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A computer control system is proposed which is based on hardware-in-loop (HWIL) simulation test system. As an important sub-system in simulation test system, the reality is the focus of the simulation system. The construction of the computer control system for laser warning based on HLA Distributed Simulation. By combining the outer clock and time stamp for data frame, data interaction is triggered...
An equivalent optimized sub-pipelined architecture is proposed to implement the AES, every round including encryption and decryption needs one clock cycle. The SubBytes/InvSubBytes operation using composite field arithmetic in GF(24) and BlockRAMs respectively. In addition, an efficient key expansion which supports the output of 128 bits key per cycle and allows key changes every cycle is also presented...
As one of the most popular many-core architecture, GPUs have illustrated power in many non-graphic applications. Traditional general purpose computing systems tend to integrate GPU as the co-processor to accelerate parallel computing tasks. Meanwhile, GPUs also result in high power consumption, which accounts for a large proportion of the total system power consumption. In this paper, we mainly focus...
The current vehicle dynamic stability control system is mostly concentrated on yaw stability and can not provide the adequate roll stability for vehicles with elevated center of gravity (CG). During critical steering, the variant vertical force of tire due to the roll motion may not only cause rollover accidents, but also affects yaw stability. This paper focuses on integrated control for vehicle...
Time synchronization is critical in distributed network system. A variety of network protocols, middleware and business applications rely on proper time synchronization across the computational infrastructure and depend on the clock accuracy. The “Network Time Protocol” (NTP) is the current widely accepted standard for synchronizing clocks over the Internet. In order to reduce access frequency to...
In order to further enhance the bandwidth of the data communication system in theodolite, a single channel serial optical transmission system was designed based on the studying of the 10BASE-X Gigabit Ethernet physical layer technology which meets the IEEE standard. The conversion between the 64-bit 156.25MHz TTL signals and the 4 channel 3.125Gbps PCML differential signals is carried out by FPGA;...
Antenna look angles of geostationary communications satellite provide the information required to ensure that control station antenna is directed towards the satellite; more specifically to ensure that the main lobe of the antenna is aligned with the main lobe of the satellite's antenna, and to ensure that the largest amount of energy is captured from the satellite. To optimize the performance of...
This paper presents an approach to reduce the power consumption of FPGA based digital circuits at FSM design level. The approach is based on clock gating technique. By using control signals at FSM level, we have limited the clock switching and other signals transitions in the system, leading to reduced dynamic power consumption of the systems. Our results have shown up to 7% reduction in dynamic power...
During the transmission of date based on Date-Centric Publish-Subscribe mechanism, propagation delay could lead to subscriber's data loss is a problem. Proposed to implement the system clock with a network master clock within the time synchronization, Strategy combined with time stamp to find as time delay caused loss of data subscribers, using the topic data as the keyword for cache management, response...
As the requirements of improvement on the data transmission speed and distance, we proposed the transmission mode based on LVDS bus. We use LVDS devices which are DS92LV1023 and DS92LV1224, and choose drive devices CLC001 and CLC006 matched by adaptive equalizer CLC014. The transmission cable adopt combination of coaxial and fiber cable, and the system terminal using USB interface to communicate with...
Cancer is one of the most critical medical emergencies, and prevention of tumor cell multiplication has always been a great challenge. Present day technology to cure cancer such as chemotherapy using Gamma Rays and Laser Endoscopy have several risks involved in them. These techniques have high probability of destroying the healthy tissue cells while treating the tumor cells. Nanotechnology, the promising...
The communication principle of CAN (Controller Area Network) bus is introduced in detail. P87C591 is used as the microprocessor with CAN controller. The hardware and software of the high-speed and low-speed CAN bus networks are designed, in this paper, full active suspension control, engine control, airbag control, ASR/ABS/ESP control, traction control and transmission control are designed as high-speed...
In this paper, the Electro-optical Countermeasure Hardware-in-the-loop simulation system is introduced, which highlight to problem: real-time control and acquisition of communications data. We discuss the real-time mechanism by the combination of HLA time management mechanism for real-time data communication and out clock, and the double buffer of the acquisition method which ensures high frequency...
Quasi-cyclic low density parity check (LDPC) codes and rotation LDPC codes are investigated in this paper, based on which, a new class of well-structured LDPC codes are proposed. Additionally, for ease of coding, a dual-diagonal structure is applied to the parity-check matrices of those codes, which ensure that parity-check bits can be recursively calculated with linear computational complexity. With...
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