Pub Date : 1999-07-28DOI: 10.1109/SICE.1999.788593
K. Yunoki, Y. Tanaka, T. Yoshino, H. Hirakawa
A probe microphone has a thin, empty and long probe tube. Therefore, frequency characteristics of a probe microphone are not good. In this paper, we analyze a probe microphone constructed by a probe, a spacer and a regular microphone. In this microphone, the sound wave is attenuated by viscosity of air. So, sound solution is given with the attenuation constant /spl delta/ and the phase constant K. As a result, frequency characteristics of a probe microphone were obtained for the size of the probe tube, /spl delta/ and K. In the experiment, applying a white noise or a rectangular signal to the speaker,sound from the probe microphone was compared with that of the regular microphone. Experimental results agreed well with the theoretical ones.
{"title":"Theoretical study and experiment on frequency characteristics of a probe microphone","authors":"K. Yunoki, Y. Tanaka, T. Yoshino, H. Hirakawa","doi":"10.1109/SICE.1999.788593","DOIUrl":"https://doi.org/10.1109/SICE.1999.788593","url":null,"abstract":"A probe microphone has a thin, empty and long probe tube. Therefore, frequency characteristics of a probe microphone are not good. In this paper, we analyze a probe microphone constructed by a probe, a spacer and a regular microphone. In this microphone, the sound wave is attenuated by viscosity of air. So, sound solution is given with the attenuation constant /spl delta/ and the phase constant K. As a result, frequency characteristics of a probe microphone were obtained for the size of the probe tube, /spl delta/ and K. In the experiment, applying a white noise or a rectangular signal to the speaker,sound from the probe microphone was compared with that of the regular microphone. Experimental results agreed well with the theoretical ones.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114372403","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}
Pub Date : 1999-07-28DOI: 10.1109/SICE.1999.788706
H. Kameda, S. Tsujimichi, Y. Kosuge
This paper proposes a multi-target tracking algorithm using geographically separated radar. The filtering algorithm is discussed in terms of the fundamental issues of tracking performance, tracking success rate and tracking errors as compared with other conventional methodologies. Through several simulations, the validity of this algorithm has been confirmed.
{"title":"Target tracking using geographically separated radar","authors":"H. Kameda, S. Tsujimichi, Y. Kosuge","doi":"10.1109/SICE.1999.788706","DOIUrl":"https://doi.org/10.1109/SICE.1999.788706","url":null,"abstract":"This paper proposes a multi-target tracking algorithm using geographically separated radar. The filtering algorithm is discussed in terms of the fundamental issues of tracking performance, tracking success rate and tracking errors as compared with other conventional methodologies. Through several simulations, the validity of this algorithm has been confirmed.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134143994","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}
Pub Date : 1999-07-28DOI: 10.1109/SICE.1999.788679
T. Makino, H. Yokoi, Y. Kakazu
Describes the development of a motion planning system which plans an optimal work path for an autonomous agricultural vehicle on farm land. The system consists of two parts: a global path planning component and a local motion planning component. The global path planning component works to acquire an optimal work path for a whole field. In this case, the optimal work path is the lowest traveling cost from a start point to a goal point. The local motion planning component acquires the optimal path and plans an optimal control policy on a headland. In this motion planning, an optimal solution is a path with a low traveling cost and soil compaction. These components are implemented with the following algorithms: simulated annealing, Tabu search, genetic algorithm, and reinforcement learning. We solve the optimal path problems on a headland using computer simulation.
{"title":"Development of a motion planning system for an agricultural mobile robot","authors":"T. Makino, H. Yokoi, Y. Kakazu","doi":"10.1109/SICE.1999.788679","DOIUrl":"https://doi.org/10.1109/SICE.1999.788679","url":null,"abstract":"Describes the development of a motion planning system which plans an optimal work path for an autonomous agricultural vehicle on farm land. The system consists of two parts: a global path planning component and a local motion planning component. The global path planning component works to acquire an optimal work path for a whole field. In this case, the optimal work path is the lowest traveling cost from a start point to a goal point. The local motion planning component acquires the optimal path and plans an optimal control policy on a headland. In this motion planning, an optimal solution is a path with a low traveling cost and soil compaction. These components are implemented with the following algorithms: simulated annealing, Tabu search, genetic algorithm, and reinforcement learning. We solve the optimal path problems on a headland using computer simulation.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133095101","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}
Pub Date : 1999-07-28DOI: 10.1109/SICE.1999.788726
M. Arif, Teruo Ishihara, H. Inooka
A method of incorporating experience in iterative learning controllers is proposed. It is proposed that if the previous experience of the controller can be used in the selection of the initial control input for a new desired trajectory tracking task, the convergence of the iterative learning controller can be improved without modifying the structure of the controllers. Therefore the method proposed in the paper is very general and is applicable to most of the iterative learning control algorithms.
