3results about How to "Improve effective coverage" patented technology

The utility model relates to the technical field of agricultural production, in particular to a farmland plastic film mulching device which is characterized in that a frame body is obliquely turned up through a tipping bucket device, then a hydraulic device is driven to slide left and right through the tipping bucket device, the width distance of the frame body is adjusted, and a film hanging device adjusts the width along with the frame body. Then the compacting device compacts the field covered with the film, the influence of wind power on the mulching film is reduced, and effective covering of the field width change is improved; comprising a frame body, and the frame body comprises a U-shaped frame, a supporting cross rod, two cross rods, two front supports, two rear beam supports, two wheels, two wheel supports, two wheel drivers and two soil turning knives. The device further comprises a hydraulic device, a compacting device, a film hanging device, a soil scraping plate placing device, a hinging mechanism and a tipping bucket device.

The application discloses a kind of multiple-input multiple-output (MIMO) antenna parameter determination method, device, electronic equipment and storage medium.Therein, method includes: obtaining first information, second information and third information;The first information contains the engineering parameter of network equipment;The second information contains the minimum route test (MDT) data associated with the network equipment;The third information contains the digital map data associated with the network equipment;According to the first information, second information and third information, the N first beams, M second beams and the antenna parameter of each beam corresponding to the first cell corresponding to the network equipment are determined;Wherein, N and M are all integers greater than 0;The first parameter of the first beam is greater than the first parameter of the second beam;The first parameter characterizes the coverage of beam;The first parameter is determined according to the first information, second information and third information.

This application provides a channel estimation method, apparatus, storage medium, and program product. The method includes: estimating the angle of a base station and a first scattering object surrounding the base station using a discrete Fourier transform algorithm to determine first angle information; designing a codebook-based transmit beamforming matrix based on the first angle information; and transmitting an uplink pilot signal to the base station based on the codebook-based transmit beamforming matrix. The solution of this application, based on the determined angle information, designs a codebook-based transmit beamforming matrix, improving the accuracy of uplink channel estimation and overcoming the limitations of channel estimation in traditional MIMO-OFDM systems.