Radar absorbing material suppresses UWB back and side lobes, improving signal-to-noise ratio for concealed object detection.
Simultaneous phase-coded antenna transmission enables coherent signal addition for sharper 3D radar images of moving targets.
Controlled-source EM sensing uses bi-static doublets and cross-correlation to localize near-subsurface voids and conductive inclusions.
Position-sensor mapping redistributes uneven A-Scan spacing into uniform B-Scans, improving NDT feature detection and ML-ready image processing.
A multilayer neural model compensates depth, salinity, temperature, and pose interference to improve sea-bottom EM detection accuracy.
Dual-channel radar separates copolarized and circularly polarized signals to subtract background reflections and detect embedded objects reliably.
Motion-based output gating prevents false seating-status results when a vehicle occupant is moving, improving detection accuracy.
Using FMCW radiolocation with a nonlinear quadripole and delay line, this case cuts dead zone, phase noise, and emissions in GPR.
Measures ambient and ground-emitted RF signal differences to detect buried non-metallic pipes and estimate their depth, size, and material.
A vehicle radio wave sensor uses multidirectional antenna elements to detect children and adults across front and rear seats.
Marine controlled source electromagnetic surveying uses ultra-low frequency signals to determine sea-bed conductivity distributions.
Multiturn air coils and cored coils in a receiver assembly mitigate motion-induced noise for accurate geophysical surveys.
Oblique radar signals estimate ground dielectric constants to resolve depth measurement accuracy limits in standard perpendicular detection methods.
Null-Space Discriminating Ratio evaluates survey designs to distinguish resistivity structures from false positives in marine exploration.
A holographic electromagnetic exploration method uses full-area observation alternating coverage integral-difference mixed stimulus to acquire comprehensive data.
Linearly polarized electromagnetic radiation aligns with embedded reflection elements to strengthen signal return from soil interfaces.
A data weighted electromagnetic source combines multiple field contributions to enhance measured signals.
ULF/ELF electromagnetic signals overcome limited depth penetration and sensitivity of seismic methods to resolve thin horizontal resistive targets.
Multi-lobe antennas measure signal attenuation to classify objects, resolving visual obstruction issues in large spaces.
Alternating magnetic moments cancel industrial noise to improve signal quality during geological mapping.
A scanning guide generation device projects optical traverse lines onto the ground surface to direct a moving scanning device along predetermined paths.
Ground penetrating radar scans below-grade soil to identify circling roots and stem girdling before they compromise tree stability.
Information processing apparatus compares reception power periodicity at multiple points to detect obstacles in wireless communication spaces.
Windowed decomposition isolates frequency components in time-division electromagnetic survey data.
Correcting multistatic array data to monostatic format enables video-rate 3D imaging while avoiding the computational load of backprojection methods.
Inverting source and receiver locations to estimate borehole-to-surface transfer functions, reducing attenuation losses while enhancing depth resolution.
Segments transient electromagnetic responses to remove induced polarization distortion, enabling accurate extraction of polarizability and time constant data.
Metamaterial resonant structures enable electrically small antennas to detect subwavelength features in near-field electromagnetic scattering.
Coherent control source electromagnetic tomography transmits structured waves to image subsurface structures and fluid movement.
Segmented current waveforms isolate remanent ground interference from target eddy currents, enabling precise detection without complex real-time filtering.
A subsurface imaging radar transmits vertically polarized signals at the Brewster angle to refract energy into the ground.
Nonuniform sampling of reflected signals enables real-time 3D SAR image generation, resolving the trade-off between high resolution and long acquisition time.
Multi-sensor verification eliminates calibration errors and false positives in wall detection.
A compact sensor unit combines ground penetrating radar and a metal detector with vertically aligned coils to minimize electromagnetic interference.
A stationary star-shaped antenna array steers electromagnetic beams to focus on specific subsurface points.
A stationary radar apparatus uses frequency-modulated chirps to detect terrain movements.
Surface-based electromagnetic surveys overcome seismic insensitivity and well logging limitations by imaging time-dependent reservoir fluid distribution.
Multiple polarized antennas enable simultaneous 3D imaging of underground facilities, eliminating sequential scans and repositioning delays.
Conductive gel inside a sensor cable housing keeps marine survey electrodes moist and conductive, preventing signal loss during storage.
Integrating ground penetrating radar with a continuous-wave metal detector in a collapsible sensor head resolves detection range versus size trade-offs.
Single-transmitter multi-receiver radar system detects subsurface structures using ultra-wideband pulse signals across multiple receiving antennas.