多MEMS陀螺數(shù)據(jù)融合系統(tǒng)的設(shè)計(jì)和實(shí)現(xiàn)
發(fā)布時間:2018-02-01 23:11
本文關(guān)鍵詞: 微機(jī)電陀螺儀 零偏穩(wěn)定性 小波融合 多尺度分析 出處:《儀器儀表學(xué)報》2017年08期 論文類型:期刊論文
【摘要】:微機(jī)電系統(tǒng)陀螺儀以其成本低廉和小巧方便已經(jīng)廣泛應(yīng)用于軍民領(lǐng)域,但是其仍然面臨著零偏穩(wěn)定性不夠高的問題。針對這種現(xiàn)象,設(shè)計(jì)了一套空間大小僅為45 mm×55 mm×30 mm的可擴(kuò)展可移植的硬件平臺,在此平臺上利用小波域多尺度融合算法,對4個微機(jī)電陀螺儀所采集的原始數(shù)據(jù)進(jìn)行實(shí)時小波融合處理。分別對該集成系統(tǒng)在靜態(tài)和動態(tài)環(huán)境下進(jìn)行測試,實(shí)驗(yàn)結(jié)果表明,該系統(tǒng)運(yùn)行穩(wěn)定可靠,融合處理后的數(shù)據(jù)標(biāo)準(zhǔn)差都比融合前降低了一個量級。
[Abstract]:MEMS gyroscope has been widely used in military and civilian fields with its low cost and compact convenience, but it still faces the problem of low stability of zero bias. A portable hardware platform with a space size of only 45mm 脳 55mm 脳 30mm is designed. The multi-scale fusion algorithm in wavelet domain is used on the platform. The original data collected by four MEMS gyroscopes are processed by real-time wavelet fusion. The system is tested in static and dynamic environment. The experimental results show that the system is stable and reliable. The data standard deviation after fusion is one order of magnitude lower than that before fusion.
【作者單位】: 西安理工大學(xué)自動化與信息工程學(xué)院;
【基金】:國家自然科學(xué)基金(61377080)項(xiàng)目資助
【分類號】:TH-39
【正文快照】: 0引言微機(jī)電系統(tǒng)(micro electro mechanical systems,MEMS)陀螺儀憑借體積小、重量輕、便于低成本實(shí)現(xiàn)等特點(diǎn),已經(jīng)在諸多領(lǐng)域得到了廣泛應(yīng)用,但是其仍然面臨著零偏穩(wěn)定性不高的問題,這導(dǎo)致MEMS陀螺儀在一些精密測量行業(yè)中的應(yīng)用受到限制。為了提高測量精度,人們除了在陀螺儀的,
本文編號:1483093
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