{"title":"Using experience to get better convergence in iterative learning control","authors":"M. Arif, Teruo Ishihara, H. Inooka","doi":"10.1109/SICE.1999.788726","DOIUrl":"https://doi.org/10.1109/SICE.1999.788726","url":null,"abstract":"A method of incorporating experience in iterative learning controllers is proposed. It is proposed that if the previous experience of the controller can be used in the selection of the initial control input for a new desired trajectory tracking task, the convergence of the iterative learning controller can be improved without modifying the structure of the controllers. Therefore the method proposed in the paper is very general and is applicable to most of the iterative learning control algorithms.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133743787","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}
Pub Date : 1999-07-28DOI: 10.1109/SICE.1999.788589
B.A. Kwaky
Kalman filtering theory was used to analyse simulated and real water vapor profiles. The simulation of the Raman lidar water vapor profiles was based on the third harmonic of the Nd-YAG laser. The Kalman filter was applied to both single pulse and multipulse water vapor profiles corrupted by Gaussian white noise. The results obtained by the Kalman filter approach were later compared with conventional signal averaging techniques and the smoothing filter technique. In general, the Kalman filter out-performed the conventional filters in both its smoothing and predictive capabilities. The merits and demerits of the Kalman filter when applied for the analysis of atmospheric water vapor profiles are discussed.
{"title":"Kalman filter for the analysis of simulated multipulse Raman lidar water vapor profiles","authors":"B.A. Kwaky","doi":"10.1109/SICE.1999.788589","DOIUrl":"https://doi.org/10.1109/SICE.1999.788589","url":null,"abstract":"Kalman filtering theory was used to analyse simulated and real water vapor profiles. The simulation of the Raman lidar water vapor profiles was based on the third harmonic of the Nd-YAG laser. The Kalman filter was applied to both single pulse and multipulse water vapor profiles corrupted by Gaussian white noise. The results obtained by the Kalman filter approach were later compared with conventional signal averaging techniques and the smoothing filter technique. In general, the Kalman filter out-performed the conventional filters in both its smoothing and predictive capabilities. The merits and demerits of the Kalman filter when applied for the analysis of atmospheric water vapor profiles are discussed.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131455340","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}
Pub Date : 1999-07-28DOI: 10.1109/SICE.1999.788707
Young-Hun Jung, Sun-Mog Hong
We consider the optimal scheduling of detection and tracking parameters in phased array radars to minimize the radar energy required for track maintenance in a cluttered environment. We develop a mathematical model of target detection induced by a search process in phased array radars. We use an analytic approximation of the modified Riccati equation of the PDA filter. Based on the search process and the tracking models, we formulate the optimal scheduling problem into a nonlinear optimal control problem. We solve the constrained nonlinear optimization problem to obtain a solution of the optimal control problem.
{"title":"Optimal scheduling of detection and tracking parameters for a phased array radar","authors":"Young-Hun Jung, Sun-Mog Hong","doi":"10.1109/SICE.1999.788707","DOIUrl":"https://doi.org/10.1109/SICE.1999.788707","url":null,"abstract":"We consider the optimal scheduling of detection and tracking parameters in phased array radars to minimize the radar energy required for track maintenance in a cluttered environment. We develop a mathematical model of target detection induced by a search process in phased array radars. We use an analytic approximation of the modified Riccati equation of the PDA filter. Based on the search process and the tracking models, we formulate the optimal scheduling problem into a nonlinear optimal control problem. We solve the constrained nonlinear optimization problem to obtain a solution of the optimal control problem.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"169 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114461839","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}
Pub Date : 1999-07-28DOI: 10.1109/SICE.1999.788704
Xi-lin Yang, Lijuan Jia, Changyou Yu, Z. Yan
An image processing system in laser shape-meter for hot-rolling strip steel is introduced. During production, a grey's variation of image background caused by the strip's temperature fluctuation has an adverse effect on the steady shape measurement online. For this reason, a method to seek an adaptive threshold for image segmentation is presented. According to the adaptive principle, with the help of the online analysis on histogram of the regional images, the adaptive threshold is obtained.
