By Richard H. Vollmerhausen
Advancing expertise in detector arrays, flat panel screens, and electronic snapshot processing presents new possibilities to extend imaging functions and improve procedure functionality. Technical managers and layout engineers are confronted with comparing the associated fee, weight, and function of an ever-expanding collection of know-how concepts. This instructional textual content presents the speculation, techniques, and data essential to review and examine the functionality of accessible imaging applied sciences. half I updates the sooner paintings awarded in Analysis of Sampled Imaging platforms (2000). half II discusses functionality review of electro-optical imagers. half III offers desktop courses (on a supplemental CD-ROM) and updated info on detector arrays, optics, and exhibit recommendations.
The e-book covers numerous demonstrate codecs and interfaces, and offers designated details on on hand focal aircraft arrays (FPAs). specific emphasis is put on concept and perform for the big variety of obtainable infrared FPAs. applied sciences represented contain InSb, HgCdTe, QWIP, and uncooled thermal arrays. info is equipped at the quantum potency, blur, crosstalk, and noise features of every know-how. The detector and array dimensions of obtainable FPAs are supplied. the knowledge on optics, exhibit, and FPA subassemblies permits the version consumer to make speedy and sensible functionality checks of electro-optical imager designs
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Extra resources for Analysis and evaluation of sampled imaging systems
Bibliography Bracewell, R. , The Fourier Transform and Its Applications, McGraw-Hill, New York (1986). , Linear Systems, Fourier Transforms and Optics, Wiley, New York (1978). Goodman, J. , Introduction to Fourier Optics, McGraw-Hill, San Francisco (1968). Holst, G. , Sampling, Aliasing, and Data Fidelity, SPIE Press, Bellingham, WA (1998). Wozencraft, J. M. and I. M. Jacobs, Principles of Communication Engineering, Wiley, New York (1965). 0 μm. 75 μm. 0 μm. 5 μm the near infrared. Light with wavelengths between 1 and 2 μm is called short-wave infrared (SWIR).
4(c), gain is used to increase both target contrast and average luminance by B/A. In Fig. 4(d), the display brightness control or imager level is used to lower average display luminance back to the original level DLUM. Target contrast increases by con equal to B/A. Imager gain and level can be used to enhance scene contrast. The first term in brackets in Eqs. 6) represents eye noise. The effect of eye threshold is mitigated by effective use of the imager gain and level controls. However, as the eye-noise term decreases, the detector noise becomes dominant.
9 per km. 4-per-km transmission. 3 Typical SGR ratios.
Analysis and evaluation of sampled imaging systems by Richard H. Vollmerhausen