A network controller classifies mobile devices into specific zones using signal strength and angle-of-arrival data from multiple wireless access points.
Segmenting packets with anti-whitening data preserves signal patterns for precise direction estimation despite whitening noise.
A three-dimensional co-prime cubic array direction-of-arrival estimation method based on cross-correlation tensor statistics.
An assisting node controls a configurable reflective surface to establish directional links, reducing beam training overhead in high path loss RF bands.
A signal detection method performs continuous direction finding across time-frequency intervals to determine result distributions for identifying sources.
Two-dimensional antenna array captures simultaneous angular measurements for RF emitter detection.
Master device determines facing direction via wearable localization to select target slave device, preventing chaotic simultaneous responses.
An active radar target uses a single sideband modulator to encode identity codes on retransmitted signals for precise ranging.
Space-time interleaved matched filters determine signal direction by fitting undersampled data to sinusoidal models, avoiding Nyquist interpolation errors.
Balanced Antipodal Vivaldi Antenna array determines direction of arrival with compact form factor, eliminating cavity absorbers.
A radar elevation angle validation system uses a corner reflector to capture signal energy values for alignment checks.
Terminal device calculates RSSI change rules to prompt moving direction, eliminating complex data processing architectures and dedicated iBeacon infrastructure.
A method measures phase differences and pulse delays between antenna signals to determine the angle of arrival.
Orientation-based resource allocation prevents sidelink positioning reference signal collisions in limited coverage environments.
Beam setting unit adjusts search groups based on detected distance and speed to optimize signal transmission in mobile wireless networks.
Segmenting training phases reduces computational complexity while maintaining high beamforming accuracy against interference.
Slotted coaxial hollow radiating elements sense electric and magnetic field projections simultaneously.
A radio frequency ranging system calculates fine time adjustments using correlator peak errors to achieve sub-clock cycle resolution.
Anchor devices estimate direction of arrival via power method algorithms, reducing energy consumption and data transfer for indoor localization.
A method utilizing big data mining from a network of spectrum monitoring nodes to determine emitter direction and position.
A multi-beam antenna separates signals via a Butler matrix to resolve low directional accuracy in RSSI-based systems.
Combining direction finding angle estimation with fine timing measurement ranging reduces radial resolution errors while lowering power consumption.
First UWB apparatus identifies registered non-UWB devices via ranging data to resolve location accuracy versus device compatibility constraints.
QR decomposition segments received signals into path components, enabling iterative multi-path interference elimination for accurate symbol detection.
A platform with two antennas determines signal direction by correlating phase relations and position changes.
Ground-based deviation meter provides azimuth reference for autonomous aircraft landing, eliminating reliance on vulnerable satellite positioning systems.
Vertical segmentation of sparse LIDAR point clouds identifies torso boundaries to resolve blind spots and improve orientation detection accuracy.
Extracting elevation from interference signal amplitude resolves the trade-off between measurement precision and device complexity in mobile radar systems.
Mobile terminal detects image processor direction via Bluetooth signal phase, eliminating manual device rotation.
Dual DSRC radios determine trailer angle via triangulation, resolving accuracy limits in extreme weather.
A wireless communication system uses fixed beam patterns and scanning training signals to determine optimal array weight vector combinations for antenna arrays.
Magnitude-squared coherence filtering removes noise at low-coherence frequencies, enhancing signal-to-noise ratio and geolocation accuracy.
A measuring system uses device sensors to determine position and orientation for signal analysis.
IQ demodulator extracts phase ratios to eliminate gain fluctuations and oscillator mismatches for accurate angle measurement.
Smart antenna beamforming device estimates direction of arrival using data subcarriers to resolve angular diversity limitations in mobile communication systems.
A radar signal processing device generates a pseudo side lobe signal to subtract harmful artifacts from pulse-compressed data.
A method estimates air propagation delay of direct waves using reflected wave departure angles and hypothetical points.
Sequential antenna activation resolves conventional RFID limitations by determining precise game piece orientation without external sensors.
Switchable antenna beams determine transponder location using RSSI values, resolving ambiguity in single-reader direction finding.
An access point uses beamforming to detect device angle and signal strength for network access.
Wireless apparatus determines distance estimation data using spatially separate antennas to measure angle of departure information from remote devices.
Collaborative positioning uses sensor orientation and external device signals to resolve antenna count constraints.
A radar sensor uses a switching device to alternate antenna elements across evaluation channels, enabling high-resolution angle detection.
A radar detector system displays signal direction and frequency band using color-coded indicators to enhance user decision-making.
A mm-wave radar system switches between detection and active modes to reduce energy usage.
A method selects antenna units for signal processing to reduce computation complexity in array antenna systems.
Adaptive beamforming weights create an annihilation operator to identify interference angles without distorting the output signal time functions.
A cross-frame antenna measures phase shift and amplitude ratio to determine the bearing angle of electromagnetic signals.
A correlation system associates received radio signals with specific transmitter paths using time and frequency difference of arrival measurements.
An adaptive antenna apparatus selects between two control processes to manage variable reactance elements and suppress interference waves.