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Robust Audio Blind Watermarking Algorithm Based on Haar Transform

Journal of Harbin Institute of technology(New Series) 2013年第3期20卷 104-108页

作者： Bao-Yuan Chen Yi-Qiang Zhu Lei-Lei Tian Ying-Ying Li Ya-Qiong Lan The Higher Educational Key Laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang Province Harbin University of Science and Technology

To solve the problem of low capacity of audio watermarking information and poor robustness of impact resistance,a digital audio watermark algorithm based on wavelet transform is presented in this paper. In this algorithm,the fine and approximate components are obtained when the Haar wavelet base is used to convert each frame of the audio signal to its discrete transform. Then the HAS algorithm is applied to the fine component embedded with watermark to realize encryption process. The original audio carrier signal is not needed in extraction,as long as the signal is embedded after the frame is divided. The first two sections of each frame are implemented in Haar transform respectively to get the fine and approximate component. The watermark images are obtained from the former two fine components of the energy watermark sequence after calculating,comparing and extracting. The simulation results show that there is a certain transparency for the algorithm,a good robustness against the resampling and low pass filtering attack.

关键词： wavelet transform digital watermarking blind extraction

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A method to restrain the charging effect on an insulating substrate in high energy electron beam lithography

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Journal of Semiconductors 2014年第12期35卷 144-149页

作者：于明岩赵士瑞景玉鹏施云波陈宝钦 The Higher Educational Key Laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang Province Harbin University of Scienceand Technology Key Laboratory of Microelectronics Devices & Integrated Technology Institute of Microelectronics Chinese Academy of Sciences

Pattern distortions caused by the charging effect should be reduced while using the electron beam lithography process on an insulating substrate. We have developed a novel process by using the SX AR-PC 5000/90.1solution as a spin-coated conductive layer, to help to fabricate nanoscale patterns of poly-methyl-methacrylate polymer resist on glass for phased array device application. This method can restrain the influence of the charging effect on the insulating substrate effectively. Experimental results show that the novel process can solve the problems of the distortion of resist patterns and electron beam main field stitching error, thus ensuring the accuracy of the stitching and overlay of the electron beam lithography system. The main characteristic of the novel process is that it is compatible to the multi-layer semiconductor process inside a clean room, and is a green process, quite simple, fast, and low cost. It can also provide a broad scope in the device development on insulating the substrate,such as high density biochips, flexible electronics and liquid crystal display screens.

关键词： charging effect pattern distortions electron beam lithography

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Processing Method of Marine Radar Image Based on Wavelet Transform

Processing Method of Marine Radar Image Based on Wavelet Tra...

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2013 IEEE 11th International Conference on Electronic Measurement & Instruments

作者： Dong Jingwei Wei Xiaowei Li Huile Li Juyan School of Measurement and Control Technology and Communications Engineering The Higher Educational Key Laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang Province Harbin

ISBN: (纸本)9781479907571

Marine radar image often has a lot of noise signal, the noise ratio of the radar image is very low. So a method based on a combination of wavelet transform, K-distributed sea clutter threshold segmentation and most of the interpolation repair method is presented in this paper, which can deal with the same frequency noise of marine radar image. This paper comes up with use wavelet transform to determine potential radar image noise level, then by adopting the method of threshold segmentation technique for marine radar information on the potential position detection of same frequency noise, to repair most of the interpolation method is used to deal with noise in the radar image. Finally, the marine radar image is gotten after de-noising. Through the comparative analysis of the signal to noise ratio, it is proved that this method can get better de-noising effect.

关键词： marine radar images, wavelet transform, threshold segmentation, majority of the interpolation method, same frequency noise

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Joint power allocation and relay selection algorithm for multiple-antenna terminals in cooperative MIMO systems

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International Journal of Performability Engineering 2019年第6期15卷 1570-1579页

作者： Han, Yuhui Sun, Jiyu Higher Educational Key Laboratory for Measuring and Control Technology Instrumentations of Heilongjiang Harbin150080 China School of Measurement and Control Technology and Communications Engineering Harbin University of Science and Technology Harbin150080 China

The relay selection and power allocation of cooperative MIMO with multiple-antenna terminals are investigated. Based on the classic worst-link-first algorithm, we propose a joint power allocation and relay selection algorithm, which takes maximizing the system energy gain as the optimization purpose. We consider quasi-static, flat fading channels, select relays, and allocate power according to the instantaneous channel state information. Theoretical analysis and computer simulations show that the proposed algorithm can achieve higher average network energy gain than the traditional worst-link-first algorithm, and its computational complexity is much lower. © 2019 Totem Publisher, Inc. All rights reserved.

