- C -
	Cable Cable dynamics Caisson placing and other marine civil engineering operations Calibration California California Ocean Plan Camera calibration Cameras Canada Capillary waves Carrier phase Carrier-sense multiaccess Caustics CCD camera CCD image processing CCD image sensors CDMA (code-division multiple-access) CEAREX Cell mapping Channel adaptive processing Channel modeling Chaos Chaotic propagation Charge coupled image sensors Chemical sensing Chemical sensors Chemical transducers Chemioceptions Chemistry Chi-square distribution Chiral medium Chirality Chirp Chirp modulation Chirp radar Chlorobenzenes Chronic Chum salmon Circuit topology Circular Circular arrays Circular surface waves Circuli Class A- and K-scatter Classification Client-server systems Climate change Climatology Clocks Closed loop systems Clutter Coastal oceanography Coaxial transmission lines Cobalt materials/devices Cochannel interference Code-division multiple-access Coding/decoding Coherence Coherent structures Communication channels Communication system maintenance Communication system nonlinearities Communication system performance Communication system routing Communication systems	Communications Compensation Complementary filter Complex sinusoidal signal Complexity theory Compliance control Computation time Computer architecture Computer graphics Computer languages Computer network reliability Computer vision Computer vision tracking Computerized navigation Concatenated coding Concentration Conditional sampling Conductivity measurement Conductivity-temperature-depth sensors Configuration analysis Conic holography Connectors Continuous transmission frequency modulation (CTFM) sonars Continuous wave Continuum robot Control system synthesis Control systems Conventional beamformer Convergence of numerical methods Convolutional codes Convolutional coding Coordinate rotation Coordinate rotation digital computer (CORDIC) CORDIC Correlated noise field Correlation detectors Correlation dimension Correlation log Correlation measurements Correlation methods Correlation sonar Correlation weighting Correlations Correlators Corrosion Cost optimal control Coupled mode analysis Covariance analysis Covariance functions Covariance matrices Covariance matrix Cramér-Rao bound Cramer-Rao lower bound Cross array Cross-modal coherences Cross-range resolution Crosstalk CTD Current measurement Current meters Current profiler Curve fitting CW radar Cycle spectrum Cyclostationarity Cylinders Cylindrical arrays

- D -
	D-RLS Data acquisition Data analysis Data association Data bank Data communication equipment Data communications Data compression Data fusion Data logging Data management Dead reckoning Decca Navigator (radio location) Decimation Decision making Decision-feedback equalizers Decision-support systems Decomposition Principle (multiple scatter) counting functionals Deconvolution Decorrelation Deep towed system Deep water target detection Delay effects Delay estimation Delay systems Delay systems, linear Delay systems, nonlinear Delay-lock loops Delayed decision Demodulation Demon processing DEMON spectrum Demonstration Density Density measurement Depth sensors Describing functions Detection Dexterous manipulators Dextrous gripper Dextrous manipulator DFT Dielectric measurements Diesel engines Differential equations Differential phase-shift keying Diffraction Digital communication systems Digital communications Digital control	Digital demodulation Digital filters Digital modulation/demodulation Digital signal processing (DSP) Digital signals Digital VCR recorder Direct control Direction estimation Direction-finding Direction-of-arrival estimation Directional wave spectra Directional wave spectrum Directivity power pattern Discrete Fourier transforms (DFT's) Discrete-time Discrete-time systems Disks Dispersion Dispersive channels Displacement estimation Displacement measurement Display human factors Display processing Distance measurement Distortion Diversity methods Diving Docking DOM Doppler Doppler current profiler Doppler effect Doppler estimation Doppler measurements Doppler processing Doppler radar Doppler radar, pulse Doppler shift Doppler spectrum Doppler spread Double SOFAR Downslope conversion Drag Drifting buoys Drogued buoy tracking Drops DSP Dynamic coupling Dynamic positioning Dynamic response Dynamic response behavior Dynamic vision