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基于MSP430的水声值更引信的设计 被引量:4

Design of underwater acoustic watch fuze based on MSP430
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摘要 介绍了一种基于低功耗处理器MSP430F5438的被动声值更引信,由处理器内部AD模块实现高速采样,采用双梯度动声引信结合声压变化率的方法检测舰船辐射的声场信号,初步检测目标,检测结果送入战斗DSP确认。经实验室测试,值更引信系统检测概率90%,虚警概率10%,均达到设计指标。由于编程实现了低功耗模式,系统功耗低于30 mA,满足引信服务期的低功耗要求。 A design of underwater acoustic watch fuze based on low power MSP430F5438 is proposed.The high-speed sampling is realized by the interal AD.Double gradient dynamic acoustic fuze method combined acoustic pressure variation is adopted to detect the ship-radiated signal.Then the detect result is sent to DSP system to confirm.The system reaches detection probability of 90% and false-alarm probability of 10% in the laboratory test,which meets the design specifications.The low power mode adopted by system is less than 30 mA,which can meet the requirements in the working period of the watch fuze.
出处 《国外电子测量技术》 2011年第7期72-74,共3页 Foreign Electronic Measurement Technology
关键词 低功耗 声引信 检测概率 虚警概率 low power acoustic fuze detection probability false-alarm probability
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