关键词： MIMO systems

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Online cutting temperature measurement system based thermocouple

International Journal of Control and Automation

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International Journal of control and Automation 2014年第10期7卷 355-364页

作者： Zhengyu, Wang Xiaoyang, Yu Guanghui, Li Guangyu, Tan The higher educational key laboratory for Measuring and Control Technology Instrumentations of Heilongjiang Province Harbin University of Science and Technology Harbin China College of Engineering Guangdong Ocean University Zhanjiang China

In order to measure cutter temperature, the on-line thermocouple temperature measurement system was proposed. In this system, temperature sensing element thermocouple was welded in the flank face close to the cutting edge with double bare wires welding way. With this method, this system has advantages of a single point temperature measurement and no effect on cutter temperature distribution. For a higher sampling rate, two AD were used to sample alternately;and for the convenient signal transmission when the cutter is rotating at high speed, wireless transmission was adopted to transmit thermocouple output signal and cold side temperature signal to the host computer. After temperature compensation to the cold side, the compensated temperature will be real-time displayed, stored and played back. System measurement range is 0 ~ 1300 ° C, and the measurement uncertainty is 0.58%. For 8000rpm rotational speed of XH714D machine, experimental results show that the system can measure cutter temperature online, and has advantages of low cost and great practicability.

关键词： Thermocouples

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Synthesis of low-cost Fe/C catalysts from cold-rolled sludge for efficient phenol degradation via peroxodisulfate activation

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Journal of Water Process Engineering 2025年 74卷

作者： Tang, Yan Zhong, Guanghong Li, Xitong Gao, Xiaoya Zhu, Wenjie Luo, Yongming Faculty of Environmental Science and Engineering Kunming University of Science and Technology Kunming 650500 China Faculty of Chemical Engineering Kunming University of Science and Technology Kunming 650093 China Key Laboratory of Yunnan Province for Synthesizing Sulfur-containing Fine Chemicals The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province Kunming 650500 China School of Energy and Environment Science Yunnan Normal University Kunming 650500 China

Developing cost-effective and efficient catalysts remains a significant challenge in the treatment of phenolic wastewater. In this study, Fe/C catalysts were synthesized through a pretreatment-pyrolysis method using ammonia solution and cold-rolled sludge as raw materials. Among the catalysts tested, the N₅FC-600 exhibited superior performance. Experimental results showed that the N₅FC-600/PDS system achieved complete phenol removal within 30 min, with a total organic carbon (TOC) removal efficiency of 80.7 %. Furthermore, the N₅FC-600 catalyst significantly reduced ferric ion leaching by 65 % compared to the FC-600 catalyst. The effects of various operational parameters—including temperature, pH, catalyst dosage, and the presence of inorganic ions—on phenol degradation were systematically evaluated. The oxidation of phenol primarily occurred on the surface of the catalyst or within its boundary layer. Notably, the N₅FC-600 catalyst created an acidic microenvironment, which extended its effective pH range. Mechanistic insights obtained from free radical quenching experiments and electron paramagnetic resonance (EPR) analyses indicated that the N₅FC-600/PDS/phenol system operates through both radical (•OH, O₂^•− and SO₄^•−) and non-radical (¹O₂ and electron transfer) pathways. Further degradation pathways were elucidated using liquid chromatography-mass spectrometry (LC-MS). These findings underscore the dual-pathway mechanism of the N₅FC-600 catalyst and highlight its potential for effective and versatile environmental applications. © 2025 Elsevier Ltd

关键词： Cold-rolled sludge Fe/C catalyst Low-cost Peroxodisulfate Phenol

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Research on temperature points selection of the non-source temperature calibration method based on pyrometer transfer function

International Journal of Control and Automation

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International Journal of control and Automation 2014年第11期7卷 155-162页

作者： Kun, Sun Jing, Wang Hongchao, Wang Limei, Yu Chenyang, Li Xiaowen, Zhang The Higher Educational Key Lab. for Measuring and Control Tech. Instrumentations of Heilongjiang Province Harbin University of Science and Technology Harbin China

The non-source temperature calibration method of the multi-spectral pyrometer (MSP), put forward in the previous article, is the non-source calibration method based on the MSP transfer function (NCCTF). In this paper, the practicability of NCCTF is researched. The situations that maybe encountered of the temperature points in the actual calibration process are simulated. The impact of the intervals temperature points of different number and unequal intervals temperature points on the NCCTF accuracy are researched theoretically to determine the temperature points select method. Simulation experimental results show that the NCCTF can meet the actual calibration process with good usability.

