In this work, we present two new blind equalization schemes suitable for transmitting cross cross-QAM signals. Based on the framework of constant cross algorithm (CXA), a modified CXA (MCXA) is obtained by adding a co...
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To improve the hot rolled strip quality and operational stability, a novel tensionmeter based on lever principle is developed which inspects latent waves and provides real references for flatness control in hot rollin...
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Based on the directional characteristic of SAD(Sum of Absolute Difference) distribution and the center-biased characteristic of motion vectors, a fast BMA(blockmatching motion estimation algorithm), DLTS(Diamond Line/...
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A method of object localization of rotatable single-camera in visual surveillance is proposed by the method of updating fixed man height model which is an effective method to solve object localization in fixed single-...
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Recently, there are a lot research works for multimedia communication systems. Especially, the space sharing communication is one of research trends for multimedia communication. By using the space sharing technology,...
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Object states estimation and data association are main facets of multi-object tracking. Under complex situations, one object often grouped with others, or occluded by other objects or background, which can increase th...
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It is well known that H.264/AVC has great advantage of coding efficiency compared with the successful prior coding standards and it can save about 50% bit-rate under the same reconstructed picture quality. But the com...
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This paper presents an auxiliary model based stochastic gradient parameter estimation algorithm for multi-input output-error systems by minimizing a quadratic cost function. The basic idea is to replace the unknown va...
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Automatic target recognition (ATR) is increasingly important in a wide range of video and image applications, such as machine vision and security monitoring. In order to reduce the complexity and time lag in unmanned ...
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Automatic target recognition (ATR) is increasingly important in a wide range of video and image applications, such as machine vision and security monitoring. In order to reduce the complexity and time lag in unmanned aircraft vehicle system (UAVS) for signals surveillance, force protection and strike, this paper proposes a novel ripple algorithm for ATR. This algorithm uses concentric circles to extract features of object and the features are quasi invariant to target translations, rotations and scaling. Through outdoor experimentation, it is proven that the ripple algorithm is correct and effective with high-speed in program running time. The recognition rate is more than 90% and the code runs on the order much faster than the implementation based on the traditional algorithms.
Speech transmission are the most used form of communications in the personal communication systems and spectral efficiency is the very important aspect in wireless communication system and so low bit rate speech codec...
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Speech transmission are the most used form of communications in the personal communication systems and spectral efficiency is the very important aspect in wireless communication system and so low bit rate speech codecs play an important role in determining the systempsilas spectral efficiency. The AMR-WB+ (Extended Adaptive Multirate Wide Band) speech codec provides unique performance at very low bit rates from below 10 kbps to 24 kbps. The speech codec has high robustness to withstand high-bit error rates and performs well in tandeming conditions, hence leading to efficient bandwidth utilization and increased channel capacity. In this paper, several optimization techniques are presented for efficient implementation of AMR-WB+ on real time digital signal processor TMS320C6713, with an aim to overcome the limitation of computational burden and also scaling this application for enhanced speed to process more number of channels. The work presented here is the optimization of decoder part of AMR-WB+ speech codec and a step to minimize its MIPS (Millions Instruction per second), which includes debugging profiling and optimization with the help of code composer studio (CCS an IDE for TMS320C6713) and finally the implementation of the decoder on DSP Processor TMS320C6713. These techniques are in general implemented in any DSP processor platform.
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