59results about How to "Avoid strong interference" patented technology

The invention discloses an SAR image channel extraction method which combines gray-level threshold-value segmentation and contour shape identification. The method includes step1: adopting gray-level threshold-value segmentation to carry out a first background segmentation on an SAR image; step2: according to channel contour shape characteristics, carrying out sectioned modeling on channel areas, wherein the channel areas are represented as combination of a plurality of minimum external-connection rectangular windows; step3: combining minimum external-connection rectangular windows in the same area so as to form a plurality of second rectangular windows; step4: according to the shape and connectivity of a channel contour, splicing second rectangular windows which satisfy a condition into a rough channel area; and step5: carrying out gray-level threshold-value segmentation again so as to obtain a channel extraction image. The SAR image channel extraction method which combines gray-level threshold-value segmentation and contour shape identification inhibits background noises, which are approximate to both a water-body gray level and a shape characteristic in the SAR image, through combination of an image gray-level characteristic and a shape contour characteristic of the channel and a multi-mode SAR image segmentation decision so that channel areas are extracted precisely and accurately.

The invention relates to an incoherent imaging glass thickness measuring method and belongs to the technical field of photoelectrical detection. The incoherent imaging glass thickness measuring method is characterized in that an incoherent point light source or a line light source is adopted as a lighting source, if the incoherent line light source is adopted, the length direction of the line light source is required to be parallel to the surface of a detected glass board, light emitted by the lighting source passes through a converging lens and a real image is imaged above the upper surface of the detected glass board or below the lower surface of the detected glass board. An imaging lens carries out imaging of two virtual images or two real images, wherein the two virtual images or the two real images are formed as the upper surface and the lower surface of the detected glass board reflect light of the incoherent point light source or the line light source. Two imaged real image faculae are located on a light sensing face of a line array imaging device or a face array imaging device and the thickness of the detected glass board can be obtained by calculating the distance between the two faculae. The incoherent imaging glass thickness measuring method has the advantages that influences of scattered faculae are avoided, measuring stability is improved, the probability of missing of the faculae due to angle changes of the glass board relative to a measuring system in movement is reduced, and influences on measurement by local flaws of the surface of the glass are avoided.

The invention relates to the field of communications and discloses a method, device and system for adjusting an uplink power of a micro base station. The method comprises the following steps: when a macro base station causes interference on an uplink signal of the micro base station, an operational maintenance server or the micro base station acquires an uplink control power capable of resisting interference through calculation on the basis of an uplink interlayer power balance principle and in the term of an uplink target power of the macro base station, and adjusts the local uplink power of the micro base station according to the uplink control power. Therefore, when the macro base station causes the interference on the uplink signal of the micro base station, the uplink power of the micro base station can be properly adjusted, therefore, the strong interference caused by the macro base station is effectively overcome, and the signal quality of the macro base station is kept. The invention simultaneously discloses the operational maintenance server, the micro base station and a corresponding communication system.