4results about How to "Reduce multipath effects" patented technology

The application provides a positioning method and device of a terminal device and a storage medium. The method comprises the following steps: a first network element receives a reference signal; according to the reference signal, a time domain channel response of the reference signal is determined; the time domain channel response is filtered to obtain a direct path time domain signal; according to the direct path time domain signal, subcarrier phase information of the direct path frequency domain signal is determined, and the subcarrier phase information is used to determine position information of the terminal device. The application can improve the positioning accuracy of the terminal device.

The utility model relates to a single-layer double-frequency GNSS antenna which comprises an antenna medium and a bottom layer metal structure, a high-frequency radiation metal patch is arranged at the center position of the upper surface of the antenna medium, a low-frequency radiation metal patch is arranged on the upper surface of the antenna medium, fan-shaped metal radiation patches are arranged at the four corners of the antenna medium, and the fan-shaped metal radiation patches are arranged on the bottom layer metal structure. An arc-shaped isolation seam is arranged between the fan-shaped metal radiation patch and the low-frequency radiation metal patch; metal through hole structures are arranged on the high-frequency radiation metal patch, the low-frequency radiation metal patch and the fan-shaped metal radiation patch, and feeding points are arranged on the high-frequency radiation metal patch and the low-frequency radiation metal patch. The utility model belongs to the technical field of antennas, a high-frequency radiation metal patch and a low-frequency radiation metal patch are arranged on an antenna medium and are isolated through a non-metal gap, a double-frequency function is obtained, the size of the antenna is effectively reduced, complexity of a traditional multi-layer structure is avoided through a single-layer integrated design, and miniaturization application is facilitated.

The invention provides a spectrum inversion high-resolution processing method based on strong axis stripping, and relates to the field of seismic exploration, and the technical scheme is that the spectrum inversion high-resolution processing method based on strong axis stripping is characterized by comprising the following steps: inputting original seismic data, and extracting strong reflection wave event seismic data; subtracting the extracted strong reflection wave event seismic data from the original seismic data to obtain seismic data after strong reflection suppression; replacing the original seismic data with the seismic data subjected to strong reflection suppression, and establishing a spectrum inversion objective function; and solving the spectral inversion objective function to obtain a high-resolution seismic section which suppresses strong reflected waves and highlights weak signals. The method has the advantages that a spectral inversion high-resolution processing mechanism based on strong axis stripping is clear, and time domain iteration deconvolution stripping of the strong reflection wave event, spectral inversion high-resolution processing stripping of the strong reflection wave event, strong reflection suppression and spectral inversion high-resolution thin layer recognition are involved.

The invention relates to the technical field of perception, and discloses a life body perception method and device, and the method comprises the steps: collecting a first perception signal corresponding to at least one perception path in a preset time period; for each first sensing signal, according to the first sensing signal, calculating a multi-dimensional environment characteristic value of a sensing path corresponding to the first sensing signal, the multi-dimensional environment characteristic value being used for representing a multi-dimensional environment change condition of the sensing path in a preset time period; determining at least one second sensing signal in all the first sensing signals according to all the multi-dimensional environment characteristic values; all the second sensing signals are input into a preset life body sensing model, life body sensing information of the sensing path corresponding to each second sensing signal is obtained, and the life body sensing information at least comprises life body type information and / or life body position information. Therefore, by implementing the method, the accuracy and comprehensiveness of life perception can be improved.