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Analog / digital signal processing technology in the proximity fuze Applications

Author: LiuYanGe
Tutor: ChengXiang
School: Nanjing University of Technology and Engineering
Course: Weapons systems and application engineering
Keywords: Fuse Analog / digital signal processing Doppler effect Frequency
CLC: TJ434
Type: Master's thesis
Year: 2010
Downloads: 148
Quote: 0
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Abstract


Our equipment traditional ammunition radio fuze , the signal processing circuit through on goal Doppler signal amplitude information processing controller detonate opportunity exists in the application fuze burst point spread large Warhead low efficiency, high anti-jamming performance is not problem . In the modern information warfare conditions, to solve these problems in improving immunity and radio fuze warhead coordination performance more and more urgent . Based on the principle of the Doppler effect is proposed for Radio Fuze Signal Processing take full advantage of the Doppler frequency information contains the missile and target position, velocity , attitude and other kinds of information , process it and then combined to control the amplitude information processing fuze initiation timing point of view , the purpose is to make the best detonating fuze detonates area , while greatly improved noise immunity. Mainly for the study of the following tasks : for the feature quantity of the frequency selection , analysis of the Doppler signal , select the frequency information included in the calculation for the control of the microprocessor program information shells , mainly the frequency characteristic and the frequency change rate characteristic ; After determining the processing circuits of relevant information analysis process , based on the general scheme feasible , draw processing circuit schematic diagram and a brief description ; hardware circuit design , including the appropriate filtering and pre-processing circuit , the amplitude information acquisition and processing circuit , frequency information acquisition and processing circuit, power circuit, the implementation circuit design and analysis of these circuits work processes ; given microprocessor frequency information flow and processing circuitry and software device selection process design ; simulation testing and result analysis . The simulation research results show that the solution to the traditional radio fuze design processing circuit problems , the results have been applied to a new type of naval research and development of proximity fuze and achieved good results.

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CLC: > Industrial Technology > Arms industry > Ammunition, fuses, pyrotechnics > Fuse > Proximity fuze
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