80 research outputs found
Pengolahan sinyal digital dengan pemrograman Matlab
No full textBib. hal. 263-264x, 266 hlm. : il. ; 26 cm
Joint Smoothed l0-Norm DOA Estimation Algorithm for Multiple Measurement Vectors in MIMO Radar
No full textDirection-of-arrival (DOA) estimation is usually confronted with a multiple measurement vector (MMV) case. In this paper, a novel fast sparse DOA estimation algorithm, named the joint smoothed l 0 -norm algorithm, is proposed for multiple measurement vectors in multiple-input multiple-output (MIMO) radar. To eliminate the white or colored Gaussian noises, the new method first obtains a low-complexity high-order cumulants based data matrix. Then, the proposed algorithm designs a joint smoothed function tailored for the MMV case, based on which joint smoothed l 0 -norm sparse representation framework is constructed. Finally, for the MMV-based joint smoothed function, the corresponding gradient-based sparse signal reconstruction is designed, thus the DOA estimation can be achieved. The proposed method is a fast sparse representation algorithm, which can solve the MMV problem and perform well for both white and colored Gaussian noises. The proposed joint algorithm is about two orders of magnitude faster than the l 1 -norm minimization based methods, such as l 1 -SVD (singular value decomposition), RV (real-valued) l 1 -SVD and RV l 1 -SRACV (sparse representation array covariance vectors), and achieves better DOA estimation performance
PAPR reduction using Huffman coding combined with clipping and filtering for OFDM transmitter
No full textDifferentially fed compact dual-band implantable antenna for biotelemetry
No full text© 2016 IEEE. A novel differentially fed dual-band planar antenna operating at the medical implant communication service (MICS) band (402-405 MHz) and the industrial, scientific and medical (ISM) bands (2400-2480 MHz) is presented. The measured 10-dB differential reflection coefficient bandwidth is 389-419 MHz (7.4%) at the lower band and 2395-2563 MHz (6.6%) at the upper band, respectively. The volume of the implantable antenna is only 642.62 mm3 (22mm×23mm×1.27mm)
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