毫米波焦平面陣列的1/f噪聲的小波處理方法
THE PROCESSING MEANS OF 1/F NOISE IN MILLIMETER WAVE FOCAL PLANE ARRAY WITH WAVELET TRANSFORM
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摘要: 文中在概要介紹毫米波焦平面陣列成象探測(cè)器中存在的1/f 噪聲的特性的基礎(chǔ)上，深入分析了小波變換與1/f 噪聲的關(guān)系，提出用小波分解的方法對(duì)毫米波焦平面探測(cè)器的1/f 噪聲進(jìn)行去相關(guān)處理，推導(dǎo)了相應(yīng)的表達(dá)式。仿真結(jié)果表明可得到滿意的效果。
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關(guān)鍵詞:
- 毫米波焦平面陣列;1/f噪聲;小波變換;去相關(guān)
Abstract: After briefly interoducing the characteristics of 1/f noise in millimeter wave focal plane array detectors, the paper analyses the relation of the wavelet transform and 1/f noise in detail and suggests the fashion of decorrelating 1/f noise using the wavelet transform., also deduces the relative expressions. The results of computer simulation show the good effect. -
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