2011 International Conference on Communications and Signal Processing最新文献_第9页

Maximum likelihood pitch estimation using sinusoidal modeling 最大似然基音估计使用正弦建模

2011 International Conference on Communications and Signal Processing Pub Date : 2011-03-24 DOI: 10.1109/ICCSP.2011.5739326

V. Mahadevan, C. Espy-Wilson

引用次数: 10

A variable step size Square Contour Algorithm based on a novel non-linear function of error signal 一种基于误差信号非线性函数的变步长方形轮廓算法

2011 International Conference on Communications and Signal Processing Pub Date : 2011-03-24 DOI: 10.1109/ICCSP.2011.5739332

R. Mitra, Tarun Choubisa

引用次数: 3

A new transform for signal representation utilizing DCT symmetries 利用DCT对称性的一种新的信号表示变换

2011 International Conference on Communications and Signal Processing Pub Date : 2011-03-24 DOI: 10.1109/ICCSP.2011.5739386

R. Roy, R. Gopikakumari

引用次数: 2

Modified CPW fed monopole antenna with a radiation pattern suitable for mobile handset 一种适用于手机的改进CPW馈电单极天线

2011 International Conference on Communications and Signal Processing Pub Date : 2011-03-24 DOI: 10.1109/ICCSP.2011.5739340

D. Laila, R. Sujith, S. M. Nair, C. Aanandan, K. Vasudevan, P. Mohanan

引用次数: 4

A novel multistage classification and Wavelet based kernel generation for handwritten Marathi compound character recognition 一种基于多阶段分类和小波核生成的手写马拉地语复合字识别方法

2011 International Conference on Communications and Signal Processing Pub Date : 2011-03-24 DOI: 10.1109/ICCSP.2011.5739299

S. Shelke, S. Apte

{"title":"A novel multistage classification and Wavelet based kernel generation for handwritten Marathi compound character recognition","authors":"S. Shelke, S. Apte","doi":"10.1109/ICCSP.2011.5739299","DOIUrl":"https://doi.org/10.1109/ICCSP.2011.5739299","url":null,"abstract":"This paper presents a novel approach for recognition of unconstrained handwritten Marathi compound characters. The recognition is carried out using multistage feature extraction and classification scheme. The initial stages of feature extraction are based upon the structural features and the classification of the characters is done according to their parameters. The final stage of feature extraction employs generation of kernels using Wavelet transform. A single level Wavelet decomposition is used to generate the approximation coefficients. These coefficients are stored as kernels for matching. A modified wavelet based kernel generation method is also implemented. The recognition is done by template matching in both the cases. The results are analyzed using both the kernel generation techniques for varying resize factors. The recognition rate achieved from the proposed method is 95.89% and 96.00% for 16×16 and 32×32 resize factors respectively with wavelet based kernels and 96.41% and 97.94% for 16×16 and 32×32 resize factors respectively with modified wavelet based kernels.","PeriodicalId":408736,"journal":{"name":"2011 International Conference on Communications and Signal Processing","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123777129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

Design and FPGA implementation of modified Distributive Arithmetic based DWT-IDWT processor for image compression 基于改进分配算法的图像压缩DWT-IDWT处理器的设计与FPGA实现

2011 International Conference on Communications and Signal Processing Pub Date : 2011-03-24 DOI: 10.1109/ICCSP.2011.5739397

M. Nagabushanam, P. Cyril Prasanna Raj, S. Ramachandran

引用次数: 23

Hardware implementation of Max-Log-MAP algorithm based on MacLaurin series for turbo decoder 基于MacLaurin系列的turbo解码器Max-Log-MAP算法的硬件实现

2011 International Conference on Communications and Signal Processing Pub Date : 2011-03-24 DOI: 10.1109/ICCSP.2011.5739373

