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The equivalent circuits modeling method is developed for the EMP(Electromagnetic pulse) generators of the equipment-level immunity test. On the double-exponential function of EMP waveform, the corresponding circuit structure is introduced, and the calculation method is given to obtain the circuit RLC parameters. For the generators of EFT(Electrical Fast Transient/Burst), surge combination wave, and...
This paper presents an open-loop 28GHz 16-phase clock generator in 28nm CMOS technology. The open loop architecture is composed of 22.5° delay units and uses phase compensation to account for delay time variations. The 16-phase 28GHz clock generator consumes 14mW, leading to a power efficiency of 0.032mW/GHz/phase. The maximum phase error is 6° and the RMS phase error is 3° when the input frequency...
A serial-input serial-output encoder based on pipelined rotate-left-accumulator (RLA) circuits is designed for multi-rate Quasi-Cyclic Low-Density Parity-Check (QC-LDPC) codes of Chinese digital terrestrial/television multimedia broadcasting (DTMB) standard. The RLA circuit can make the area usage economical, and the pipelined architecture can simplify the memory structure. The encoder is implemented...
Maintenance is one of the important research subjects of the electric power system. In order to realize cooperative maintenance decision, the system framework of multi-knowledge, multi-method, multi-resource, multi-information based on swarm intelligence is constructed, the method of knowledge modeling is studied. Swarm intelligence is a quality that many individuals can behave intelligently through...
Steganography, as one of alternative techniques for secure communications, has drawn more and more attentions. This paper presents a covert communication model based on least significant bits (LSB) steganography in Voice over IP (VoIP). The model aims at providing nice security of secret messages and real-time performance that is vital for VoIP. Therefore, we employ a simple encryption of secret messages...
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