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Mihcak et al. proposed a locally adaptive window-based denoising method using maxsimum likelihood (LAWML) with low complexity. However, LAWML was based on decimated wavelet transform (DWT) without taking account of the interscale dependencies. In this paper, we propose a variant of LAWML, namely MPLAWML, based on multiscale products. We improve LAWML by extending DWT to undecimated wavelet transform (UWT) and multiplying the adjacent wavelet subbands to exploit the wavelet interscale dependencies. In the multiscale products, edges are enhanced and noise is weakened. Thereafter, a product threshold is calculated for each product subband and is used on the products coefficients to identify significant features. Then LAWML is applied to process those wavelet coefficients, which are greater than the corresponding products thresholds. Experiments show that the proposed algorithm has more robustness to noise, achieves better visual effects than LAWML and has competitive performance compared with the state-of-the-art wavelet-based denoising algorithms.

A CPW fed ultra wideband (UWB) antenna which is working on the bandwidth 0.2GHz–3GHz with two narrow-band suppression is presented in this paper, and there are some analysis using characteristic mode theory. The antenna is a compact printed monopole antenna, and it produces narrowband suppression through the embedded split-ring resonator and U shape slot in the radiation patch. The simulation results show that, in addition to the specific stop-band frequency, antenna voltage standing wave ratio (VSWR) is less than 2∶1 within the scope of the whole working bandwidth. Therefore, the antenna designed in this paper has good application prospect.

Based on Simplifying the antenna modes through the application of characteristic modes approach, we propose a novel method which synthesize the Gauss filter to design antenna equivalent circuit. We take the dipole antenna as an example to expound the method. Firstly, from the analysis of the characteristic modes approach, mode 1 and mode 3 are found to be the main radiation modes for a dipole antenna. And then, band pass filter equivalent circuits are designed in the light of the modal coefficient graph of each mode. Finally the two band pass filter equivalent circuits of mode 1 and mode 3 can be combined in parallel to be the equivalent circuit of the dipole antenna. The simulation results of the equivalent circuit are quite consistent with the original antenna for the bandwidth and impedance.

This paper use Anhui province in 1978-2012 years time series data, through amendments to the building after Tell index, calculated the Anhui industrial structure optimization index, and use this index and Anhui financial development scale, development efficiency index, empirical analysis of the industrial structure and the relationship between financial development in Anhui. The results show that: in Anhui, the scale of financial development to the optimization of its industrial structure, have long-term and short-term positive effect, and the efficiency of financial development to its industrial structure optimization, but obviously have long-term and short-term negative effect.