IEEE13d
Nanometer-Resolution and Large-Dynamic-Range Optical Fiber Displacement Sensor Based on Single Pound–Drever–Hall Feedback Loop
Due to the inherently narrow resonant bandwidth of FFPI and the single PDH feedback loop, the displacement measurement with high resolution and large dynamic range was realized. Displacement ...
Frontiers22d
Optimization and accuracy analysis in pose measurement of the subreflectors of large antennas based on stereo structured light
The accuracy of the pointing error in the subreflector is of great importance to the large steerable radio telescope, so the measurement of the six degree-of-freedom ...
ABC15 Arizona29d
Multiple people stung by bees near Greenway Road and Loop 303 in Surprise
Around 6 p.m. Monday, Surprise Fire and Medical crews were called to a neighborhood near Greenway Road and Verde Vista Drive, west of Loop 303 ... the man suffered a large number of stings ...
IEEE1mon
Efficient Spatial Channel Estimation in Extremely Large Antenna Array Communication Systems: A Subspace Approximated Matrix Completion Approach
However, its computational complexity is cubic in the number of antennas, which is non-scalable for extremely large-scale antenna array (ELAA ... By eliminating the specific nested loop for the ...
Hackaday8y
Loop Antenna Is Portable
We don’t know if [OH8STN] has a military background, but we suspect he might since his recent post is about a “DIY Man Portable Magnetic Loop Antenna.” “Man-portable” is usually a ...