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.
This paper presents a versatile implementation of a reconfigurable module for acquisition and synthesis of modulated signals that are specific to the modern communication equipments. The hardware structure of the system is elaborated mainly around the TDA 8702 high speed video digital-to-analog converter and ADC 0820 analog-to-digital converter, both connected in a configuration that is controlled...
Even if software handover is a critical process in the lifecycle of a software system, there is still very little research done within its domain. In this paper, we evaluate the taxonomy of handover activities as defined in EM3: Handover Process Model. We do it in an industrial setting in a context where a software system is handed over from a vendor conducting system development, evolution and maintenance...
The advantage of circular correlation based on FFT is getting a large searching range, less time for processing and making the speed of acquisition much faster. The parameters such as the data points, segments and the ratio of sampling all effect the capability of the acquisition in the process of the circular correlation. The key parameters of the process based on FPGA can be designed and optimized...
Acquisition is the key function modules of the baseband system of satellite navigation receiver. In the GNSS receiver for GPS, GLONASS and Beidou, in order to acquire the three navigation signals at different chip rates and frequency, three FFT processors are needed when using the parallel search based on FFT. GNSS receiver can choose best navigation system according to the signal strength of different...
Boot-CDs are a flexible and powerful method to assist in the whole forensic process from live examination to acquisition, searching and recovery. Linux was ever since the most popular OS for this purpose, but in some cases Windows-based live-CDs are also useful. In this workshop we present different real-life case scenarios and the corresponding live-boot-solution. Since kernel 2.6 Linux is able to...
The paper mainly introduces hardware accomplishment of rescue robot motion control system based on PC104 computer and CPLD, and describes in detail the implementation method of the hardware part for multi-motor of robot motion control system. PC104 computer, having advantages such as less space, flexible configuration, and high reliability, is applied as CPU of the robot due to its limited space....
General acquisition algorithms for GPS signals in time domain and frequency domain have some advantages and disadvantages. A new modified averaging circular correlation algorithm based on FFT is proposed and its realization process is given in this paper. Compared with the general algorithms its performance is improved. This novel algorithm is demonstrated using actual sampling data of GPS signals...
It is difficult to realize spread spectrum signal acquisition in time transfer system for a receiver operating in dynamic situation. For a receiver that realized by all-digital model, a new acquisition mode using fast Fourier transform algorithm is presented, which estimates the Doppler shift during the PN phase acquisition. The algorithm presented in the paper solves the problem of signal acquisition...
The authors previously (1987) reported on the structure, design, specifications, and applications of their infrastructure for clinical research in the field of electrocardiographic body surface potential mapping. They summarize the main characteristics of the hardware (acquisition, storage and display) and the software (data processing, display, analysis, and mathematical modelling). The various features...
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.