Naval Weapons Principles Training
Naval Weapons Principles Training Course Description
This four-day Naval Weapons Principles Training is designed for students that have a college level knowledge of mathematics and basic physics to gain the “big picture” as related to basic sensor and weapons theory. As in all disciplines knowing the vocabulary is fundamental for further exploration, this course strives to provide the physical explanation behind the vocabulary such that students have a working vernacular of naval weapons.
• Scientific and engineering principles behind systems such as radar, sonar, electro-optics, guidance systems, explosives and ballistics. Specifically:
• Analyze weapon systems in their environment, examining elements of the “detect to engage sequence” from sensing to target damage mechanisms.
• Apply the concept of energy propagation and interaction from source to distant objects via various media for detection or destruction.
• Evaluate the factors that affect a weapon system’s sensor resolution and signal-to-noise ratio. Including the characteristics of a multiple element system and/or array.
• Knowledge to make reasonable assumptions and formulate first-order approximations of weapons systems’ performance.
• Assess the design and operational tradeoffs on weapon systems’ performance from a high level.
• From this course you will obtain the knowledge and ability to perform basic sensor and weapon calculations, identify tradeoffs, interact meaningfully with colleagues, evaluate systems, and understand the literature.
With onsite Training, courses can be scheduled on a date that is convenient for you, and because they can be scheduled at your location, you don’t incur travel costs and students won’t be away from home. Onsite classes can also be tailored to meet your needs. You might shorten a 5-day class into a 3-day class, or combine portions of several related courses into a single course, or have the instructor vary the emphasis of topics depending on your staff’s and site’s requirements.
Introduction to Combat Systems: Discussion of combat system attributes
Introduction to Radar: Fundamentals, examples, sub-systems and issues
The Physics of Radar: Electromagnetic radiations, frequency, transmission and reception, waveforms, PRF, minimum range, range resolution and bandwidth, scattering, target cross-section, reflectivities, scattering statistics, polarimetric scattering, propagation in the Earth troposphere
Radar Theory: The radar range equation, signal and noise, detection threshold, noise in receiving systems, detection principles, measurement accuracies
The Radar Sub-systems: Transmitter, antenna, receiver and signal processor (Pulse Compression and Doppler filtering principles, automatic detection with adaptive detection threshold, the CFAR mechanism, sidelobe blanking angle estimation), the radar control program and data processor (SAR/ISAR are addressed as antenna excursions)
Workshop: Hands-on exercises relative to Antenna basics; and radar range analysis with and without detailed losses and the pattern propagation factor
Electronic Attack and Electronic Protection: Noise and deceptive jamming, and radar protection techniques
Electronically Scanned Antennas: Fundamental concepts, directivity and gain, elements and arrays, near and far field radiation, element factor and array factor, illumination function and Fourier transform relations, beamwidth approximations, array tapers and sidelobes, electrical dimension and errors, array bandwidth, steering mechanisms, grating lobes, phase monopulse, beam broadening, examples
Solid State Active Phased Arrays: What are solid state active arrays (SSAA), what advantages do they provide, emerging requirements that call for SSAA (or AESA), SSAA issues at T/R module, array, and system levels
Radar Tracking: Functional block diagram, what is radar tracking, firm track initiation and range, track update, track maintenance, algorithmic alternatives (association via single or multiple hypotheses, tracking filters options), role of electronically steered arrays in radar tracking
Current Challenges and Advancements: Key radar challenges, key advances (transmitter, antenna, signal stability, digitization and digital processing, waveforms, algorithms)
Electro-Optical theory. Radiometric Quantities, Stephan Botzman Law, Wein’s Law.
Electro-Optical Targets, Background and Attenuation. Lasers, Selective Radiation, Thermal Radiation Spreading, Divergence, Absorption Bands, Beers Law, Night Vision Devices.
Infrared Range Equation. Detector Response and Sensitivity, Derivation of Simplified IR Range Equation, Example problems.
Sound Propagation in Oceans. Thermal Structure of Ocean, Sound Velocity Profiles, Propagation Paths, Transmission Losses.
SONAR Figure of Merit. Target Strength, Noise, Reverberation, Scattering, Detection Threshold, Directivity Index, Passive and Active Sonar Equations.
Underwater Detection Systems. Transducers and Hydrophones, Arrays, Variable Depth Sonar, Sonobuoys, Bistatic Sonar, Non-Acoustic Detection Systems to include Magnetic Anomaly Detection.
Weapon Ballistics and Propulsion. Relative Motion, Interior and Exterior Ballistics, Reference Frames and Coordinate Systems, Weapons Systems Alignment.
Guidance: Guidance laws and logic to include pursuit, constant bearing, proportion navigation and kappa-gamma. Seeker design.
Fuzing Principles. Fuze System Classifications, Proximity Fuzes, Non-proximity Fuzes.
Chemical Explosives. Characteristics of Military Explosives, Measurement of Chemical Explosive Reactions, Power Index Approximation.
Warhead Damage Predictions. Quantifying Damage, Circular Error Probable, Blast Warheads, Diffraction and Drag loading on targets, Fragmentation Warheads, Shaped Charges, Special Purpose Warheads.
Underwater Warheads. Underwater Explosion Damage Mechanisms, Torpedoes, Naval Mine Classification.
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