关键词： Transfer functions

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Roundness evaluation method based on least squares

Roundness evaluation method based on least squares

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International Conference on Electronic Engineering and Information Science, ICEEIS 2015

作者： Yu, S.C. Wang, J.L. Tian, L. Pan, Z.W. The Higher Educational Key Laboratory for Measuring and Control Technology and Instrumentations of Heilongjiang Province Harbin University of Science and Technology China

ISBN: (纸本)9781138027725

Roundness evaluation is an important means of judging the accuracy of roundness testing results, which has important significance for roundness testing quality. From the aspects of precision and algorithm complexity, the least squares fitting method is taken to fit the discrete edge point. The least square circle method is used in roundness evaluation of rods, and simulation and practical experiment are also carried out to test the proposed method. The experimental results show that the evaluation method based on the least squares can obtain a reasonable roundness evaluation. © 2015 Taylor & Francis Group, London.

关键词： Quality control

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Measurement of Escherichia coli Biomass Concentration in Milk Based on Two-dimensional Dynamic Ultraviolet-Visible Spectrum 8

Measurement of Escherichia coli Biomass Concentration in Mil...

引用

8th Symposium on Novel Photoelectronic Detection technology and Applications

作者： Zhou, Zhen Ci, Yunsong Yang, Shiyu Zhang, Siqi Zhang, Haoze Higher Educational Key Laboratory for Measuring and Control Technology and Instrumentations Harbin University of Science and Technology Harbin150080 China

ISBN: (数字)9781510653122

ISBN: (纸本)9781510653115

Escherichia coli (E. coli) is a common source of contamination in dairy products and other beverages. In this paper, Ultraviolet-visible (UV-Vis) spectroscopy is applied to measurement of E. coli biomass concentration in milk due to its fast and non-contact advantages. Standard Normal Variable (SNV) combined with Multivariate Scattering Correction method (MSC) was used to processes the obtained Ultraviolet-visible spectrum to improve the feature intensity and reduce noise. Two-dimensional correlation analysis is used to capture the absorption characteristics of E. coli after red shift. The characteristic band of E. coli extracted from the two-dimensional correlation analysis was used as the initial data, combined with the Extreme Learning Machine network to establish a prediction model, and compared with the result of the plate counting method. It proves that the method in this paper is reasonable and effective. The results show that the accurate prediction model is coefficient of determination (R2) = 0.92741, mean squared error (mse) = 0.051274. Compared with the traditional method, the time in the analysis process is greatly shortened, from 10 min to 1 min, which means that the new method is more in line with the requirements of online measurement of dairy companies. © 2022 SPIE

关键词： Escherichia coli

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An implicit calibration method for image distortion

An implicit calibration method for image distortion

引用

International Conference on Electronic Engineering and Information Science, ICEEIS 2015

作者： Yu, S.C. Wang, P.J. Liu, S. Xiao, H.Y. The higher educational key laboratory for Measuring and Control Technology and Instrumentations of Heilongjiang Province Harbin University of Science and Technology China

ISBN: (纸本)9781138027725

Image distortion correction is a difficulty in the field of computer vision. The accurate distortion correction model is a fifth-order polynomial that it consists of the radial distortion coefficient (k1, k2) and tangential distortion coefficient (p1 p2), and it is difficult in obtaining its iterative solution. Therefore, we put forward a kind of implicit image distortion method, it is called eight parameters. We can use the correction factor λn (1≤ n ≤ 8) with no any the radial distortion coefficientplace of radial distortion coefficient (k1, k2) and tangential distortion coefficient ((p1 p2), and build an implicit distortion correction model, then we use the least square method to realize the image distortion correction. The experimental results show that this method is not only simple, but also accurate. © 2015 Taylor & Francis Group, London.

关键词： Computer vision

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