本 期 摘 要

一種新的質量圖引導的相位展開算法

作者：姜文印

單位：西南交通大學現代物理研究所，四川成都 610000

摘要：相位展開主要用于車輪探傷時提取車輪外形信息，不同算法展開后相位的質量也是不同的。介紹了傳統的質量圖引導的相位展開算法，針對該算法在處理問題的不足，對其進行改進，得到了一種新的質量圖引導的相位展開算法。該算法將像素點二階差分值的倒數定義為質量點，通過將相鄰像素點進行平均，得到全新的質量值，引導相位展開。通過比較枝切法、質量圖導向法、最小二乘法以及本文的改進算法四種相位展開算法的仿真實驗，結果表明該算法展開誤差小，計算速度快，能夠有效處理相位展開中不連續的問題。最后通過車輪實驗驗證了結果。

關鍵詞：質量圖導向法；質量圖；相位展開；質量值；可靠度

中圖分類號：O438.2 文獻標識碼：A

文章編號：1006-883X(2018)07-0007-07

收稿日期：2018-05-10

A New Phase Unwrapping Algorithm Based on Quality Map Guidance

JIANG Wen-yin

Institute for Modern Physics, Southwest Jiaotong University, Chengdu 610000,China

Abstract: Phase unwrapping algorithm is mainly used to extract the profile information of wheels in flaw detection. The quality values of phases are also different for different algorithms. The traditional quality-map-guided phase unwrapping algorithm is introduced firstly in this paper. A new quality-mapguided phase unwrapping algorithm is proposed aiming at the shortages of the traditional. This algorithm defines the reciprocal of the second order difference value of pixel point as the quality point. By averaging the quality values of adjacent pixel points, a new quality value is obtained to guide the phase unwrapping. The simulation results of four phase unwrapping algorithms-Branch-cut method, quality map guidance, least squares method, improved algorithm presented in this paper are compared and show that the improved algorithm has smaller error and faster calculating speed, and can deal with the problem of discontinuity in phase unwrapping effectively. Finally, the practical wheel experiments are completed and also verify the conclusion.

Key words: quality map guidance; quality map; phase unwrapping; quality value; reliability

Ag摻雜WO3納米材料的光電催化性能研究

注：福建省自然科學基金面上項目（NO. 2017J01770）；

省級大學生創新創業訓練計劃專項（NO. 201710395032）

作者：楊靜雅，阮彩娟，韓妙玲，帥文軍，余華梁

單位：閩江學院物理學與電子信息工程系，福建閩江 350100

摘要：以鎢酸銨、硝酸銀為原料制備了Ag摻雜WO3納米材料，對材料進行X射線衍射（XRD）、掃描電子顯微鏡（SEM）表征，并在不同外加電壓下測試材料光催化降解羅丹明B的性能。實驗結果表明，適當的外加電場加快了Ag摻雜WO3納米材料光催化降解羅丹明B的速率。

關鍵詞：Ag摻雜WO3納米材料；光電催化；羅丹明B

中圖分類號：O64 文獻標識碼：A

文章編號：1006-883X(2018)07-0015-04

收稿日期：2018-04-27

Study on Photoelectric Catalytic Performance of Ag-doped WO3Nano Materials

YANG Jing-ya, RUAN Cai-juan, HAN Miao-ling, SHUAI Wen-jun, YU Hualiang

Department of physics and electronic information engineering, Minjiang University, Minjiang 350100, China

Abstract: Ag-doped WO3nano materials are prepared with ammonium tungstate and silver nitrate as raw materials. X-ray diffraction (XRD) and scanning electron microscope (SEM) are used to characterize the materials. The photocatalytic degradation of Rhodamine B is tested under different applied voltage. The experimental results show that the appropriate applied electric field accelerates the degradation of Rhodamine B by Ag-doped nano-WO3photocatalysis.

