摘要:
To provide a synthetic aperture radar for achieving a compact polarimetric SAR easily by using a general-purpose phased array antenna for vertical and horizontal polarizations. An antenna section is a phased array antenna for vertical and horizontal polarizations capable of switching to the vertical or horizontal polarizations in transmission at every transmission/reception module, and receiving two of the horizontal and vertical polarizations simultaneously. The control system divides electrically the phased array antenna in the elevation direction in transmission to set one of them for horizontal polarization transmission and the other for vertical polarization transmission, and sets the antenna for dual polarization simultaneous reception to receive the horizontal and vertical polarizations. The SAR processor takes complex data of horizontal and vertical polarization receiving data as a target vector, and obtains a calculation result corresponding to a covariance matrix of a target vector in full polarimetry so as to perform polarimetric SAR processing.
摘要:
An eye movement measuring apparatus comprises: an image forming part configured to obtain data optically to form a fundus oculi image of an eye based on the obtained data; and an image analysis part configured to analyze the formed fundus oculi image to determine eye movement of the eye.
摘要:
A fundus oculi observation device capable of defining which part in the result of analysis of the layer thickness of a fundus oculi is a part obtained by analyzing a vascular region is provided. A fundus oculi observation device 1 forms a plurality of tomographic images G1-Gm of a fundus oculi Ef. A layer thickness distribution calculator 231 calculates layer thickness distribution of the fundus oculi Ef in a cross section of a tomographic image G based on the tomographic images G1-Gm. A vascular region specifying part 234 specifies a vascular region in the tomographic image G. A controller 210 controls a display 240A to display layer thickness distribution information representing the layer thickness distribution and to also display vascular position information representing the position of the vascular region on the layer thickness distribution information.
摘要:
An optical image measuring device which can form a highly reliable image even if an object moves during scanning of a signal light is provided. An optical image forming device 1 comprises: an interferometer that splits a low coherence light L0 into a signal light LS and a reference light LR and generates an interference light LC by overlaying the signal light LS reflected by a fundus oculi with the reference light LR reflected by a reference mirror 14; a CCD 34 which receives the interference light LC and outputs a detection signal; Galvanometer mirrors 22 and 23 to scan the signal light LS in a main scanning direction and a sub-scanning direction; and a computer 40 forming tomographic images G1 to Gm along the main scanning direction at different positions of the sub-scanning direction. The Galvanometer mirrors 22 and 23 scan the signal light LS in a given direction crossing the main scanning direction, and the computer 40 forms a tomographic image for correction GR along the given direction to correct displacement of each topographic image Gi based on the tomographic image for correction GR.
摘要:
To provide a synthetic aperture radar for achieving a compact polarimetric SAR easily by using a general-purpose phased array antenna for vertical and horizontal polarizations. An antenna section is a phased array antenna for vertical and horizontal polarizations capable of switching to the vertical or horizontal polarizations in transmission at every transmission/reception module, and receiving two of the horizontal and vertical polarizations simultaneously. The control system divides electrically the phased array antenna in the elevation direction in transmission to set one of them for horizontal polarization transmission and the other for vertical polarization transmission, and sets the antenna for dual polarization simultaneous reception to receive the horizontal and vertical polarizations. The SAR processor takes complex data of horizontal and vertical polarization receiving data as a target vector, and obtains a calculation result corresponding to a covariance matrix of a target vector in full polarimetry so as to perform polarimetric SAR processing.
摘要:
A peak hold circuit is provided that operates stably even if a peak voltage to be held of a motor-drive-current detection voltage is minute. The peak hold circuit (14) includes: a level shift circuit (50) shifting the motor-drive-current detection voltage by a given voltage; a differential amplifier circuit (60) receiving an output voltage of the level shift circuit (50) and a voltage at an output terminal (OUT) to amplify and output a difference between the voltages; an output transistor (81) receiving at its base an output voltage of the differential amplifier circuit (60) and outputting from its emitter charging current; a capacitor (82) charged with the charging current to hold the voltage at the output terminal (OUT); a bias element (84) generating a voltage substantially equal to the given voltage of the level shift circuit (50); and a resistance element (83) provided between the bias element (84) and the output terminal (OUT) for controlling discharging current of the capacitor (82).
摘要:
The present invention suppresses the generation of deterioration of degree of vacuum attributed to a chemical reaction between an insulation film and an adhesive agent for adhering a sealing frame. An insulation film formed between first electrodes and first electrode lead terminals and second electrodes and second electrode lead terminals on a back panel is formed except for a sealing region where the back panel and a face panel are sealed. In a second electrode lead terminal side of the sealing region, only an adhesive-agent layer which adheres the back panel and the sealing frame and the second electrode lead terminals are present between a sealing frame and a back substrate.
摘要:
The present invention comprising an active filter having a first gm amplifier, a second gm amplifier equivalent to the first gm amplifier, a band gap power source which applies a constant voltage making use of a band gap voltage to an input of the second gm amplifier and a current-voltage conversion circuit which converts an output current of the second gm amplifier into a voltage, wherein operation currents of the first and second gm amplifiers are controlled depending on the output voltage of the current-voltage conversion circuit.
摘要:
Disclosed is a steel alloy that includes as alloying ingredients carbon, silicon, manganese, aluminum, and oxygen. In accordance with this embodiment of the disclosed invention, carbon is present in an amount ranging from 0.40 to 0.77 wt. %; silicon is present in an amount ranging from 0.40 to 1.20 wt. %; manganese is present in an amount ranging from 0.40 to 1.20 wt. %, aluminum is present in an amount ranging from 0.003 to 0.060 wt. %; and oxygen is present in an amount ranging up to 0.0030 wt. %. Also disclosed is a railway wheel that comprises a hub, a rim, and a connecting plate. In accordance with this embodiment of the disclosed invention, at least the rim, and preferably the entire railway wheel, is composed of the disclosed steel composition.
摘要:
Disclosed is a steel alloy that includes as alloying ingredients carbon, silicon, manganese, aluminum, and oxygen. In accordance with this embodiment of the disclosed invention, carbon is present in an amount ranging from 0.40 to 0.77 wt. %; silicon is present in an amount ranging from 0.40 to 1.20 wt. %; manganese is present in an amount ranging from 0.40 to 1.20 wt. %, aluminum is present in an amount ranging from 0.003 to 0.060 wt. %; and oxygen is present in an amount ranging up to 0.0030 wt. %. Also disclosed is a railway wheel that comprises a hub, a rim, and a connecting plate. In accordance with this embodiment of the disclosed invention, at least the rim, and preferably the entire railway wheel, is composed of the disclosed steel composition.