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In this paper, we explore different techniques for lossless compression of sensor data on a wireless sensor network. In this work, we applied modify Differential Pulse Code Modulation (DPCM) scheme for our baseline lossless compression. These techniques were applied on sensor types with reasonably predictable data pattern (e.g., temperature sensor, pressure sensor, etc.) allowing about 50% data compression...
Different industrial applications essentially require a reliable communication without data loss for smooth functioning and better control performance. Controller Area Network (CAN) bus based Distributed embedded systems can provide better communication solution to satisfy this requirement. In addition to this, also provides safety for critical applications, inter-operability between systems, data...
Many-core processors provide the raw computation power required by modern high-performance multimedia and signal processing workloads. The translation of this into execution performance is often constrained by the overheads of communication between concurrent tasks. This paper presents Pronto, a low overhead message passing system which simplifies the semantics of data movement between communicating...
Infrared imaging detectors require highly temperature sensitive sensors placed in a focal plane array. Due to the nature of these sensors, they can not simply be biased continuously, as this causes unwanted self heating that distorts the desired measurement. This is typically overcome by the use of pulse based biasing systems to reduce the time during which a sensor can measure incoming radiation,...
Breaking with the traditional modular architecture in which compression and cryptography are carried out separately, we propose an analysis-by-synthesis approach that exploits the properties of source codes to ensure a prescribed level of protection with manageable computational complexity. To illustrate the power of this methodology, we show that carefully inducing catastrophic errors in Huffman...
The article introduced the structure and technology method of the auto test system based on PXI bus, for the core equipment of the aircraft telemetry system, requiring high work reliability. The article detailed the key technology about PCM decoding, data recording and real-time display. The validation of the final technology index was realized by computer making real time analysis and post analysis...
In this paper, an ultra-high-speed, differential current-steering mode 10-bit D/A converter is presented. The converter consists of 8-channel time division multiplexer, 5-31 ??thermometer?? decoder, fast current conversion switch, constant current source array, and other units, is processed in 0.35 ??m SiGe BiCMOS standard process technology, and has a data fresh rate of up to 1 GSPS. First, the circuit...
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