Key words: Ag-doped nano-WO3; photoelectron-catalysis; Rhodamine B

高精度轉臺的分析與設計

作者：蘇芬平1，崔偉2

單位：1.北京航天科頤技術有限公司，北京 100091；

2.中國航天科工集團第二研究院206所，北京 100854

摘要：設計了一種高精度轉臺，選用力矩電機直接驅動負載，既消除了齒隙回差又縮短了傳動鏈，使機械結構簡單緊湊，使控制系統具有反應速度快、線性度好，共振頻率高等優點，提高了系統的穩定性及靜態、動態控制精度。高精度轉盤軸承和力矩電機配合使用，提高了轉臺的承載能力，并使轉臺結構簡化。采用電磁制動器和齒輪副進行方位軸和俯仰軸的制動，起到斷電制動作用。對轉臺的限位、自鎖、報警等安全性和防護性能進行詳細設計介紹。并通過有限元分析驗證主要零部件的結構強度及計算諧振頻率。

關鍵詞：轉臺；高精度；力矩電機；轉盤軸承

中圖分類號：TH115;TH12 文獻標識碼：A

文章編號：1006-883X(2018)07-0019-06

收稿日期：2018-06-06

Analysis and Design of a High Precision Two-dimensional Turntable

SU Fen-ping1, CUI Wei2

1. Beijing Keyi Aerospace Technology Co.,Ltd, Beijing 100091, China; 2.China Aerospace Science and Industry Corporation Ltd. Second Research Institute 206, Beijing 100854, China

Abstract: A high precision turntable is designed in this paper. The torque motor is used to drive the load directly, which eliminates the backlash and shortens the transmission chain. So the mechanical structure is simple and compact, the control system has many merits such as quick response, good linearity and high resonance frequency and is improved in stability and static/dynamic control precision. High precision turntable bearing and torque motor are used together to improve the bearing capacity and simplify the structure of the turntable. The electromagnetic brake and the gears are used together for braking the azimuth shaft and pitch shaft, which has the function of power-off braking. The safety and protection performance of limit control, self-lock, alarm and so on are introduced in detail. The structural strength and the resonance frequency of the main components are verified with Finite element analysis.

Key words: turntable; high precision; torque motor; turntable bearing

變異系數相似度在緊急群決策中的應用

作者：馮長敏

單位：北京信息科技大學 理學院，北京 100192

摘要：考慮應急決策問題，基于Jaccard 、Dice和余弦相似度，提出了一種新的相似度定義——變異系數相似度。介紹了四種相似度的特點，然后將變異系數相似性應用于應急群決策問題。通過每一個方案和目標方案的相似度，可以得出所有方案的一個排序，然后找出最優方案。最后，

舉例評價中國湖南省重大冰雪災害急救管理能力。作為比較，也給出了不同的相似性度量的決策結果。從結果看出，新方法具有更好的相似性識別，適用于緊急群決策應用。

關鍵詞：相似性；應急決策；變異系數；多準則群決策

中圖分類號：O231.1 文獻標識碼：A

文章編號：1006-883X(2018)07-0026-05

收稿日期：2018-05-21

Application of Variation Coefficient Similarity in Emergency Group Decision Making

FENG Chang-min

School of Applied Science, Beijing Information Science and Technology University, Beijing 100192, China

Abstract: Considering the problem of emergency group decision making, a new similarity-variation coefficient similarity is defined based on Jaccard, Dice and cosine similarity. The features of four kinds of similarity are introduced,and then the variation coefficient similarity is applied to the emergency group decision making. According to the similarity of each scheme, a ranking of all the schemes can be obtained, and then the optimal scheme can be found.Finally, an example is given to evaluate the emergency management ability of major snow and ice disasters in Hunan province of China. As a comparison, the decision results of different similarity measures are given. It is shown that the similarity defined in this paper is better in recognition and applicable.

Key words: similarity; emergency decision making; variation coefficient; multicriteria group decision-making

一種偵察打擊一體化無人機地面站軟件的設計與實現

作者：劉晨

單位：中國電子科技集團公司第二十七研究所，河南鄭州 450047

摘要：近年來，無人機憑借設計靈活，成本低，零傷亡的特點，在多次戰爭中都起到了重要的作用。偵察打擊一體化無人機既能偵察，又具有打擊毀傷能力，引起了各方的廣泛關注。本研究針對偵察打擊一體化無人機的特點，設計了一套無人機地面站軟件系統。文章從需求分析入手引出了軟件設計，分別從系統框架、模塊設計和系統工作流程進行了闡述，最后介紹了軟件的關鍵技術實現方法和應用實例。

