摘要:
A method for processing data from an antenna array including a plurality of elements distributed on opposite sides of a central point is disclosed. The method includes determining an adjustment for a first signal associated with a beam and a first element of the plurality of elements. The first element is located on a first side of the central point of the antenna array. The method includes applying the determined adjustment to the first signal, and applying the determined adjustment to a second signal. The second signal is associated with the beam and a second element of the plurality of elements. The second element is located on a second side of the central point of the antenna array substantially a same distance away from the central point as the first element.
摘要:
A method for mitigating interference using a phased array receiving antenna is provided. The method includes perturbing a first communications beam and a second communications beam received at the phased array receiving antenna to generate a first composite beam and a second composite beam, cross-correlating the first composite beam and the second composite beam, receiving communications data using the first composite beam and the second composite beam, and determining a direction of a received interference signal based on the cross-correlation of the first composite beam and the second composite beam.
摘要:
A method for mitigating interference using a phased array receiving antenna is provided. The method includes perturbing a first communications beam and a second communications beam received at the phased array receiving antenna to generate a first composite beam and a second composite beam, cross-correlating the first composite beam and the second composite beam, receiving communications data using the first composite beam and the second composite beam, and determining a direction of a received interference signal based on the cross-correlation of the first composite beam and the second composite beam.
摘要:
A system is provided for overlapping cells for wireless coverage in a cellular communication system. The system includes a beam-weight generator and beamformer coupled to the beam-weight generator. The beam-weight generator is configured to generate a plurality of beam weights including at least first and second sets of beam weights. And the beamformer is configured to apply the first and second sets of beam weights to signals in a cellular communication system. The cellular communication system provides coverage over a geographic region divided into cells arranged in overlapping first and second layers of cells having criteria optimized for communication by respective, distinct first and second types of user terminals. In this regard, the criteria are reflected in the first and second sets of beam weights.
摘要:
A method for processing data from an antenna array including a plurality of elements distributed on opposite sides of a central point is disclosed. The method includes determining an adjustment for a first signal associated with a beam and a first element of the plurality of elements. The first element is located on a first side of the central point of the antenna array. The method includes applying the determined adjustment to the first signal, and applying the determined adjustment to a second signal. The second signal is associated with the beam and a second element of the plurality of elements. The second element is located on a second side of the central point of the antenna array substantially a same distance away from the central point as the first element.
摘要:
A system is provided for overlapping cells for wireless coverage in a cellular communication system. The system includes a beam-weight generator and beamformer coupled to the beam-weight generator. The beam-weight generator is configured to generate a plurality of beam weights including at least first and second sets of beam weights. And the beamformer is configured to apply the first and second sets of beam weights to signals in a cellular communication system. The cellular communication system provides coverage over a geographic region divided into cells arranged in overlapping first and second layers of cells having criteria optimized for respective, distinct first and second types of services, or communication by respective, distinct first and second types of user terminals. In this regard, the criteria are reflected in the first and second sets of beam weights.
摘要:
A satellite is configured to communicate with a ground base station to provide coverage for communication in a first geographic region, and suppress from the communication, interference from a second geographic region. The satellite includes an onboard beamformer (OBBF), feed array and feeder-link antenna. The OBBF is configured to produce first and second spot beams for respective ones of the first and second geographic regions. The feed array is configured to receive first and second signals in respective ones of the first and second spot beams for respective geographic regions. At least portions of the first and second signals carry respective ones of the communication and the interference. The feeder-link antenna, then, is configured to transmit the first signals and second signals to the ground base station that is configured to suppress any of the interference from at least the portion of the first signals carrying the communication.
摘要:
A system is provided for overlapping cells for wireless coverage in a cellular communication system. The system includes a beam-weight generator and beamformer coupled to the beam-weight generator. The beam-weight generator is configured to generate a plurality of beam weights including at least first and second sets of beam weights. And the beamformer is configured to apply the first and second sets of beam weights to signals in a cellular communication system. The cellular communication system provides coverage over a geographic region divided into cells arranged in overlapping first and second layers of cells having criteria optimized for respective, distinct first and second types of services, or communication by respective, distinct first and second types of user terminals. In this regard, the criteria are reflected in the first and second sets of beam weights.
摘要:
A satellite is configured to communicate with a ground base station to provide coverage for communication in a first geographic region, and suppress from the communication, interference from a second geographic region. The satellite includes an onboard beamformer (OBBF), feed array and feeder-link antenna. The OBBF is configured to produce first and second spot beams for respective ones of the first and second geographic regions. The feed array is configured to receive first and second signals in respective ones of the first and second spot beams for respective geographic regions. At least portions of the first and second signals carry respective ones of the communication and the interference. The feeder-link antenna, then, is configured to transmit the first signals and second signals to the ground base station that is configured to suppress any of the interference from at least the portion of the first signals carrying the communication.
摘要:
A method of thinning a phased antenna array including defining a performance characteristic for the phased antenna array, partitioning the phased antenna array to define a plurality of sectors that each include an equal number of radiating element locations, wherein each radiating element location is either an active radiating element location or an inactive radiating element location. The method also includes determining a number of active radiating element locations to be included in a first sector of the plurality of sectors, and determining, based on the number of active radiating element locations, at least one arrangement of active and inactive radiating element locations in the first sector configured to achieve the performance characteristic. The method further includes applying the at least one arrangement to each remaining sector of the plurality of sectors such that the phased antenna array has rotational symmetry.