摘要：
Aiming at the high-dimensional data generated by intrusion detection system and Extreme Learning Machine (ELM) parameter optimization problems, a model based on Improved Artificial Bee Colony (IABC) combined with ELM is proposed. At first the ABC algorithm is applied to select input layer weight and hidden layer bias of the ELM, and the root mean square error of each individual in the initial population is taken as fitness degree value. In order to further improve calculation accuracy of the algorithm, the algorithm adopts the strategy of self-adaptive adjustment neighbor search step length. At the same time, the mechanism of self-adaptive proportion selection is introduced to balance the global search ability and the local search ability. Last, experiments were carried out using the sample data from KDD99. The experimental results show that the proposed algorithm can find more optimal parameters of the ELM, accelerates detection speed, improves the accuracy of network intrusion detection more effectively, and a new research way for network intrusion detection is provided.
摘要：
Imaging sensor and wireless sensor networks are combined in this essay to establish the wireless grain insect monitoring network. The micro camera constituted of CMOS imagining sensor embeds the built-in nodes in a specific location in bulk grain. The light and bait of LED built in the nodes can attract the insects to go into the photographing region. The camera shoots the insects on the instruction of control center, then the wireless transmission module of application integrated in CPU transmits the photograph to the computer as of control center. In this way the information of grain insects in bulk grain are collected as reliable foundation for the prevention and cure of grain insects.
期刊：
Applied Mechanics and Materials,2015年743:184-188 ISSN：1662-7482
作者机构：
[Yi Leng; Xiong Shi] Department of Information Counter,Air Force Early Warning Academy;[Yi Leng; Xiong Shi] School of Electric and Electronic Engineering,Wuhan Polytechnic University
会议名称：
2015 International Conference on Mechanical,Electronic and Information Technology Engineering
会议时间：
2015-03-21
会议地点：
中国重庆
关键词：
direct digital frequency synthesizer;initial phase of oscillation;the programmable control
摘要：
Based on in depth study of internal structure and external interface of AD9854,applying singlechip to control its interior programmable register and related accumulator through parallel interface of AD9854,to explore feasible control method,after reiterative experiment,achieved programmable control on initial phase of oscillation of output pulse of AD9854.This method had applied on some radar echo signal simulator,fulfilled fixed objective echo signal synthesizing.
会议论文集名称：
ACSR-Advances in Comptuer Science Research
关键词：
Wireless video transmission;Grain insect monitoring;Network node
摘要：
This article designed a wireless video grain insect monitoring network with wireless network sensor nodes embedded in bulk grain. This sensor node is composed of miniature camera, wireless transceiver, lighting LED, trapping device for grain insects and charging battery. The grain insects are lured into the monitoring area by the temptation of bait leading into being trapped in the help of LED light, sensor nodes with built-in camera periodically or under order takes the grain insects pictures, then the pictures are sent to the control center by wireless transmission, and finally shown in the computer screen, the real time monitoring on grain insects of quantity and species in bulk grain is achieved.
作者机构：
[Ya Liu; Xiong Shi] School of Electrical and Electronic Engineering,Wuhan Polytechnic University
会议名称：
2014 International Conference on Information Engineering and Education Science
会议时间：
2014-06-12
会议地点：
TIANJIN, CHINA
摘要：
The communication engineering major in Wuhan Polytechnic University chooses highfrequency electronic circuit in their teaching process as the professional foundation course and accordingly carry out c
关键词：
Countdown;Frequency measurement;Pulse radar;Transmitting frequency
摘要：
High stability and constant-temperature crystal oscillator as time standard, microcontroller as control core, the countdown frequency measuring electric circuit, rapidly and timely surveying the transmitting frequency during the constant radar transmitted pulse, is a digital frequency measurement module. This module is an important constituent part in digital automatic radar frequency control system, having been successfully applied in a self-adaption frequency control system of meter wave warning radar.
关键词：
Counting down method;Frequency measuring;Pulse radar;Transmission frequency
摘要：
The intermediate frequency signal, which is generated by down conversion of radar transmission pulse, is settled as square wave through the signal processing circuit; in N cycle of the unknown square wave of this frequency, the frequency measurement circuit with counting down method uses the counter and the time-sequence control circuit consisting of TTL integrated circuit, such as F161 and LS221, to count the standard pulse exported by homothermal crystal with high stability and then load the result in single chip in order to obtain the frequency measuring result. This frequency measuring circuits, a digital frequency measurement module, can rapidly and timely survey the transmission frequency during the constant radar transmission pulse and has been successfully applied in a self-adaption frequency control system of meter wave warning radar.
期刊：
Applied Mechanics and Materials,2013年341-342:975-979 ISSN：1660-9336
作者机构：
[Liu Z.; Yuan J.C.; Shi X.; Mei S.] School of Electrical and Electronic Engineering, Wu Han Polytechnic University, Wu Han Hubei province, Post code: 430023, China
会议名称：
2013 International Conference on Energy Research and Power Engineering, ERPE 2013
会议时间：
24 May 2013 through 25 May 2013
会议地点：
郑州
会议论文集名称：
2013 International Conference on Energy Research and Power Engineering(2013能源研究与电力工程国际会议)(ERPE2013)论文集
关键词：
Digital signal processor;Face detection;Face recognition;TMS320DM642
