Direction-Finding Diversity Systems Using Radio Waves TRIZ Cases
- Rotating Direction-Finder Antenna for Broadband Phase Sensing
Rotating antenna units capture phase differences at multiple angles to resolve signal direction ambiguity across a broad frequency band without calibration.
- Removable Window-Mounted Antenna Arrays for Aircraft Direction Finding
Removable frames or floor fixtures place direction-finding antenna arrays by aircraft windows without structural changes, cutting installation and testing effort.
- Single-Chain Angle-of-Arrival Estimation via Antenna Switching
Sequentially switch one receive chain between antennas to estimate wireless AOA without the cost and power of multiple chains.
- 5G NR Positioning Using Differential AOA and AOD to Filter Multipath
Comparing differential angle of arrival with differential angle of departure identifies line-of-sight beams for user equipment positioning.
- Radio Direction-Finding System Antenna Array Segmentation
Segmented antenna arrays with dedicated and common RF receive paths reduce hardware complexity while maintaining high direction-finding precision.
- Wireless Localization Anchor Selection and Grid Filtering
Adaptive anchor selection and grid-based extended Kalman filtering resolve localization accuracy versus system complexity trade-offs in wireless networks.