Polarimetric synthetic aperture radar data can be used to retrieve structural Air Vent and textural information of the surface and is widely used in land cover classification.To extract relevant parameters, the data must first be compensated for the orientation of the polarimetric scattering targets.However, existing methods for deorientation proce
This paper proposes an improved algorithm applied to path planning for the inspection of unmanned aerial vehicles (UAVs) in urban pipe corridors, which introduces a collaborative game between spherical vector particle swarm optimization (SPSO) and differential evolution (DE) algorithms.Firstly, a high-precision 3D grid map model of urban 5 Piece Ou
We have carried out a detailed study of individual pulse emission from the pulsar J2022+5154 Sharpening Stones (B2021+51), observed at 2250 MHz using the Jiamusi 66 m radio telescope.We have investigated the modulations in single-pulse behavior using fluctuation spectral analysis, which shows the presence of two prominent periodicities, around 5 an
Renewable energy sources generated locally are becoming increasingly popular in order to achieve carbon neutrality in the near future.Some of these sources are being used in neighbourhood (local, or energy communities) grids to achieve high levels of self-sufficiency.However, the Nail clippers objectives of the local grid and the distribution grid
We demonstrate a Yb-doped hybrid fiber with anomalous dispersion in the 1 μm spectral range, where asymptotically single-mode behavior is achieved with a differential mode amplification technique.The fiber has a dispersion of 70-100 ps/(nm·km) in the spectral range from 1.020 μm to 1.055 μm and a sharp dispersion peak (a