The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
By comparing the liquid crystal azimuths of Mura area and OK area, it is concluded that there are differences between azimuths of Mura area and OK area when they are compared with the azimuths of theoretical, but the differences between azimuths of Mura area and azimuths of theoretical are larger. It is proved that the differences can be reduced by directional adjustment of TFT/CF exposure energy...
For the problems of interaction ship between various disciplines and difficultiness of global optimization, the multidisciplinary design optimization theory was introduced to the design of torpedo guidance system. Combined with multidisciplinary design optimization theory, the disciplinary decomposition of torpedo guidance system, design contents of each discipline and the interdisciplinary coupling...
Phase center variation of GPS receiving antenna is a significant error component in high precise survey GPS applications, thus an antenna phase center calibration procedure is needed. Antenna phase center anechoic chamber calibration method is researched. Mean phase center offset and elevation dependent phase center variations are estimated by means of least-squares estimation based on measured phase...
A characteristic of a north-finder applied in our project is that in experiments, its azimuth-keeping accuracy and the initial azimuth of the body on which the north-finder is fixed has a relation of the period function whose period is 180 degree. To find what causes this characteristic, the paper firstly introduces the principle of the dynamically tuned gyro based north-finder, then derives the differential...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.