Abstract: A satellite and/or dead-reckoning navigation integrated positioning device with improved accuracy including position, velocity, etc. is disclosed. A tracking processing module performs, based on a GPS signal, acquisition and tracking thereof and demodulation of a navigation message. A GPS calculation module calculates position, velocity, and the like based on pseudo-range and Doppler frequency observations, and ephemeris data and gives the calculations to output judgment and tracking processing modules. Based on external support information including inertial sensor output, map information or information about differences between map position and measured position, along with the pseudo-range and Doppler observations, an integrated positioning calculation module estimates position, velocity, and the like, and gives the estimates to the output judgment module.

Abstract: A satellite and/or dead-reckoning navigation integrated positioning device with improved accuracy including position, velocity, etc. is disclosed. A tracking processing module performs, based on a GPS signal, acquisition and tracking thereof and demodulation of a navigation message. A GPS calculation module calculates position, velocity, and the like based on pseudo-range and Doppler frequency observations, and ephemeris data and gives the calculations to output judgment and tracking processing modules. Based on external support information including inertial sensor output, map information or information about differences between map position and measured position , along with the pseudo-range and Doppler observations, an integrated positioning calculation module estimates position, velocity, and the like, and gives the estimates to the output judgment module.

Abstract: Disclosed is a satellite navigation/dead-reckoning navigation integrated positioning device with improved accuracy of navigation data including position, velocity, and the like, which can be constituted at low cost. A tracking processing module (31) performs, based on a GPS positioning signal, acquisition processing and tracking processing thereof and demodulation processing of a navigation message. A GPS positioning calculation module (32) calculates position, velocity, and the like based on a pseudo-range observation, a Doppler frequency observation, and ephemeris data and gives the calculated position, velocity, and the like to an output judgment module (43) and the tracking processing module (31).

Abstract: Satellite positioning apparatus for mobile units 10 comprises a positioning unit 11 for calculating the current position of a mobile unit based on position information contained in signals from satellites received via a GPS antenna 17, state detecting units 12, 14 for outputting state detection signals corresponding to the traveling state of the mobile unit, and a calculating unit 11 for calculating the reckoned position of the mobile unit based on the state detection signal output from the state detecting unit and current position reckoning signal.

Abstract: The noise eliminating circuit for a television receiver according to the present invention outputs an image signal without any noise by detecting and eliminating impulse noise and effecting interpolation for an image signal, in the case where C/N of a received signal is lowered and impulse noise is produced. The noise eliminating circuit stated above is a noise detecting circuit, which detects only the noise component and judges whether the C/N is such that impulse noise is produced or not, depending on the level of the detection output. In the case where it is judged that there exists an impulse noise, a noise reduction circuit detects an impulse noise portion in the image signal and a brightness signal and a chrominance signal of this portion are subjected to interpolation processing so that an image signal, from which the impulse noise component is removed.