wide-angle scanning 中文意思是什麼
wide-angle scanning
解釋
廣角掃描-
As ttd ( true time delay ) is utilized in optically controlled phased array at sub - array level to replace the phase shifter in general phased array radar system, and make time delay compensation at sub - array level, which can reduce aperture effect considerably and make the broadband and wide - angle scanning of phased array antennas come true
由於光控相控陣雷達在子陣級上引入實時延時線ttd ( truetimedelay )取代常規相控陣雷達中的移相器進行子陣級的延時補償,大大減輕了孔徑效應,使相控陣雷達實現了寬帶寬角掃描。 -
Because of the crystalline leading to the piezoelectricity of pvdf, pvdf fiber and pvdf / pa11 fiber ' s structures and crystalline were investigated and analyzed by means of wide angle x - ray diffraction, differential scanning calorimetry, fourier transmittance infra - red spectroscopy and scanning electron microscopy, etc. it was shown that there are two kinds of crystalline - a phase and b phase in pvdf fiber
由於pvdf的壓電性與晶體結構有關,於是利用紅外光譜、差熱分析、廣角x光衍射和掃描電鏡等測試手段對純pvdf纖維以及pvdf pa11共混纖維的結構性能及晶型轉變進行了深入的研究。
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