrap with data to include, but not be limited to, cost, energy input, and CO2 emissions versus current composite usage and disposal methods. Such a system must consider multisensor data fusion approaches, multiband imaging system for all-weather operations, algorithms for mitigating false alarms and enhancing detection, sensor resource management (SRM) and feature-aided target characterization and tracking. jQuery("header").prepend(warning_html); “Recycling technologies for thermoset composite materials—current status.” Composites Part A: Applied Science and Manufacturing, 37(8), August 8, 2006, pp. 6-16. High-field HTS magnets have large electrical inductances that store mega-joules of energy. PHASE I: Design, develop, and demonstrate feasibility for a fully integrated photonic integrated, circuit (PIC)-based, compressive sensing system. PHASE II: Develop and process a 50 square centimeter module on a flexible substrate, targeting >11% overall power conversion efficiency, flexible packaging, and packaged lifetimes of 5-10 years. 443–458. Radar is the only current sensor actively being procured by the Navy as a non-cooperative DAA sensor with Radio Technical Commission for Aeronautics (RTCA) Do-366 addressing radar’s Minimum Operational Performance Standard (MOPS) in the National Air Space (NAS). Upon successful completion of benchtest experiments, the developed RDC technology should be integrated in a combustor test facility to demonstrate operations at sea level conditions. Norman Tien, et al, “The Future of MEMS in Energy Technologies” ICSICT Nov 2008, YQ Jiang, et al, “Planar MEMS Supercapacitor using Nanotube Forests” ICMEMS Jan 2009, Swati Patil, et al, “Status Review on the MEMS-based Flexible Supercapacitors” Journal of Micromechanics and Microengineering, v29, n 9, Majid Beidaghi and Yury Gogotsi, “Capacitive Energy Storage in Mirco-scale Devices: Recent Advances in Design and Fabrication of Micro-supercapacitors”, Energy & Environmental Science, 2014, Issue 3, https://www.deadiversion.usdoj.gov/21cfr/21usc/802.htm, https://www.congress.gov/115/plaws/publ334/PLAW-115publ334.pdf, 7 USC CHAPTER 38, SUBCHAPTER VII: HEMP PRODUCTION 1639o, https://uscode.house.gov/view.xhtml?path=/prelim@title7/chapter38/subchapter7&edition=prelim, MIL-PRF-MCCUU E 1, July 1, 2016. Future applications, as well as recent applications such as download alleviation on the V-22 and side force increase on a vertical tail, can directly benefit from compact compressors that are integrated near the location of AFC application. jQuery('.alert-icon') This situation arises because there are no commercial methods to reclaim the fiber from these composites. Robust, commercial scale methods are sought for reclaiming carbon fiber from end-of-life parts, in-process excess materials, and scrap. Operationally relevant conditions may necessitate additional parameters such as greater depths, prolonged data collection, and eliminating motion artifacts. The laptop gets destroyed. Document approach, limitations, and metrics in final report. Hemp, due to its propensity to have a rougher hand than some other natural fibers, such as cotton, is typically blended with other fibers for clothing end uses. Instrument refinement for all of these applications would be expected in Phase III. Hottel, H.C. “A simple model for estimating the transmittance of direct solar radiation through clear atmospheres.” Solar Energy, Volume 18, Issue 2, 1976, pp. Chen, Y.; Kong, M.; Ali, T.; Wang, J.; Sarwar, R.; Han, J.; Guo, C.; Su, B.; Deng, N. and Xu, J. The two remaining computing platforms could be leveraged to provide the primary functions of the original laptop application. What is required is the bulk absorption coefficient, and developers are free to pursue integrating single particle measurements or bulk volumetric methods. Kokhanovsky, A. Demonstrate manufacturing process defect tolerance through introduction of known defects to compare against known defects in a traditional HTS conductor. A research institution can provide approaches such as mobile code, code analysis, and distribution of computing functionality. For energy storage devices, energy density and power density are the two key parameters. 1365-1373. https://amt.copernicus.org/articles/12/1365/2019/amt-12-1365-2019.pdf. Particularly for low-altitude airborne operations overland and over water, these low-RCS returns can be buried in surface clutter returns. RT&L FOCUS AREA(S): Directed energy; General Warfighting Requirements, TECHNOLOGY AREA(S): Battlespace Environments; Sensors. and Halford, C.E. .css('color', '#1b1e29') Compact compressors can be an enabling technology for AFC systems. Ensure that the prototype is available for validation. https://ieeexplore.ieee.org/document/8404312. 37, No. These nanostructures incur favorable properties for high-performance uncooled detection, such as a higher absorption coefficient, elimination of phonon-assisted excitation (phonon bottleneck), and lower mean kinetic energy per particle. A quench is critical in a magnet-based system since magnets inherently store large amounts of inductive energy that will be converted to heat at the location of the quench. Currently, there is no technology to tailor decompression schedules to the physiological state of individual divers. .css('margin', '0 15px') While existing ground fault detection circuits onboard naval ships can identify that a ground fault exists and identify which phase is experiencing the ground fault, identifying the specific feeder cable and location on that feeder cable is currently difficult. “Demonstration of speckle-based compressive sensing system for recovering RF signals.” Optics Express, Volume 26, Issue 17, 2018, pp.