R. Shrestha, R. Paily

{"title":"Hardware implementation of Max-Log-MAP algorithm based on MacLaurin series for turbo decoder","authors":"R. Shrestha, R. Paily","doi":"10.1109/ICCSP.2011.5739373","DOIUrl":"https://doi.org/10.1109/ICCSP.2011.5739373","url":null,"abstract":"After the initial interest caused by appearance of turbo-codes in 1993, special attention to the hardware implementation has led to many different modified algorithms for MAP decoders. The original MAP algorithm suffers from serious drawbacks in its hardware implementation. To overcome this disadvantage, Max-Log-MAP and Log-MAP algorithms have been proposed to reduce the complexity. Recently an improved Max-Log-MAP algorithm is proposed by Shahram et. al. based on MacLaurin series to further reduce the complexity. However there are no hardware implementation reported on this particular Max-Log-MAP algorithm based on MacLaurin series. In this paper, we have proposed hardware architecture for modified Max- Log-MAP algorithm using MacLaurin series. In addition, the performance of proposed architecture is improved by replacing all the multipliers with shifters and adders. This implementation is very useful for high data rate communication applications as the performance of this decoder in lossy ISI channel is very good. Finally the performance of proposed architecture is compared with hardware implementation of Max-Log-MAP SISO decoder.","PeriodicalId":408736,"journal":{"name":"2011 International Conference on Communications and Signal Processing","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115636647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Heart-beat detection and ranging through a wall using ultra wide band radar 利用超宽带雷达探测心跳并穿透墙壁进行测距

2011 International Conference on Communications and Signal Processing Pub Date : 2011-03-24 DOI: 10.1109/ICCSP.2011.5739391

S. Shirodkar, P. Barua, D. Anuradha, R. Kuloor

引用次数: 17

Downlink blind channel estimation for W-CDMA systems and performance analysis under various fading channel conditions W-CDMA系统的下行盲信道估计及各种衰落信道条件下的性能分析

2011 International Conference on Communications and Signal Processing Pub Date : 2011-03-24 DOI: 10.1109/ICCSP.2011.5739363

M. Sangeetha, V. Bhaskar

{"title":"Downlink blind channel estimation for W-CDMA systems and performance analysis under various fading channel conditions","authors":"M. Sangeetha, V. Bhaskar","doi":"10.1109/ICCSP.2011.5739363","DOIUrl":"https://doi.org/10.1109/ICCSP.2011.5739363","url":null,"abstract":"Wideband code division multiple access (W-CDMA) is a third generation (3G) mobile wireless technology that promises much higher data speeds for mobile and portable wireless devices than those which are commonly offered in today's market. In W-CDMA systems, while transmitting information over multipath channels, both intersymbol interference (ISI) as a result of interchip interference (ICI) and multiple access interference (MAI) cannot be easily eliminated. Although it is possible to design multiuser detectors that suppress MAI and ISI, these detectors often require explicit knowledge of at least the desired users' signature waveform. Torlak and Xu proposed a blind estimation algorithm for Asynchronous CDMA (A-CDMA) systems to estimate the multiple users' symbols [8]. In our work, we study a similar blind channel estimation scheme for downlink W-CDMA systems that provide estimates of the subchannels of multiple users by exploiting the structural information of the data output. In particular, we show that the subspace of the (data+noise) matrix contains sufficient information for unique determination of channels, and hence, the signature waveforms and signal constellation. Performance measures like bit error rate and root mean square error are plotted for various channel fading conditions.","PeriodicalId":408736,"journal":{"name":"2011 International Conference on Communications and Signal Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129821287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Adaptive local thresholding for detection of nuclei in diversity stained cytology images 自适应局部阈值法检测多样性染色细胞学图像中的细胞核

2011 International Conference on Communications and Signal Processing Pub Date : 2011-03-24 DOI: 10.1109/ICCSP.2011.5739305

Neerad Phansalkar, Sumit More, Ashish Sabale, Madhuri Joshi

引用次数: 256