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	Machine vision Magnetic tape recording Magnetic transducers Magnetometers Magnetometric buoy array Maneuverability Manipulator dynamics Manipulators Manipulators, kinematics Marine animals Marine electrical equipment Marine environment Marine floating structures Marine ports/harbors Marine propulsion Marine radar Marine sediment Marine sedimentology Marine structures Marine system control Marine systems Marine technology Marine telemetry Marine transportation Marine vegetation Marine vehicles Marine water quality Marine-traffic control Marine-vehicle communication Marine-vehicle control Marine-vehicle detection and tracking Marine-vehicle electronics Marine-vehicle navigation Marine-vehicle propulsion Marine-vehicle radar Marine-vehicle radar, onboard Markov processes Matched field inversion Matched filters Matched-field Matched-field processing Matching Mathematics Matrices Maximum likelihood detector Maximum-entropy methods Maximum-likelihood detection Maximum-likelihood estimation Maximum-likelihood estimator Maxwell's equations Mean-square-error estimation Mean-square-error methods Measurement Measurement errors Measurement standards Measurement units Measurement-system data handling Mechanical cables Mechanical factors Mechanical pectoral fin Mechanics Mechanoception Mesoscale eddy Metals Meteorological measurements Meteorological radar Meteorological satellites Meteorological telemetry Meteorology Metocean buoy MF radio propagation Microcomputer applications Microcomputer applications, signal processing Microcomputer networks Microprocessor applications Microseisms Microstructure Microtopography	Microwave imaging Microwave imaging/mapping Microwave measurements Microwave radiometry Mid-basin noise field Midway Military decision-making Military land vehicles Military systems Millimeter-wave radar imaging/mapping Millimeter-wave radiometry Mine avoidance Mine hunting Minimax methods Minimization Minimization methods Mining industry Mixing MIZEX Mobile robots Mobile robots, motion planning Modal analysis Mode decomposition analysis Model reference adaptive control Model-based diagnosis Model-based matched filter Model-based processor Modeling Modems Modes Modulation Modulation/demodulation Monitoring Monopulse antennas Monopulse radar Monte Carlo methods Mooring Mooring vibration Morphology Motion analysis Motion compensation Motion control Motion coordination Motion estimation Motion measurement Motion planning Motion vision Moving base alignment Moving target detection MTI radar Multi-beam sonar Multiaccess communication Multibeam antennas Multibeam echosounder Multidimensional signal detection Multidimensional signal processing Multilayer perceptrons Multipath Multipath channels Multipath effects Multipath shallow water Multiple AUVs Multiple hypothesis Multiple impacts Multiple-target tracking Multiport networks Multiprocessing Multisensor systems Multistatic scattering Multitarget tracking Multitasking Multiuser channels Multivariable self-tuning control Multivariable systems Music Mutual coherence function Mysticetes

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	Narrowband Navigation Navigation safety control Navigational inaccuracy Navy NDBC 3-m buoy Nearshore Netherlands Netherlands/U.K. Radar Wavebuoy Experimental Comparison Neural network applications Neural network controller Neural networks Neurocontrollers Neurosymbolic hybrid system Neutron activation analysis Noise Noise cancellation filter Noise gain Noise level measurement Noise measurement Nonhomogeneous media Nonlinear acoustics Nonlinear control Nonlinear control systems Nonlinear detection Nonlinear dynamical systems Nonlinear equations Nonlinear estimation	Nonlinear filtering Nonlinear least-squares Nonlinear oscillators Nonlinear prediction Nonlinear simulation Nonlinear systems Nonlinear wave propagation Nonlinearities Nonlinearities, communication systems Nonlinearity Nonparametric detection Nonparametric estimation Nonrecursive digital filters Nonstationary and selective channel Nonstationary stochastic processes Nonuniformly spaced arrays Normal modes Normal-mode modeling North Sea Norway Nuclear Magnetic Resonance (NMR) sensor Numerical analysis Numerical approximation Numerical interpolation Numerical methods Numerical simulations Nutrients