關鍵字：無人機；地面站；多線程

中圖分類號：TP391.9 文獻標識碼：A

文章編號：1006-883X(2018)07-0031-07

收稿日期：2018-07-05

Design and Implementation of the Ground Station Software System for Reconnaissance-attack-integrated UAVs

LIU Chen

The 27th Research Institute, China Electronics Technology Group Corporation,Zhengzhou 450047, China

Abstract: In recent years, Unmanned Aerial Vehicles (UAVs) have played important roles in many wars due to flexible design, low cost and zero casualty.Not only reconnaissance, reconnaissance and attack integrated UAVs also have the ability of combat damage, so have attracted wide attention from all parties.Based on the characteristics of reconnaissance and attack-integrated UAVs,a software system for the UAV ground stations is designed in this paper. The software design is introduced from the requirement analysis, and the system framework, module design and system work flow are expounded respectively.Finally, the key technology implementation methods and application examples of the software are introduced.

Key words: Unmanned Aerial Vehicle (UAV); ground station; multithread

世界第一款K波段DAC的設計

作者：Marc Wingender Romain Pilard Julien Duvernay

單位：Teledyne e2v 公司，美國

摘要：本文透露了Teledyne e2v 公司世界首款K波段數模轉換器EV12DS460A背后的設計秘密，介紹了為提高性能和規避CMOS設計限制而引入的超高速制程。解釋了如何通過緊湊的單核量化器，配合仔細斟酌的設計方案，讓EV12DS460A的性能具有突破性提高。最后說明布線和電路簡化的細微差別是設計時應考慮的重要因素。

關鍵詞：K波段；數模轉換器；EV12DS460A；帶寬

中圖分類號：TN79+2 文獻標識碼：B

文章編號：1006-883X(2018)07-0039-07

收稿日期：2018-04-25

Design of the World's First K-band DAC

Marc Wingender, Romain Pilard, Julien Duvernay

Teledyne e2v, USA

Abstract: The design secrets behind the world's first K-band data-analog converter (DAC) EV12DS460A from Teledyne e2v are presented.The reasons why new capabilities can emerge are avoiding established CMOS design principles and applying an ultra-high speed process. It is explained how a compact, single-core quantizer coupled with careful design choices leads to the breakthrough performance of EV12DS460A . Finally, it is shown that the delicate differences between wiring and circuit simplification are important factors to be considered in design.

Key words: K band; digital-analog converter(DAC); EV12DS460A; band wide

使用模塊化平臺實現高能效物聯網設備

作者：Pavan Mulabagal

單位：安森美半導體，美國

摘要：傳感技術的最新進展和新出現的通信協議為物聯網的推廣提供了動力。但是，物聯網多學科性質對技術的廣泛性要求，以及用戶對電池壽命的擔憂，對發展物聯網應用提出了挑戰。保證高效運行的互聯技術、創新的免電池傳感器和綜合性模塊化開發平臺將為物聯網的潛在用戶和解決方案提供商提供更多的機會。本文介紹了安森美半導體的藍牙低能耗生態系統RSL10、智能無源傳感器技術和IoT開發套件(IDK)，有助于快速制作物聯網相關產品原型，減少產品上市時間。

關鍵詞：物聯網；低功耗藍牙；智能無源傳感器；物聯網開發套件

中圖分類號：TP212 文獻標識碼：D

文章編號：1006-883X(2018)07-0046-03

收稿日期：2018-05-20

Implementing Energy Efficient IoT Devices Using Modular Platforms

Pavan Mulabagal

ON Semiconductor, USA

Abstract: New technical advances in sensing and emerging communication protocols give the deployment of the Internet of Things (IoTs) real momentum.But a broad set of competencies from the multi-disciplinary nature of IoT and the worry about battery life are challenges for development of IoT application.Connectivity technologies delivering highly efficient operation, innovative battery-free sensor and comprehensive modular developing platform will give more help for potential users and solution providers of the IoTs. A Bluetooth low energy ecosystem RSL10, smart passive sensing technology and an IoT Development Kit (IDK) from ON Semiconductor are introduced, which aid customers in rapidly prototyping relevant IoT products and reduce the time-tomarket of products.

Key words: Internet of Thing (IoT); Bluetooth low energy; smart passive sensor; IoT development kit