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By the full use of the reconfigurability of SOPC, this paper constructed the hardware system of communication gateway, designed the logic of custom HDLC processor and SLIP processor. The application software systems are developed, which implemented efficiently the functions of communications gateway protocol parsing and conversion, data packet distribution and packaging etc.
This paper addresses the problem of peak to average power ratio (PAPR) reduction in multi-band transmitters by PTS approaches. In the conventional PTS approaches, the computational complexity is high and need to transmit side information, which is hard for hardware implementation. Aiming at the problems, a PTS algorithm which using gray code to reduce the complexity is proposed. The MATLAB simulation...
A smart sensor based on fiber optic gyroscope (FOG) is presented, which can measure rotation velocity and realize feedback control at the same time. The detection scheme of the smart sensor is developed with digital signal processor (DSP) and field programmable gate array (FPGA). In the smart sensor, both of the interference signal demodulation and feedback control algorithm are processed in a single...
The thesis designed an SOPC system with network interface. With the basis that LWIP was ported onto the SOPC system, a file format was developed for directly reconstructing the system. The hardware and software system of the SOPC system was upgraded and refreshed through TCP/IP. The thesis implemented the online reconstructable SOPC system based on TCP/IP.
On the basis of mounting LCD, VGA and PS/2 mouse to the Avalon bus, the paper ports μC/GUI to the LCD in the system based on Nios II. It also creatively ports Mu-C/GUI to the VGA display, and implements feature of supporting PS/2 mouse. These effectively solve the problem of human-machine interface in Nios II system.
In the modern electrical system and digital television technology, such as communication message, image processing, video and audio frequency signal processing systems, there are often real-time and flexible requirements for meet the demand for the two aspects in the same time. Along with the development of PLD device and EDA technology, the advantages in the performance, cost, flexibility and power...
Head milled rice online detection implements dynamical image sampling and analysis, and then generates decision signals in the process of rice falling. Thereby, an efficient detection algorithm is very important for the fast falling rice selection. Since the traditional diameter classical search algorithm causes much loss of time and resources, we propose a center-edge rotation search algorithm whose...
Evolvable hardware(EHW) has been proposed as a promising technology for adaptive systems in last few years. However, in practical applications, evolutionary algorithms(EAs) often need numerous generations to search a new solution. In general, a mistaken system is damaged if it cannot restore in time, so the inefficiency problem has become an obstacle of developing adaptive and evolvable hardware....
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