spectrum n. (pl. -tra ) 1.【物理学】谱,光谱;波谱;能谱,质谱。 2.【无线电】射频频谱;无线电(信号)频谱。 3.【心理学】(眼睛的)余像;残像。 4.〔转义〕范围,幅度;(连续的)系列。 an absorption spectrum 吸收(光)谱。 a bright line spectrum 线状光谱。 an optical spectrum 光谱。 a solar spectrum 太阳光谱。 a wide spectrum of opinion 意见的不同幅度甚大。
Peak assignment in the region of 4800 - 6500cm - 1 is also completed by mir / nir 2d correlation spectrum in the region of 2800 - 3100 cm - 1 and 4000 - 4800cm - 1 为利用中红外区已知的、丰富的结构信息研究近红外光谱带的分辨与指派打下了基础。
2 . the signal correlation spectrum is corrected to rectangle spectrum by using spectrum correcting technique and then added window to restrain distance sidelobe , and all one dimension divided correlation outs are added diversified windows to restrain rate sidelobe 2 、利用谱修正技术把相关输出信号频谱修正成矩形频谱,再加窗抑制距离旁瓣,对所有一维分段相关输出组纵向加各种窗形抑制速度旁瓣。
Abstract : this paper first discusses the optimum method of feature choice in the fuzzy recognition of tank under the condition of different noise source interference . then , through quantitative analysis of the peak features of power spectrum and auto - correlation spectrum , it analyzes and contracts the recognition effects of tank under the condition of multi - source interference . finally , it gives the profitable results 文摘:对不同声源干扰条件下坦克识别的特征优选方法进行了深入的研究和探讨,在此基础上,通过双谱谱峰特征的定量分析,对多源干扰时的坦克识别效果进行了分析对比,得出了有益的结论。
This paper first discusses the optimum method of feature choice in the fuzzy recognition of tank under the condition of different noise source interference . then , through quantitative analysis of the peak features of power spectrum and auto - correlation spectrum , it analyzes and contracts the recognition effects of tank under the condition of multi - source interference . finally , it gives the profitable results 对不同声源干扰条件下坦克识别的特征优选方法进行了深入的研究和探讨,在此基础上,通过双谱谱峰特征的定量分析,对多源干扰时的坦克识别效果进行了分析对比,得出了有益的结论。
Perturbations that could change the secondary structure of protein are introduced in this thesis . appling 2d correlation spectrum , peaks conformation and their assignments in the region of amide i and iii are completed to the bovine serum albumin in the phosphate buffer solution under alkaline ph - independent perturbation 以牛血清白蛋白为例,应用二维红外相关光谱技术,综合应用酰胺带和酰胺带信息,对碱性ph扰动下的牛血清白蛋白二级结构在红外光谱酰胺带和酰胺带中的信息进行了谱峰确认及归属指派。