2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)最新文献_第2页

Stationary and moving targets detection on FMCW radar using GNU radio-based software defined radio 基于GNU无线电的软件无线电在FMCW雷达上的静止和运动目标检测

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432817

Siska Aulia, A. B. Suksmono, A. Munir

引用次数: 21

Interactive color scheme method for visually handicapped people considering design property 考虑设计特性的视障人士交互配色方案方法

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432742

Keiko Yamashita, K. Arakawa

{"title":"Interactive color scheme method for visually handicapped people considering design property","authors":"Keiko Yamashita, K. Arakawa","doi":"10.1109/ISPACS.2015.7432742","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432742","url":null,"abstract":"A method of graphical color scheme is proposed for people with visual handicap, such as color blindness or low vision by aging, considering design property. This method first sets the contrast of luminance between adjacent regions to be large in order to make the image understandable only by the luminance, and then assign fine color combination in order to make the image satisfactory to people with normal sight. In designing the color, samples of well-known fine color combinations are adopted. Here, the user can select his/her favorite color and reflect it to the design by adopting color combinations containing the color. In applying the color combination, the color information of each color in the combination is assigned to the region in the image considering the luminance and the area of the region, so that the user's taste to colors can be reflected adequately. Both the luminance and the color information are set at preferable values by interactive evolutionary computing (IEC) which can design the system considering the user's subjective criteria. Computer simulations verify the high performance of this system.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"326 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122258517","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

An effectiveness of ACO approach in design of CSD coefficient FIR filters 蚁群算法在CSD系数FIR滤波器设计中的有效性

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432839

Tomohiro Sasahara, K. Suyama

引用次数: 2

Channel compensation based on VPS and time-frequency interferometry for massive MIMO-OFDM 基于VPS和时频干涉的大规模MIMO-OFDM信道补偿

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432829

Masaya Okamura, C. Ahn, T. Omori, K. Hashimoto

{"title":"Channel compensation based on VPS and time-frequency interferometry for massive MIMO-OFDM","authors":"Masaya Okamura, C. Ahn, T. Omori, K. Hashimoto","doi":"10.1109/ISPACS.2015.7432829","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432829","url":null,"abstract":"Massive MIMO has been recognized as promising ways to provide high speed data transmission. However, since the number of pilot symbol is proportionally depending on the number of transmit antenna, the total transmission rate of massive MIMO would be degraded. To solve this problem, channel estimation by virtual pilot signal (VPS) with a few pilot signals has been proposed. However, since the conventional method iteratively identifies the channel state information (CSI), the complexity is considerable work. Then again, time-frequency interferometry (TFI)-OFDM has been proposed. This method can achieve a good BER performance with a few pilot symbols. In this paper, we propose a novel channel compensation based on VPS and TFI for massive MIMO without increasing the system complexity. The proposed scheme has a low complexity, with improving BER performance to compared with the conventional method using linear interpolation and FFT/IFFT after specific operations. From the simulation results, the proposed scheme can improve BER performance to compared with the conventional method in 4 × 4 and 8 × 8MIMO systems.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121593852","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: 0

A low-complexity joint angle-of-arrival and channel estimation for single-input-multiple-output OFDM systems 一种单输入多输出OFDM系统的低复杂度联合到达角和信道估计

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432823

Chih-Yu Chen, Wen-Rong Wu, Chi-Shiang Gau

引用次数: 2

Development of MTF measurement algorithm for CT images with high noise by a radial edge method 基于径向边缘法的高噪声CT图像MTF测量算法研究

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432809

K. Sawa, Yoshinori Takehana, Jo Mitsuzuka, A. Tanaka, K. Kinoshita, S. Kishida

引用次数: 1

Artificial dielectric material for lowering resonant frequency of microstrip circular patch antenna 降低微带圆形贴片天线谐振频率的人工介电材料

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432834

Aditya Gianto Hadiwijaya, A. Munir

引用次数: 14

Moving object detection in HEVC video by frame sub-sampling 基于帧子采样的HEVC视频运动目标检测

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432735

Masaya Moriyama, Kazuki Minemura, Koksheik Wong

{"title":"Moving object detection in HEVC video by frame sub-sampling","authors":"Masaya Moriyama, Kazuki Minemura, Koksheik Wong","doi":"10.1109/ISPACS.2015.7432735","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432735","url":null,"abstract":"Video compression aims to remove spatial-temporal redundancies where the encoded bitstream, particularly the motion vectors, may not represent the actual motions in the video. Hence, moving object detection in the compressed video stream is a technically challenging task. In this work, we propose a novel moving object detection algorithm using frame sub-sampling method in the state-of-the-art HEVC video coding standard. Specifically, the number of frames is reduced by means of (temporal) sub-sampling. The frames are re-encoded using HEVC with the same environmental setting to amplify the motion of the moving objects. Sub-sampling effectively increases the motion intensity of the objects, which can be the significant cue for detecting moving object while motions in the background still remain small. Motion vectors and INTRA coding units of moving object obtained via frame sub-sampling and re-encoding are selectively utilized to separate the background and moving objects in the video. The segmented results are refined and compared with the result without performing frame sub-sampling. Results show that the sub-sampling method achieves higher accuracy, with an improvement greater than 0.35 in terms of F-measure.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133732121","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: 8

Intelligent signal processing routine for instantaneous heart rate detection using a Six-Port microwave interferometer 智能信号处理程序瞬时心率检测使用六端口微波干涉仪

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432820

Christoph Will, Kilin Shi, F. Lurz, R. Weigel, A. Koelpin

引用次数: 10

A novel algorithm of tail biting convolutional code decoder for low cost hardware implementation 一种新颖的咬尾卷积码解码器的低成本硬件实现算法

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS) Pub Date : 2015-11-01 DOI: 10.1109/ISPACS.2015.7432773

Ahmad Zaky Ramdani, T. Adiono

{"title":"A novel algorithm of tail biting convolutional code decoder for low cost hardware implementation","authors":"Ahmad Zaky Ramdani, T. Adiono","doi":"10.1109/ISPACS.2015.7432773","DOIUrl":"https://doi.org/10.1109/ISPACS.2015.7432773","url":null,"abstract":"Tail-biting convolutional codes (TBCC) have been applied in many recent modern communication standards such as LTE and WIMAX. TBCC is a method applied in conventional convolutional code by replacing a fixed zero-tail with tail-biting data constrains to achieve a better coding efficiency. This modification makes the decoding process becomes much more complex. Due to impracticality of the optimum decoding algorithm such as brute force, recently some suboptimum algorithms have been developed but it still leaves a large amount of computation due to the iterative nature wherein the number of iterations depends on the received codeword causes inefficient system for implementation, especially for real time applications. In this paper we offer a new algorithm that is specific to low cost hardware implementation. Low cost criteria are addressed to minimum amount of computation for each decoding process. In addition to causing smaller area consumption, the lack of computing process will also make decoding processing time becomes faster. This algorithm that we call reverse trellis algorithm also offers a fixed amount of computation regardless to the received codeword, thus will not require extra memory consumption as it being on an implementation. Taking a case study on TBCC configuration for LTE, proposed algorithm requires 5712 adding operations and 3008 inverting operations. A significant decrease compared to 286736, adding 143360 inverting for Brute Force and 45079976738816 adding 1099511627776 inverting for all possible fixed tail ML decoder. In the performance of BER, reverse trellis algorithm is able to deliver improved by more than 1 dB compared to direct terminating ML decoder.","PeriodicalId":238787,"journal":{"name":"2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114664882","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: 6