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Among the most powerful and applied mathematical tools, subspace has had a wide impact in signal processing and communications, and it continuously has a magic power for solving future problems. In this talk, I will present some of the triumphant examples of subspace that I have encountered in the past 25 years. These examples range from high-resolution processing of radar signals to blind system...
The development of ICT technologies to advance smart living products and creative humanity services becomes future global consensus and industrial trends in the world. The user-driven innovations, which bring products and services naturally and smartly close to human needs, should heavily adopt many interactive multimedia technologies. The interactions through the detection of human nature touch,...
On behalf of the ISPACS 2010 Organizing Committee, it is our great pleasure to welcome all participants for attending this symposium. The 2010 symposium is held in Wangjiang Hotel, Chengdu China. We are proud of hosting this symposium.
It is our pleasure to welcome you to the 18th International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2010), the natural sceneries city of Chengdu.
With the rapid development of Web 2.0 and cloud computing concept and applications, there are many unprecedented web-based multimedia applications are emerging today and they pose many new challenges in multimedia research. In this talk, I first summarize the common features of the new wave of multimedia applications which I call Media 2.0. I use 6 D's to describe Media 2.0 principles, namely, Democratized...
In this paper, a compact flexible band pass filter (BPF) based on substrate integrated circular cavities (SICC) is proposed. SICC works on TM modes and has advantages of high quality factor and good design flexibility. Filters are made from cylindrical cavities integrated into a planar substrate and are fed by microstrip lines through coupling slots. First-order and third-order filter are presented...
The performance of a photovoltaic device composed of poly(N-vinylcarbazole) with Covalently Bonded C60 (PVK- C60) exhibits a significant improvement compared with its corresponding simple poly(N-vinylcarbazole) and C60 blend under the same condition. The open circuit voltage (Voc) is increased from 0.25V for their blend to more than 1V for PVK-C60 copolymer. In PVK-C60 copolymer, the carbazole block...
This paper demonstrated the feasibility of a 220-GHz wireless link communication system. The main components have been developed by our team. Using the characteristics of the components, we certificated a gigabit-class wireless system at terahertz. The system worked in ASK mode, the transmission data reaches 20Gbit/s, and the transmission distance is 100m. This wireless system will attract a great...
In this paper, a broadband orthomode transducer has been designed based on the Bøifot junction. The device is divided into individual parts, and each part is full-wave simulated by using CST simulator for improving the designing efficiency. After the design of individual parts of the orthomode transducer, the entire structure is designed. The results show that the relative bandwidth of the orthomode...
As a typical passive jamming, chaff cloud have a strong moderating effect on various radar systems. It's also one of typical interference to synthetic aperture radar (SAR). In order to study the impact of chaff cloud on the SAR, based on mathematical expression of SAR reflection deduce the formulation of single chaff reflection, obtained that there is the incoherent Gaussian white noise interference...
As a new radar system, MIMO radar has become the hotspot in radar research. Because the key point of radar's viability in battlefield is its RF stealth ability. Tough the analysis of radar transmit power and the LFM signal detect technique based on time-frequency analysis, this paper makes a discussion on the discrepancy of the anti-interception performance between MIMO radar and conventional phased...
In this paper, a microstrip linear pressure times Blumlein transmission line and antenna integrated. They become high-power pulsed radiation unit. Microstrip linear Blumlein transmission line output voltage is high. It can directly feed to the slot antenna. In the far-field radiation, we can obtain better results. In theory, far-field peak-to-peak increase by 100%. The simulation results and theory...
Compared to single-input multiple-output (SIMO) radar, airborne multiple-input multiple-output (MIMO) space-time adaptive processing (STAP) radar transmits mutually orthogonal or non-coherent waveforms. The waveform diversity increases degrees of freedom (DOFs) of MIMO STAP radar and results in the variation of clutter characteristics. To make things worse, there exists many non-ideal factors in practical...
In this paper, a piece-wise approximation for doubly selective channel is presented for improving the structure of the frequency-domain channel gain matrix of OFDM. The proposed model is exploited to simplify the zero-forcing (ZF) equalizer, of which the linearized case is studied and applied to the DVB-H receiver design. The simulation indicates that the developed equalizer enforces considerably...
The laser shear speckle technique has a distinct advantage in non-destructive testing (NDT) field. Our main objective of our investigation has been to obtain some knowledge of digital image correlation method (DICM) applicated in speckle shearing phase-shift for damage detection. In many cases it uses laser speckle shearing technique with subtract to gain the fringe pattern, which method processes...
Image encryption is distinct from text encryption. This difference can be attributed to the fact that an image consists of a large amount of data, thereby resulting in low efficiency of real-time image encryption. In this paper, we propose a novel scheme for secure real-time image transmission. A method for image encryption is applied using optical computing technologies which inherently deal with...
Reversible circuits play an important role in quantum computation. The realization of reversible quantum circuits is required for any quantum computer to be universal. This paper1 studies the realization and synthesis problem of reversible circuits. Using group theory, we present two sets of new 3-bit reversible logic gates, which included g1g2g3 and nine complex gates, respectively. It is shown that...
Welding inspection is highly essential presently owing to task monitoring creates of credibility and safety to the company and all users. Welding inspector is required to use much more ability and experiences including complicated technology as complemented assistance to inspect/check the welding trace in both during welding and after that. Therefore, this paper presents a detection of welding trace...
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