4 results about "Beam broadening" patented technology

The application provides a beam widening method, device and equipment, and relates to the technical field of computers.The method comprises the following steps: acquiring a preset beam angle coverage range of an antenna system, the antenna system comprising N*M antenna units; determining a target beam combination according to M and N; the target beam combination comprising N horizontal target beams and M vertical target beams; a phase difference of the horizontal target beam is positively correlated with a first serial number; a phase difference of the vertical target beam is positively correlated with a second serial number; a peak angle of each target beam is within the beam angle coverage range; a difference between a first peak angle and a first angle is less than a first threshold value; a difference between a second peak angle and a second angle is less than a second threshold value; and the antenna system is subjected to beam widening according to the target beam combination.The application can widen the beam of the antenna system without sacrificing the antenna power.

This invention belongs to the field of satellite communication technology, and particularly relates to a method for enhancing satellite antenna control channel coverage based on dynamic beamspan. The method includes: determining the number of symbols and symbol positions of the uplink and downlink control channels to initialize the satellite antenna control channels; wherein the number of symbols and symbol positions of the uplink and downlink control channels correspond to the symbol time slots of the initialized satellite antenna control channels; judging scheduling events based on the initialized satellite antenna control channels to determine the beamspanning mode of the uplink and downlink control channels; and transmitting and / or receiving the uplink control channels after beamspanning in the symbol time slots of the initialized satellite antenna control channels, thereby completing the satellite antenna control channel coverage enhancement. This invention achieves effective coverage of the access beam area by the uplink and downlink control channels of the data beam, thereby eliminating uplink scheduling and uplink periodic signal blind spots.

The application provides a phased array antenna beam broadening method, electronic equipment and a readable storage medium. The method comprises the following steps: constructing an optimization fitness function suitable for a phased array antenna, wherein the optimization fitness function comprises a normalized weighted combination of a beam width term for guiding an optimized half-power beam width to approximate a target beam width and a sidelobe level term for guiding an optimized sidelobe level to approximate a sidelobe suppression reference level; setting array physical parameters and beam optimization target parameters; initializing a meta-heuristic algorithm and generating an initial population, each individual in the initial population corresponding to a phase configuration scheme of all elements in the phased array antenna; starting an iterative optimization cycle, and in the case that the fitness value of each individual in the current population does not satisfy an iteration end condition, sequentially performing elite population screening, algorithm parameter updating, mutation operation, crossover operation and greedy selection operation to obtain a population of the next iteration.

This application discloses a beam control method and related products for a curved phased array weather radar, wherein the radar has multiple antenna elements arranged along an arc surface. In this scheme, M consecutively arranged antenna elements are selected from the multiple antenna elements to form a subarray, with only the antenna elements in the current subarray operating. A phase compensation amount is determined based on the position of each antenna element on the arc surface, causing the beam formed by the subarray to point towards the normal direction of the chord of its corresponding arc surface. The current beam is generated based on the phase compensation amount. The subarray is slid along the arc surface to a new starting position with a preset step, and the above steps are repeated to form multiple beams with different directions at different time periods. This application uses phase compensation to equate the curved subarray to a normal planar linear array, avoiding beam broadening and gain reduction problems. By sliding the subarray, each beam maintains its normal characteristics, achieving consistent beam performance across the entire scanning range and effectively improving the radar's observation accuracy.