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It is very important to reduce the energy consumption of low-density parity-check (LDPC) decoders, especially for the intelligent and mobile terminals in green communications. This paper presents a novel energy-efficient layered decoder (EELD) to save the power consumption of quasi-cyclic LDPC (QC-LDPC) decoders based on the layered belief propagation (LBP) algorithm. The EELD forces a check-node...
Parallel micro-manipulators adopt flexible joints and the flexible deformation makes the up-platform move. Considering the counter-force/moment of the flexible joints, we concern the statics of a 6-PSS parallel micro-manipulator with perpendicular structures(PMMWPS), the construction of a relationship model between force output of PZT actuators and outer load on the up-platform, and the definition...
Modern industries, e.g., semiconductor packaging, imposes increasing stringent requirement on equipment with very high acceleration and high precision. Traditionally, arm linkage and drive mechanism are first designed followed by control design. The integrated design method is proposed as a preferable technique of the traditional one. In this paper, a general framework of the integrated design method...
Space-time Adaptive Processing (STAP) is usually applied to adaptive anti-jam system of Global Positioning System (GPS). It is the most effective way to reject the broadband interference. But STAP often dose matrix compute, which has a huge computational complexity. Paper investigates a recursive algorithm-Frost Least-Mean-Square (FLMS) algorithm. FLMS can reduce the workload of array signal processing...
Frequency modulated continuous wave (FMCW) is often employed in practical HF radar ocean surface remote sensing systems. The first- and second-order monostatic cross sections of the ocean surface in the context of high frequency ground wave radar operation are derived for a dipole source with an FMCW waveform. The Fourier coefficients of the rough ocean surface are described as zero-mean Gaussian...
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