Multi-Channel Direction-Finding Systems Using Radio Waves TRIZ Cases
- Reflecting Plate Direction Sensing for Fixed Radio Wave Antennas
A movable reflecting plate lets a fixed directional antenna estimate radio wave arrival direction from measured angle and received power or C/N.
- Multi-Beam VSAT Positioning Antenna for GNSS-Denied Timing
When GNSS is jammed or unavailable, a multi-beam phased array extracts time and position from VSAT satellite signals.
- Adaptive Radar Beamforming for Ionospheric Clutter Separation
By removing target-signal bins from the correlation matrix, adaptive radar beamforming suppresses ionospheric clutter without burying weak targets.
- Multiport Antenna Manifold for Wideband RF Direction Finding
A multiport antenna manifold speeds AoA and polarization estimation across wide frequency ranges while reducing DF size, weight, and processing load.
- Circular Antenna Array AOA Estimation for Multipath Indoor Localization
Weighted spatial DFT and virtual linear arrays improve Wi-Fi angle-of-arrival estimation under strong indoor multipath with fewer antennas.
- Multi-Channel AoA Estimation Using ML Power Spectra
Power spectra from multiple RF channels feed a pre-trained ML model to improve AoA accuracy under multipath and antenna array imperfections.
- AR Marker Placement Using Phased Arrays for Precise People Tracking
Phased-array triangulation and AR markers turn nearby signal sources into precise visual targets for easier identification and communication.
- Radar Direction Calculation Using Summed Correlation Matrices
A radar direction calculating unit sums correlation matrices from multiple modulation sections to determine target angles.
- Radar Calibration Environment Suitability via Eigenvalue Analysis
A radar device calculates eigenvalue ratios to assess installation environment suitability for calibration.
- Multiplicative Sensor Processing for High-Resolution Object Detection
Multiplicative processing of sensor array measurements achieves high range resolution and detection accuracy while reducing computational complexity.
- Source Separation Using Sparse Time-Frequency Analysis
A signal processing method separates radioelectric sources by analyzing sparse time-frequency grids derived from discrete Fourier transforms.
- Azimuth Detection Using Multi-Interval Antenna Sub-Arrays
A radar receiver generates signals equivalent to different antenna spacings using shared elements.
- Phase Event Detection for Direction of Arrival Estimation
Detect phase events in composite signals to estimate direction of arrival using distributed detector devices.
- Wireless Communication Beam Weight Vector Control for Millimeter-Wave Side Lobe Suppression
A wireless communication device determines primary and secondary directions of departure and arrival to obtain array weight vectors for selective beam usage.
- Coprime Planar Array Spectrum Estimation via Block Sampling Tensors
Block sampling tensor construction extracts multi-dimensional features from coprime planar array signals for spatial spectrum estimation.
- Source Signal Separation Using Cross Channel Complex Spectral Phase Evolution
Cross channel complex spectral phase evolution tracks oscillator peaks to separate coherent signal sources from ambient noise.
- High-Speed Target Angle of Arrival Estimation via 2D Spectrum
A two-dimensional spatial spectrum method estimates angle and angular velocity for high-speed targets using pre-steered vectors.
- Radiation Source Orientation Matrix Optimization via Singular Value Analysis
Optimize radiation source orientation matrices using minimum non-zero singular values to reduce array element count and improve accuracy.
- Radar Direction Estimation via Correlation Matrix Extraction
A radar apparatus extracts direction data from addition correlation matrices to reduce computational load.
- Radar Apparatus Direction Estimation Using Band-Segmented MUSIC Processing
A radar apparatus integrates beat frequency spectra across channels to calculate target direction with high resolution.
- Circular Displaced Sensor Array for Direction of Arrival Estimation
Two circular antenna arrays with different radii resolve signal coherency issues and reduce computational complexity in direction of arrival estimation.
- Three Dimensional RF Search System Signal Detection
A three stage signal search system matches energy and directional data to identify low level signals.
- AR Device Antenna Array Segmentation for Indoor AoA Estimation
Segmenting the antenna array into sub-arrays resolves indoor multi-path interference, improving angle of arrival accuracy without increasing device complexity.
- Decorrelated Electromagnetic Wave Directional Analysis
Two emitting devices radiate decorrelated waves to determine incidence directions via phase differences.
- Multi-band AoA Fingerprinting for Indoor Wi-Fi Positioning
Multi-band angle-of-arrival fingerprinting maps spatial characteristics from sounding feedback to locate target stations.
- Single-Channel Receiver Exploits Mutual Coupling for Direction Finding
A single-channel receiver system exploits mutual coupling between antenna elements to achieve quasi-continuous signal observation.
- Multi-path Mitigation Processor for RF Tracking Accuracy
A multi-path mitigation processor uses digital signal processing to separate direct line-of-sight signals from reflections.