{"title":"The adaptive threshold for image segmentation in shape metering of hot-rolling strip steel","authors":"Xi-lin Yang, Lijuan Jia, Changyou Yu, Z. Yan","doi":"10.1109/SICE.1999.788704","DOIUrl":"https://doi.org/10.1109/SICE.1999.788704","url":null,"abstract":"An image processing system in laser shape-meter for hot-rolling strip steel is introduced. During production, a grey's variation of image background caused by the strip's temperature fluctuation has an adverse effect on the steady shape measurement online. For this reason, a method to seek an adaptive threshold for image segmentation is presented. According to the adaptive principle, with the help of the online analysis on histogram of the regional images, the adaptive threshold is obtained.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121173545","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}
Pub Date : 1999-07-28DOI: 10.1109/SICE.1999.788673
Jong Hae Kim, Sang Kyung Lee, H. Park
This paper describes the synthesis of robust and non-fragile H/sup /spl infin// state feedback controllers for linear systems with time delay and parameter uncertainties, and static state feedback controller with multiplicative uncertainty. The sufficient condition of controller existence, the design method of robust and non-fragile H/sup /spl infin// state feedback controller, and the measure of non-fragility in controller are presented. Also, using some changes of variables and Schur complements, the obtained sufficient condition can be rewritten as an linear matrix inequality form in terms of transformed variables. Therefore, the obtained robust and non-fragile H/sup /spl infin// controller guarantees the asymptotic stability and disturbance attenuation of the closed loop system in spite of controller gain variations within a degree.
{"title":"Robust and non-fragile H/sub /spl infin// control of parameter uncertainties time-varying delay systems","authors":"Jong Hae Kim, Sang Kyung Lee, H. Park","doi":"10.1109/SICE.1999.788673","DOIUrl":"https://doi.org/10.1109/SICE.1999.788673","url":null,"abstract":"This paper describes the synthesis of robust and non-fragile H/sup /spl infin// state feedback controllers for linear systems with time delay and parameter uncertainties, and static state feedback controller with multiplicative uncertainty. The sufficient condition of controller existence, the design method of robust and non-fragile H/sup /spl infin// state feedback controller, and the measure of non-fragility in controller are presented. Also, using some changes of variables and Schur complements, the obtained sufficient condition can be rewritten as an linear matrix inequality form in terms of transformed variables. Therefore, the obtained robust and non-fragile H/sup /spl infin// controller guarantees the asymptotic stability and disturbance attenuation of the closed loop system in spite of controller gain variations within a degree.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"42 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122852342","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}
Pub Date : 1999-07-28DOI: 10.1109/SICE.1999.788699
S. Lee, B. Nam
ECG signals are often used in detecting human heart rate and heart diseases. ECG signals may sometimes have time-varying biases and noises caused by the unpredictable sudden movements. In this paper, we propose an algorithm to adaptively measure the peak values of infant's heart rate, using wavelet transform and radial basis functions.
{"title":"Peak detection of ECG signal using wavelet transform and radial basis functions","authors":"S. Lee, B. Nam","doi":"10.1109/SICE.1999.788699","DOIUrl":"https://doi.org/10.1109/SICE.1999.788699","url":null,"abstract":"ECG signals are often used in detecting human heart rate and heart diseases. ECG signals may sometimes have time-varying biases and noises caused by the unpredictable sudden movements. In this paper, we propose an algorithm to adaptively measure the peak values of infant's heart rate, using wavelet transform and radial basis functions.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129375479","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}
Pub Date : 1999-07-28DOI: 10.1109/SICE.1999.788678
D. Iijima, Wenwei Yu, H. Yokoi, Y. Kakazu
This paper describes a distributed autonomous swimming robot which can acquire environment oriented behaviour through learning. We demonstrate the approach by implementing the robot on the water surface where the environment is similar to an unstable and uncertain real world. Since the robot control is difficult, and it takes many repetitions before the target behaviour can be acquired. We introduce oscillation action patterns suitable for providing the motion through water for fast learning. As a result, the robot can acquire the active target-approaching behaviour using only the local learning, and the behaviour is almost the same as that in the centralized control.
{"title":"Autonomous acquisition of environmental oriented behaviour for a distributed autonomous swimming robot","authors":"D. Iijima, Wenwei Yu, H. Yokoi, Y. Kakazu","doi":"10.1109/SICE.1999.788678","DOIUrl":"https://doi.org/10.1109/SICE.1999.788678","url":null,"abstract":"This paper describes a distributed autonomous swimming robot which can acquire environment oriented behaviour through learning. We demonstrate the approach by implementing the robot on the water surface where the environment is similar to an unstable and uncertain real world. Since the robot control is difficult, and it takes many repetitions before the target behaviour can be acquired. We introduce oscillation action patterns suitable for providing the motion through water for fast learning. As a result, the robot can acquire the active target-approaching behaviour using only the local learning, and the behaviour is almost the same as that in the centralized control.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126484675","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}
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