This paper utilizes masking rate theory to analyze the variation of center zero - level energy , the influence of metallic mesh ’ s different parameters on infrared transmitting ; deduces the relational expression between infrared transmitting efficiency and metallic mesh ’ s parameters ; comes to the conclusion that we can improve infrared transmitting efficiency by increasing 理論研究表明,金屬網(wǎng)柵的周期選擇在200 ~ 400 m之間,線寬不大于10 m ,是較為理想的網(wǎng)柵參數(shù)。最后,在實(shí)驗(yàn)室里用1 ~ 20ghz的信號(hào)發(fā)生器、功率放大器和頻譜分析儀等雷達(dá)波檢測(cè)設(shè)備,對(duì)金屬網(wǎng)柵的屏蔽效率進(jìn)行測(cè)試。
Researches focus on the identification technology of joint transform correlator after building the volume holographic storage system . it analyzes the relationship between position of related export signals and position of import images . and it gives the condition that related export signals separates from zero - level flare 在完成體全息存儲(chǔ)系統(tǒng)的構(gòu)建之后,開(kāi)始針對(duì)聯(lián)合變換相關(guān)識(shí)別技術(shù)進(jìn)行研究,理論分析了相關(guān)輸出信號(hào)方位同輸入圖像方位之間的關(guān)系,并給出了相關(guān)輸出信號(hào)同零級(jí)光斑分離的條件,最后完成了聯(lián)合變換相關(guān)識(shí)別系統(tǒng)的設(shè)計(jì)和構(gòu)建。