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.
In order to improve the sensitivity of passive ultrahigh frequency (UHF) radio frequency identification (RFID) tags and increase the operation distance, usually the threshold voltage compensation technology was used to reduce the drop voltage of the charge transfer transistor in the envelope circuit of the demodulator. In this paper, the duty cycle of the signal is calibrated so that it is not affected...
This paper presents a fully integrated reconfigurable all-band RF transceiver for GPS/GLONASS/ Galileo/Beidou in 55-nm CMOS. The transceiver incorporates three low-IF receivers (RXs) and one direct up-conversion BPSK transmitter (TX), which can be configured to receive any two global navigation satellite system (GNSS) signals or switched to process the Chinese Beidou(I) signals. A switching module...
The speed of pedestrian is an important factor in behavior analysis of pedestrian. Speed calculation of pedestrian can be equivalent to the analysis of the motion trails of object. It can be analyzed in two parts. The first part is the coordinate transformation between the world coordinate system and the image coordinate system which is accomplished by “Distance-to-Pixel” mapping table. The second...
This paper presented an algorithm to calibrate the extrinsic parameters between a 2 dimensional laser range finder and a pan-tilt platform. After 3 kind geometrical features are analyzed, the line feature was selected. A calibration board with right-angled triangle outline was designed to improve the calibration precision. Based on the line feature, the constrain equations was established. The experimental...
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.